Product Catalog #55 - J.R. Clancy, Inc. · 2017-09-19 · J.R.Clancy, Inc. 7041 Interstate Island Road Syracuse, NY 13209 USA Tel. (315) 451–3440 Fax. (315) 451–1766 Toll Free:

Product Catalog #55

J.R.Clancy, Inc.7041 Interstate Island Road Syracuse, NY 13209 USATel. (315) 451–3440Fax. (315) 451–1766Toll Free: 1–800–836–1885

■ Section 1—Motorized Rigging & Controls

1-1 Motorized Rigging & Controls 1-5 Winches — Closed Loop, Traction 1-2 About Our Custom Winches and Custom1-3 Standard Winch Construction 1-6 Winch Options1-4 Winches — Drum, Line Shaft, Pile-up Drum 1-7 Control Systems

& Point Hoists 1-9 Starters and Drives

■ Section 2—Rigging Equipment

2-1 About Our Blocks 2-10 Floor Blocks, Tension & Automatic2-2 Head Blocks, Upright — 55 Series 2-11 Floor Blocks, Combination & Wire Guide 2-3 Head Blocks, Underhung — 59 Series 2-12 T-Bar Arbors — 15 Series2-4 Loft Blocks, Underhung — 19 Series 2-13 Wire Guide Arbors — 85 Series2-6 Loft Blocks, Upright — 55 Series & 2-14 Lattice Track Arbors & Guides — 84 Series

Underhung — 59 Series 2-15 Rope Locks & Counterweights 2-7 Loft Block Options 2-16 Locking Rails2-8 Multi-Sheave Blocks, Underhung — 19 & 24 2-17 Guide Systems, Outrigger Brackets &

Series, Upright — 55 Series Index Lights2-9 Mule Blocks — 12 Series

■ Section 3—Rigging Accessories

3-1 Battens and Pipe Clamps 3-6 Wire Rope & Fittings3-2 Miscellaneous Rigging Hardware 3-7 Curtain Tracks3-4 Rope & Rope Rigging3-5 Capstan Winch

■ Section 4—Fire Safety Curtains and Hardware

4-1 About Our Fire Safety Curtains 4-5 Sure-Guard™ Release & Winches4-2 Straight Lift Fire Safety Curtains 4-6 Smoke Pockets, Curtain Guides & Dashpot4-3 Brail Type Fire Safety Curtains 4-7 Fire Line Hardware4-4 Fire Safety Curtain Release Systems

■ Section 5—Reference

5-1 Service Factors 5-4 Glossary of Rigging Terms5-2 Resultant Loading, Fleet Angles & 5-7 Index

Minimum Allowable Bending Ratios 5-8 What Else Do We Do?5-3 Installation of Crosby© Forged Cable

Clips & Weight Capacity of Counterweight ArborTerminating Nicopress® Sleeves

Table of Contents

There are tips throughout thiscatalog to make installation ofequipment safer and easier,or to aid in the operation ofrigging equipment.

We also have instruction sheetsfor many of our products thatcontain detailed information aboutequipment installation, operationand maintenance. Please call us ifyou’d like to receive them.

Tip!


1-1

Section 1Motorized Rigging & Controls

Motorized RiggingThe advent of control systems that offer accurate, high-speed, repeatable moves has expandedthe use of motorized rigging far beyond traditional tasks such as moving heavy orchestra shellceilings and lighting bridges. Motorized systems with sophisticated controls are the toolsthat permit more dramatic effects in many shows. Sophisticated users and productionrequirements continue to drive this market with J.R.Clancy taking a leadership position inproviding new systems and equipment.

The reasons for this transition are many. Motorized systems do not require counterweights,so the systems are easier to install and use. Computerized control systems provide an unmatchedlevel of precision and repeatability for cues, make each performance more uniform, and stillmaintain the overrides necessary for safety.

Motorized systems are not only found in major opera houses, arenas, and studios, buteven in high schools, colleges, and cruise ships.

Safety and ReliabilityTheatrical rigging systems are unique and have very special requirements not found in otherindustries. Components must be carefully chosen to meet the special needs and requirementsof the live entertainment industry.

Building motorized hoisting systems requires a meticulous knowledge of mechanical andelectrical principles. J.R.Clancy’s engineering department combines this knowledge with morethan 110 years of rigging experience, ensuring the safety and reliability of the motorizedrigging equipment you choose.

Using the highest quality parts is an important safety factor. The company’s dedication tosafety continues throughout the winch, including precision turned wire rope drums, highquality flange bearings, and the careful selection of components based on sound engineeringprincipals, backed by testing. Our extensive testing program makes use of in-house facilities,and involves significant participation by several independent testing laboratories.

LeadershipJ.R.Clancy has been an innovator in the development and installation of motorized riggingsystems. In the early 1960’s, J.R.Clancy built some of the first performance rigging controlsystems; using variable frequency motor generator sets to synchronize variable speed hoists.As available technologies have advanced, the company has continued to develop newequipment and systems for motorized rigging.

Today, we offer solid state electronics and computerized controls. A program of ongoingresearch on winches and control systems ensures that J.R.Clancy products offer safe, reliable,cost effective performance for the entertainment industry. A specially-built 60' indoor testtower allows our engineers to test and evaluate equipment under real operating conditions.


How to select a winchMotorized winches are available in a wide range of speeds, capacities and types. All J.R.Clancy winches are custom designed and built to meet our customer’s specific requirements.The following pages contain an overview of major choices, types of winches, commonlyused features, and options.

Full design and application assistance is available from J.R.Clancy. Please contact usto learn how we can provide a motorized rigging system that will best meet your needs.

Fixed or Variable Speed?Fixed speed winches are generally used for heavy loads that do not have to move in front ofan audience. Examples include lighting battens, speaker clusters, and orchestra shell ceilings.

Variable speed winches are ideal for use with scenery which must move in front of theaudience. For example, a winch that performs a subtle move at less than a foot per minutecan then accelerate to 4 feet per second.

What Speed?Winch speeds vary widely with the application. An orchestra shell ceiling or lighting bridgemay travel at speeds as low as 3 feet per minute. Lighting sets typically move at 20 - 30 fpm.

Variable speed winch performance varies with the type of electronic drive (controller)used. We may use drives that provide full torque at zero speed, producing an effectivelyinfinite speed range. Top speeds are dictated by the user’s requirements. Scenery sets incollege or regional theatres typically run at speeds up to 120 fpm. Major performing artscenters and opera houses may have speeds of up to 240 fpm, while some of the newestinternational opera houses are using winches with speeds of up to 360 fpm. Main curtainhoists occasionally operate even faster.

What Capacity?Scenery sets are traditionally rated to carry loads of 15 - 20 lbs per foot of batten length,while lighting sets can be rated at up to 40 lbs. per foot. Once a maximum capacity isselected and the winch built, it is very difficult to increase the capacity.

CounterweightsMost variable speed winches are “dead haul”, but counterweight assists are often providedon slower, speed fixed and variable speed sets to reduce the size of the winch and increaseflexibility.

1-2

Section 1About Our Custom Winches


The following features are typical of the construction of J.R.Clancy winches. All componentsare specifically selected to meet the performance requirements of their applications and tohold full capacity loads continuously.

Motor, Brake and GearboxThe heart of a motorized winch is the motor, gearbox, and primary brake. In our standarddesign these three items are supplied as single integral unit from a single manufacturer(SEW Eurodrive) that is renowned for its precision engineering and superb craftsmanship.Totally enclosed, fan-cooled motors provide dependable operation at every performance.

Gearboxes are typically helical worm units, with a cast iron gear case for protectionagainst shock damage. Shafts have high capacity bearings and are protected by triple lipoil seals to prevent leaks. Gearboxes selected by J.R.Clancy have a minimum AGMAservice factor of 1.0 with a mechanical strength service factor of 1.3.

Spring applied, electrically released brakes, provide “fail safe” operation. To meet theneeds of theatrical usage, brakes are specifically designed to reduce noise duringengagement and for use in hoisting applications. They have a minimum retarding torque of200% of the motor torque, ensuring the brake can both stop and hold the load. Finally, forincreased reliability, brakes are integral to the motor, acting directly on the motor shaft,not an “add on” assembly.

DrumsDrums are helically grooved to carry the lift lines in a single layer, so that the cable isproperly supported and winds on and off consistently. Drums usually are an all weldedsteel construction, designed to properly support the specified loads. Drums used in highspeed systems are manufactured to very high tolerances for accurate positioning. All drumsmeet the wire rope manufacturer’s recommended drum diameter and groove designrequirements to ensure long wire rope life.

Shafts and bearingsShafts are solid, and extend all the way through the drum for greater strength and security.All shafting, keys and keyways are in accordance with ASA “Code for Design of TransmissionShafting”. Self aligning flange bearings, properly rated for the speed and load, are used tosupport drums.

Limit SwitchesWinches are equipped with limit switches that prevent travel beyond preset “end of travel”points. These are backed up by ultimate, or overtravel limits that will function in theunlikely event of a failure of the normal limits. All limit switches are industrial grade, directstruck, or positively driven rotary switches.

1-3

Section 1Standard Winch Construction

Emergency stop devices, such asE-stop buttons and overtravellimits, are not intended for routineuse. They impose abnormal strainson equipment and structures.

Tip!


Drum WinchThe most widely used motorized winch has a single drum that is long enough toaccommodate all of the lift lines required for the set. The drum is helically grooved so thatthe lift lines wrap neatly in a single layer to avoid damaging the wire rope. The drum canbe either horizontal or vertical, depending on project requirements.

Winches can be located on the grid, galleries, or in a separate motor room. A head blockand loft blocks may be used to route the lift lines to the batten, or other load.

Drum winches are usually “dead haul”, where the entire load is supported by the winch,without the use of counterweights.

Line Shaft WinchLine shaft winches are self-contained units with a separate drum for each lift line. No wallor floor space is required for the winch, nor are head blocks or loft blocks. Due to its design,the load placed on the building structure is a vertical load only, without the resultant andcompression loads associated with conventional rigging. Line shaft winches are particularlyuseful for renovations and in locations with limited space.

In order to compensate for movements in the structural steel as loads change, J.R.Clancyline shaft winches include universal joints in the shafting between the drums. This providesincreased reliability and easier installation, and prevents the accumulation of destructivestresses within the shafting.

1-4

Point HoistPoint hoists offer the flexibility of rope spotlines with the speed and accuracy of amotorized set. The ultimate in flexibility, point hoists offer an individual winch for eachlift line. Also known as motorized spotlines, point hoists provide a versatility that is notavailable from rows of parallel battens. Point Hoists are normally variable speed.

Computerized rigging control consoles allow multiple winches to be synchronized,so that several point hoists can lift a single piece. The hoists may also be taken out ofsynchronization to intentionally twist and tilt pieces for dramatic effect.

Widely used in major opera houses and performing arts centers, point hoist systemsoffer a new, adaptable approach to rigging that will become increasingly popular in alltypes of venues.

Pile-up Drum WinchPile-up or Yo-Yo winches wrap each lift line on top of itself in a narrow slot. They may beused when there are space problems that preclude the use of drum-type winches, such asbanner hoists. Note that the lifting speed increases slightly with each added layer of cable.

Drum Winch

Line Shaft Winch

Point Hoist

Pile-up Drum Winch

Section 1Winches


Traction Drive WinchTraction drive winches may be used to motorize counterweight sets. Instead of a drum,the winch drives a traction head block, with special “V” shaped grooves that grip the liftlines running to the counterweight arbor. One common use is for motorized fire safetycurtains.

Custom WinchesJ.R.Clancy designs and manufactures a broad range of specialty and custom winches tomeet the requirements of users the world over. Some applications, such as speaker clusterhoists, may require two drums, one on each side of the gearbox. Other applications mayrequire a staggered drum where different portions of the drum have different diameters.Contact us with your special requirements.

Closed Loop Chain Drive WinchIn some applications, such as lighting bridges, it may be desirable to combine counterweightwith a motorized winch. In such cases, the counterweight is often moved by a closed loopof roller chain driven by a sprocket on the winch. This provides a positive drivingmechanism that works with an arbor-heavy load and fits in a minimum amount of space.

1-5

Double Drum Winch

Closed Loop Chain Drive

Section 1Winches

Test emergency stop switches andovertravel devices occasionally toensure that they’ll work whenneeded.

Tip!

Traction Drive Winch


The following options are often used, but don’t represent the full range of possibilities.Please contact us for assistance with your special requirements.

Slack Line DetectorThis device detects slack lift lines and/or lines with below minimum tension and stops thewinch. Several styles of mechanical and/or electronic detectors are available.

Crossed Groove DetectorThis device stops the winch in the event that a lift line crosses over a groove or another liftline as it winds onto the drum.

Travelling DrumZero fleet angle winches use drums that move so the take-off point of the lift linesremains constant as the drum turns. This is useful when there is insufficient distancebetween the drum and the first block to permit a proper fleet angle.

Vertical DrumAll J.R.Clancy winches are available with vertical drums to save space or meet specialrequirements. Drums may be fixed or travelling, as described above.

Secondary BrakesSecondary brakes operate on the load side of the gearbox. They provide back up protectionagainst failures in the controls, primary brake or gearmotor. Several models are offered:■ Overspeed Brake

Directly coupled to the shaft driving the winch drum, the overspeed brake engages automatically if a preset speed is exceeded. The unit works on centrifugal forces, bringing the winch to a controlled stop in the event of an overspeed condition. This fully automatic brake functions without any power or external control system.

■ Load Brake

The brake is applied and released in synchronization with the motor brake. Both electrical and air operated brakes are available. Brakes are normally spring applied and powered to release.

1-6

Section 1Winch Options

Experience and product testing havetaught us that the speed of fixedspeed winches shouldn’t exceed 30feet per minute for lighting battensor 60 feet per minute for scenery orcurtain battens. Shock loads imposedduring starting and stopping willshorten the life of lamps and scenery.Use variable speed machines iffaster travel is desired.

Tip!


The J.R.Clancy Controls Department designs, programs and builds a broad range ofstandard and custom control systems to meet individual customer needs. The ControlsDepartment has its own offices, lab area, and assembly shop in our factory.

The following pages provide an overview of our capabilities, including severalcomputerized control systems. In addition to the systems shown, we build many customsystems every year to meet individual requirements. Contact us with your needs.

Push Button ControlThe most basic system consists of “up” and “down” push-buttons controlling a reversingstarter which, in turn, operates a fixed speed winch. Individual starters can be located at thewinch, or a group of starters may be housed in a motor control center cabinet. All startersmeet National Electrical Code requirements, and utilize components selected for long lifeand reliability. UL 508 listing is available.

This type of equipment allows height positioning by “eye” and by end of travel limitswitches. Additional limit switches may be added for intermediate stops.

Computerized ControlMore sophisticated systems, such as multi-stop panels for orchestra lifts, incorporate

industrial grade Programmable Logic Controllers (PLC’s). Programs for these units arewritten by our Controls Department to assure knowledgeable support. Precision positioningand memorization of setups are the key reasons to use computerized controls. Systems thatoffer accurate high speed, repeatable moves ensure that equipment moves exactly the sameway in every performance, improving safety and performance.

Computerized systems range from simple, single channel curtain controllers, to ourShamrock series of consoles.

1-7

Push Button Controls

Section 1Control Systems

Variable Speed Curtain ControllerSingle and two channel controllers for variable speed curtains allow presetting up, down,and intermediate targets, speed control, and proportional ramping. These give an almostinfinite speed range to meet the dramatic needs of any production, while assuring you thatthe curtain will stop on target regardless of the speed selected. Controllers feature a digitaldisplay of actual and target positions, reliable industrial grade components, and can eveninclude a hand-held remote to allow control from the most convenient location.

Follow instructions for inspectionand maintenance of poweredrigging. Never operate poweredequipment with safety guardsremoved.

Tip!


Shamrock® Rigging Control SystemsIntroduced in 1984, the Shamrock was one of the first position control systems specificallyfor fixed speed winches. It has evolved significantly and is now offered in three versions:

The Shamrock VS2. The Shamrock VS2 provides control of up to 24 variable speed winches,with color touch screen displays. All actions are initiated by industrial grade “hold to operate”pushbuttons. Cues permit individual targets and speeds for each motor, and allow for thesynchronization of multiple hoists.

The Shamrock 5000. The Shamrock 5000 is a console based system with color displaysshowing all actions and a complete graphic layout of the equipment being controlled.This is a full functioned control system, with grouping, individual target positions foreach motor in a preset, etc. Both keyboard and trackball control are provided to meetdifferent operator preferences. A diagnostic display shows the components of a typicalwinch and indicates the status of each limit switch, contactor, and other monitoredcomponent. Options include a printer and hand held remote.

The Shamrock 2500. The Shamrock 2500 offers the convenience of a portable console, thatcan be carried around the performance area to provide the best viewpoint for theexecution of each move. It controls up to 99 motors, and allows up to 10 motors to movein each of 99 presets. The portable console features a four line digital display, function andnumeric keys and, of course, an “emergency stop” button.

Custom software is available to allow control of special elements, such as acoustic drapesand panels, masking systems, stage lifts, or studio hoists. Each of these options includescustom graphic displays, designed in cooperation with the client.

1-8

Shamrock VS2

Shamrock 5000

Section 1Control Systems


Fixed Speed StarterThe J.R.Clancy standard fixed speed starter is a full voltage, reversing unit containing anelectrically and mechanically interlocked reversing contactor. There is a line contactor that,although not required by code, offers an additional level of safety and reliability since itcontrols incoming power and is related to both the “E-Stop” and overtravel circuits. Both thereversing contactor and the line contactor are NEMA or IEC standard units. Also includedin each starter are a thermal overload element, short circuit protection in the form of fusesor circuit breakers, and any required interfacing relays. Units are built in accordance with theNational Electrical Code and may be UL Listed.

Starters are custom built to meet the specific needs of each application. Whether youneed individual starters mounted at each winch, or a Motor Control Center with multiplestarters at a central location, our Controls Department will build panels to meet yourrequirements.

Variable Speed DriveSelection of the appropriate drive technology is crucial to the reliable, consistent, and safeoperation of a motorized rigging system. In order to fit the performance requirements ofindividual projects, we offer several drive technologies. Drive systems go through anexhaustive in-house evaluation procedure, using our 60' indoor test tower, simulatingactual theatre conditions. This permits our Controls Department to select motor and drivecombinations that will function reliably and safely.

Both AC and DC drives are available, including AC drives which can produce full torqueat zero speed—assuring that loads can be held in position, even without the brake.

Variable speed drives may be located individually at each winch, or in a central MotorControl Center. These systems are designed, assembled and tested in our ControlsDepartment.

Custom Panel FabricationThe J.R.Clancy Controls Department can do all types of custom panel fabrication fornew work, retrofits, and upgrades. Equipment available includes:■ Simple industrial-type control panels ■ Motor Control Centers■ Integrated stage manager's panels ■ Custom video displays■ Custom control desks ■ Replacement of existing control systems

1-9

Fixed Speed Starter

Variable Speed Motor Control Center

Watch the load when moving a piecein either a manual or motorizedsystem.

Tip!

Section 1Starters & Drives


Sheave MaterialsNylatron GS® sheaves with molded grooves are available in eight inch (nominal) diameterfor 3/4" manila rope and 1/4" wire rope. Nylatron GSM® sheaves with machined groovesare also available in a twelve inch diameter for head blocks.

The grey iron used in our cast sheaves is ASTM A48 Class 30, a high-quality cast ironchosen for its ability to handle the static and dynamic loads involved in stage rigging. Allgrey iron sheaves have machined grooves.

Custom sheaves can be machined from cast Nylatron GSM®, grey iron, or steel to meetspecial requirements.

BearingsAll J.R.Clancy sheaves, eight inches and larger, are equipped with either maintenance free,sealed precision ball bearings or tapered roller bearings, rated for the specified loads.

Shafts Sheaves are supported by machined steel shafts. Shafts are keyed to the side plate at oneend to prevent rotation, and have a fine thread self locking nut on the other end to allowfor bearing adjustment.

ApplicationsSeveral series of blocks are available to meet different installation requirements.19 Series Underhung Loft Blocks for direct mounting to a single “I” beam. 24 Series Light Duty Underhung Blocks with in-line holes for mounting; typically to

wood beams or Unistrut™. Loft blocks and multi-sheave blocks are available, both in standard and pivoting models.

55 Series Upright Blocks with fully enclosed sheaves. These are normally mounted over two “I” beams or channels. Head blocks, loft blocks, and multi-sheave blocks are available.

59 Series Underhung Blocks with fully enclosed sheaves. These are normally supported byone or two “I” beams. Head blocks and loft blocks are available. 59 Series underhung blocks may need to be welded in position, depending on application.

Recommended Working LoadsRecommended Working Loads (RWL’s) are listed on the following pages for many blocks ofstandard design and construction. Ratings are for blocks mounted using standard design andconstruction. Ratings are for blocks mounted using standard hole spacing and Clancy mountinghardware in an approved manner. Data is based on correctly sized cables wrapped 90 degreesaround the sheaves as shown on the outline drawings, except for mule blocks that assume 180 degrees of cable wrap. Contact J.R. Clancy if ratings are required for other conditions.

2-1

Section 2About Our Blocks

Clancy uses sealed, precision ballbearings with lifetime lubrication inmany blocks. Tapered roller bearingsare greased in the factory with alubricant that will last for manyyears of normal use. If lubricationbecomes needed, please consult thefactory. A casual squirt of oil or dabof grease could end up on the stagefloor, the curtains, or the scenery,and might possibly cause a mess ora safety hazard.

Tip!


■ Upright style, normally supported by two structural beams■ ASTM Class 30 grey iron or Nylatron GSM sheave with machined grooves■ Equal pitch diameter on rope and cable grooves for smooth operation■ Tapered roller bearings■ Base angle legs turned in to allow close mounting centers. Notches allow clear

passage of all cables■ 10 gauge side plates fully enclose sheave; 16" blocks have 7 gauge side plates■ Side plates are bolted and welded to the base angles for maximum strength■ Six spacers between the side plates; four prevent cables from escaping the sheave grooves

8-5/8" Diameter Sheaves—1" BearingsCatalog Number Rope Diameter Cable Quantity & Diameter Sheave Material RWL Lbs.* A B C D W_____________________________________________________________________________________________________________________________1CS-60855R 3/4" 6 @ 1/4" Cast Iron 1300 32" 19" 11-7/16" 10-1/8" 5-3/8"_____________________________________________________________________________________________________________________________1CS-80855R 3/4" 8 @ 1/4" Cast Iron 1300 32" 19" 11-7/16" 10-1/8" 6-3/8"_____________________________________________________________________________________________________________________________

12" Diameter Sheaves—1" BearingsCatalog Number Rope Diameter Cable Quantity & Diameter Sheave Material RWL Lbs.* A B C D W_____________________________________________________________________________________________________________________________1NS-61255R 3/4" 6 @ 1/4" Nylatron 3000 32" 17" 15" 13-11/16" 5-3/8"_____________________________________________________________________________________________________________________________1CS-61255R 3/4" 6 @ 1/4" Cast Iron 3000 32" 17" 15" 13-11/16" 5-3/8"_____________________________________________________________________________________________________________________________1NS-81255R 3/4" 8 @ 1/4" Nylatron 3000 32" 17" 15" 13-11/16" 6-3/8"_____________________________________________________________________________________________________________________________1CS-81255R 3/4" 8 @ 1/4" Cast Iron 3000 32" 17" 15" 13-11/16" 6-3/8"_____________________________________________________________________________________________________________________________

16" Diameter Sheaves—1-1/2" BearingsCatalog Number Rope Diameter Cable Quantity & Diameter Sheave Material RWL Lbs.* A B C D W_____________________________________________________________________________________________________________________________1CS-81655R 1" 8 @ 3/8" Cast Iron 3600 34" 19" 18-15/16" 17-1/2" 7-3/8"_____________________________________________________________________________________________________________________________

2-2

1CD-61255R Upright Head Block

■ Change the “S” to “D” in the part number for double purchase head blocks.

Wire Guide Blocks■ Change the “R” suffix to “W” in thepart number for blocks with tieoffs for arbor guide wires.

Tieoffs■ Tieoffs for guided clew wires are also available.

Mounting HardwareMounting clips of various sizes are available for head blocks.Catalog No. Description________________________________________

070-38650 3/8" x 5" Welded Clip,1/2" toe, for 6 line head blocks (3/4" & 1" toe alsoavailable)

________________________________________

070-38850 3/8" x 6" Welded Clip,1/2" toe, for 8 line head blocks (3/4" & 1" toe alsoavailable)

Recommended Working LoadThe Recommended Working Load (RWL) is the maximum load which J.R.Clancy, Inc. recommends be applied to current, listed products which are in “like-new”condition and which have been properly installed, maintained, and operated. Impact loading is not taken into account. Care should be taken to avoid exceedingthese limits. For multiline blocks, the listed RWL is the maximum load that may be distributed over all of the grooves. See page 2-1.

*Consult us for RWL on double purchase blocks

ORDERING INFORMATION

Install blocks so mounting boltstouch the supporting structure onthe load side. This keeps blocksfrom shifting toward the load.

Tip!

Section 2Head Blocks, Upright—55 Series

1CD-61255R Upright Head Block


■ Change the “S” to “D” in the part number for double purchase head blocks.

Wire Guide Blocks■ Change the “R” suffix to “W” in thepart number for blocks, with tieoffs for arbor guide wires.

Tieoffs■ Tieoffs for guided clew wires are also available.

Mounting HardwareMounting clips of various sizes are available for head blocks.Catalog No. Description________________________________________

070-38650 3/8" x 5" Welded Clip,1/2" toe, for 6 line head blocks (3/4" & 1" toe also available)

________________________________________

070-38850 3/8" x 6" Welded Clip,1/2" toe, for 8 line head blocks (3/4" & 1" toe also available)

________________________________________

070-CA Pair of Mounting Anglesfor Underhung Blocks

■ Underhung style, normally supported by two structural beams■ ASTM Class 30 grey iron or Nylatron GSM sheave with machined grooves■ Equal pitch diameter on rope and cable grooves for smooth operation■ Tapered roller bearings■ Base angle legs turned in to allow close mounting centers■ 10 gauge side plates fully enclose sheave; 16" blocks have 7 gauge side plates■ Side plates are bolted and welded to the base angles for maximum strength■ Six spacers between the side plates; four prevent cables from escaping the sheave

grooves■ Underhung blocks may need to be welded to support beams after final alignment.

Consult the factory for specific information.

2-3

1CS-61259R Underhung Head Block

1CS-61259R Underhung Head Block


*Consult us for RWL on double purchase blocks


8-5/8" Diameter Sheaves—1" BearingsCatalog Number Rope Diameter Cable Quantity & Diameter Sheave Material RWL Lbs.* A B C E W_____________________________________________________________________________________________________________________________1CS-60859R 3/4" 6 @ 1/4" Cast Iron 900 32" 19" 11-7/16" 2-1/4" 5-3/8"_____________________________________________________________________________________________________________________________1CS-80859R 3/4" 8 @ 1/4" Cast Iron 900 32" 19" 11-7/16" 2-1/4" 6-3/8"_____________________________________________________________________________________________________________________________

12" Diameter Sheaves—1" BearingsCatalog Number Rope Diameter Cable Quantity & Diameter Sheave Material RWL Lbs.* A B C E W_____________________________________________________________________________________________________________________________1NS-61259R 3/4" 6 @ 1/4" Nylatron 2500 32" 17" 15" 2-5/16" 5-3/8"_____________________________________________________________________________________________________________________________1CS-61259R 3/4" 6 @ 1/4" Cast Iron 2500 32" 17" 15" 2-5/16" 5-3/8"_____________________________________________________________________________________________________________________________1NS-81259R 3/4" 8 @ 1/4" Nylatron 2500 32" 17" 15" 2-5/16" 6-3/8"_____________________________________________________________________________________________________________________________1CS-81259R 3/4" 8 @ 1/4" Cast Iron 2500 32" 17" 15" 2-5/16" 6-3/8"_____________________________________________________________________________________________________________________________

16" Diameter Sheaves—1-1/2" BearingsCatalog Number Rope Diameter Cable Quantity & Diameter Sheave Material RWL Lbs.* A B C E W_____________________________________________________________________________________________________________________________1CS-81659R 1" 8 @ 3/8" Cast Iron 3600 34" 19" 18-15/16" 2-3/8" 7-3/8"_____________________________________________________________________________________________________________________________

Section 2Head Blocks, Underhung—59 Series

To minimize wear and friction incables and grooves, fleet anglesmust not exceed 1-1/2º. Equipmentwill operate harder and havedecreased levels of safety athigher fleet angles.

Tip!


■ Underhung style, supported by a single structural beam■ Nylatron GS sheave with molded groove or ASTM Class 30 grey iron sheave with

machined grooves■ Sealed precision ball bearings (8" nominal only) or tapered roller bearings■ 10 gauge side plates■ 3/4" drawbolt and steel clip allow a 4" grip adjustment to accommodate a range of

beam sizes■ A minimum of three spacers between the side plates; two prevent cables from

escaping the sheave grooves

Cable Blocks—1/4” GrooveCatalog Line Sheave Sheave RWL Lbs. Bearing A B* B+ C D WNumber Diameter Material Diameter_____________________________________________________________________________________________________________________________2NC-10819R 1 8-1/2" Nylatron 500 17 mm 13-13/16" 2-1/16" 1-1/4" 12-1/4" 2-3/8" 2-3/16"_____________________________________________________________________________________________________________________________2CC-10819R 1 8-1/2" Cast Iron 500 17 mm 13-13/16" 2-1/16" 1-1/4" 12-1/4" 2-3/8" 2-3/16"_____________________________________________________________________________________________________________________________2CC-20819R 2 8-1/2" Cast Iron 500 17 mm 13-13/16" 2-1/16" 1-1/4" 12-1/4" 2-5/16" 2-3/16"_____________________________________________________________________________________________________________________________3CC-40819R 4 8-1/2" Cast Iron 700 1" 14-1/4" — — 13-3/8" 2-3/16" 3-7/16"_____________________________________________________________________________________________________________________________3CC-80819R 8 8-1/2" Cast Iron 700 1" 14-1/4" — — 13-3/8" 2-3/16" 5-1/8"_____________________________________________________________________________________________________________________________3CC-11219R 1 12" Cast Iron 675 1" 17-11/16" 5-5/8" 4-3/16" 17" 2-9/16" 2-7/8"_____________________________________________________________________________________________________________________________3CC-21219R 2 12" Cast Iron 675 1" 17-11/16" 5-5/8" 4-3/16" 17" 2-9/16" 2-7/8"_____________________________________________________________________________________________________________________________B*= 3/8" ThroatB+= 3/4" Throat

Rope Blocks—3/4” GrooveCatalog Line Sheave Sheave RWL Lbs. Bearing A B* B+ C D WNumber Diameter Material Diameter_____________________________________________________________________________________________________________________________2NR-10819R 1 8" Nylatron 500 17 mm 13-3/4" 2-1/16" 1-1/4" 12-1/4" 2-3/4" 2-3/16"_____________________________________________________________________________________________________________________________2CR-10819R 1 8" Cast Iron 450 17 mm 13-3/4" 2-1/16" 1-1/4" 12-1/4" 2-3/4" 2-3/16"_____________________________________________________________________________________________________________________________B*= 3/8" ThroatB+= 3/4" Throat


2-4

3CC-40819R Underhung Loft Block

2NC-10819U Underhung Loft Block

■ 1st character indicates bearing type:2 = Ball Bearings3 = Tapered Roller Bearings

■ All blocks listed with ball bearings maybe upgraded to tapered roller bearingsby changing the first digit to “3”.■ Last character indicates the throatsize. All blocks are available with 3/8"“R” or 3/4" “U” throats.■ R = 3/8" thick beam flangeBlocks have 4-1/4" to 8” grip■ U = 3/4" thick beam flange8" Blocks have 4-1/4"to 8-3/4" grip 12" Blocks have 5-1/2" to 10" grip


3CC-40819R Underhung Loft Block 2NC-10819U Underhung Loft Block

Section 2Loft Blocks, Underhung—19 Series

Don't over tighten the clip nutson “19 Series” blocks. It won’tincrease their holding power, butmay reduce the strength of theblocks.

Tip!


■ Upright and underhung styles normally supported by structural beams or channels■ Nylatron GS sheave or ASTM Class 30 grey iron sheave with machined grooves■ Sealed precision ball bearings or tapered roller bearings■ Side plates fully enclose sheave■ Seven spacers between the side plates; four prevent cables from escaping the sheave grooves■ Underhung blocks may need to be welded to support beams after final alignment.

Consult the factory for specific information.

Cable Blocks—1/4” GrooveCatalog Number Line Sheave Sheave RWL Bearing A B C D E W Side

Diameter Material Lbs. Diameter Plate_____________________________________________________________________________________________________________________________2NC-10855R 1 8-1/2" Nylatron 500 17 mm 20-1/4" 14-1/4" 11-1/2" 10-3/8" 2-5/8" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________2NC-10859S+ 1 8-1/2" Nylatron 500 17 mm 16-1/4" 10-3/4" 11-1/2" 10-3/8" 2-5/8" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________2CC-10855R 1 8-1/2" Cast Iron 700 17 mm 20-1/4" 14-1/4" 11-1/2" 10-3/8" 2-5/8" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________2CC-10859S+ 1 8-1/2" Cast Iron 700 17 mm 16-1/4" 10-3/4" 11-1/2" 10-3/8" 2-5/8" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________2CC-20855R 2 8-1/2" Cast Iron 700 17 mm 20-1/4" 14-1/4" 11-1/2" 10-7/16" 2-9/16" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________2CC-20859S+ 2 8-1/2" Cast Iron 700 17 mm 16-1/4" 10-3/4" 11-1/2" 10-7/16" 2-9/16" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________3CC-40855R 4 8-1/2" Cast Iron 1300 1" 32" 19" 11-7/16" 10-1/8" 2-1/4" 5-7/16" 10 ga_____________________________________________________________________________________________________________________________3CC-40859R 4 8-1/2" Cast Iron 900 1" 32" 19" 11-7/16" 10-1/8" 2-1/4" 5-7/16" 10 ga_____________________________________________________________________________________________________________________________3CC-80855R 8 8-1/2" Cast Iron 1300 1" 32" 19" 11-7/16" 10-1/8" 2-1/4" 5-3/8" 10 ga_____________________________________________________________________________________________________________________________3CC-80859R 8 8-1/2" Cast Iron 900 1" 32" 19" 11-7/16" 10-1/8" 2-1/4" 5-3/8" 10 ga_____________________________________________________________________________________________________________________________3CC-11255R 1 12" Cast Iron 700 1" 24" 14" 15" 13-11/16" 2-5/16" 4-3/4" 10 ga_____________________________________________________________________________________________________________________________3CC-11259R 1 12" Cast Iron 700 1" 24" 14" 15" 13-11/16" 2-5/16" 4-3/4" 10 ga_____________________________________________________________________________________________________________________________3CC-21255R 2 12" Cast Iron 1400 1" 24" 14" 15" 13-11/16" 2-5/16" 4-3/4" 10 ga_____________________________________________________________________________________________________________________________3CC-21259R 2 12" Cast Iron 1400 1" 24" 14" 15" 13-11/16" 2-5/16" 4-3/4" 10 ga_____________________________________________________________________________________________________________________________3CC-11655R 1 16" Cast Iron — 1-1/2" 26" 11" 18-15/16" 17-11/16" 2-3/16" 5-3/4" 7 ga_____________________________________________________________________________________________________________________________3CC-11659R 1 16" Cast Iron — 1-1/2" 26" 11" 18-15/16" 17-11/16" 2-3/16" 5-3/4" 7 ga_____________________________________________________________________________________________________________________________

Rope Blocks—3/4” GrooveCatalog Number Line Sheave Sheave RWL Bearing A B C D E W SP

Diameter Material Lbs. Diameter_____________________________________________________________________________________________________________________________2NR-10855R 1 8" Nylatron 500 17 mm 20-1/4" 14-1/4" 11-1/2" 10-7/16" 2-9/16" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________2NR-10859S+ 1 8" Nylatron 500 17 mm 16-1/4" 10-3/4" 11-1/2" 10-7/16" 2-9/16" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________2CR-10855R 1 8" Cast Iron 700 17 mm 20-1/4" 14-1/4" 11-1/2" 10-7/16" 2-9/16" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________2CR-10859S+ 1 8" Cast Iron 700 17 mm 16-1/4" 10-3/4" 11-1/2" 10-7/16" 2-9/16" 4-3/8" 12 ga_____________________________________________________________________________________________________________________________+ Change “S” (4" to 10" grip range) to “R” (9-1/2" to 16" grip range) for long base angles (20-1/4”)


2NC-10855R Upright Loft Block 2NC-10859R Underhung Loft Block

(Page 2-5 intentionally deleted from catalog) 2-6

2NC-10859R Underhung Loft Block

2NC-10855R Upright Loft Block

■ 1st character indicates bearing type:2 = Ball Bearings3 = Tapered Roller Bearings

■ All blocks listed with ball bearingsmay be upgraded to tapered rollerbearings by changing the first digit from “2” to “3”.

Mounting HardwareMounting clips of various sizes are available for loft blocks.Catalog No. and Description________________________________________

070-CP Clip package for 8" loft blocks with 4 each 3/8" x 4" J-bolts, 2each formed clips, 1 each u-clip, 4 each3/8" x 1-1/2" hex bolts, 1 each 3/8" x 3-1/2" hex bolt, 4 each 3/8" flat washer,and 4 each 3/8" serrated flange lock nuts.________________________________________

070-142 1/4" x 4-1/2" Formed Clip,1/2" toe, for 1 and 2 line loft blocks________________________________________

070-1450 1/4" x 5" Formed Clip,1/2" toe, for 12", single line loft block(3/4" & 1" toe also available)________________________________________

070-38650 3/8" x 5" Welded Clip,1/2" toe, for 8 line loft blocks (3/4" &1" toe also available)________________________________________

070-38850 3/8" x 5-1/2" Welded Clip,1/2" toe, for 4 line loft blocks (3/4" &1" toe also available)


Section 2Loft Blocks, Upright—55 & Underhung—59


Custom Blocks and SheavesCustom sheaves can be fabricated from cast iron, steel or Nylatron GSM to meet specialrequirements. An almost unlimited combination of groove types and sheave diametersare possible.

Custom blocks can be designed to meet special needs. Possibilities include specialsizes, materials, mounting configurations, bearings, shaft sizes, and multiple sheaves ina single block.

Call us for any special requirements.

2-7

■ 19 SeriesChange last digit of catalog number.“R” becomes “I” for 3/8" throat“U” becomes “V” for 3/4" throat

■ 59 Series“R” becomes “I” for 20-1/4" base“S” becomes “V” for 16-1/4" base


Loft Block Mounting Grip RangeStandard Clancy loft blocks are designed to accommodate a range of mounting configurationswithout the need for custom hole punching.

19 Series blocks grip the bottom flanges of beams. The blocks are made with twostandard side plates with a grip range detailed in the “Ordering Information” column onpage 2-4.

8 inch diameter, 55 and 59 Series blocks have base angles punched with holes andslots to accommodate a large range of mounting conditions. 855R and 859R blockshave a grip range of 9-1/2" to 16". 859S blocks have a grip range of 4" to 10".

Contact the factory for additional options.

Idler PulleysIdler pulleys may be added to underhung loft blocks to carry the weight of passing wireropes, reduce sag, and prevent rubbing against adjacent blocks. Assemblies contain oneor more 2-7/16" diameter plastic sheaves with ball bearings on a 1/4" diameter shaft.The idler pulley assembly is mounted to the side of the block housing.

Idler pulleys cannot carry line loads or act as deflectors or mule blocks. Werecommend that when using idler pulleys, the loft block closest to the head blockshould be a full size multi-line block with grooves for all of the lift lines. This ensuresthat fleet angle and other alignment stresses are not transferred to the idler pulleys.

Idler pulleys are available for all J.R.Clancy underhung loft blocks. Specify thenumber of idler sheaves required, and which side of the block they should be mounted.

2NC-10819I Underhung Loft Block with Idlers

Section 2Loft Block Options

Head blocks should be slightly (3-6 inches) offset from the battenand loft block location exceptwhen the loft blocks have idlersor multi-groove sheaves. In thatcase the head block first grooveshould be centered on the battenlocation.

Tip!


Underhung—19 Series+

Catalog Number Sheave Quantity Sheave Diameter RWL Width*_____________________________________________________________________________________________________________________________4NR-20819R 2 8" 600 3-7/8"_____________________________________________________________________________________________________________________________4NR-30819R 3 8" 900 4-7/8"_____________________________________________________________________________________________________________________________4NR-40819R 4 8" 900 6-3/8"_____________________________________________________________________________________________________________________________4NR-50819R 5 8" 900 7-13/16"_____________________________________________________________________________________________________________________________+ Last character indicates throat size. “R” = 3/8" and “U” = 3/4"

Underhung—24 Series & STETCatalog Number Sheave Quantity Sheave Diameter RWL Width*_____________________________________________________________________________________________________________________________4NR-20824R‡ 2 8" 600 4-11/16"_____________________________________________________________________________________________________________________________4NR-20824P‡ 2 8" 600 4-11/16"_____________________________________________________________________________________________________________________________4NR-30824P 3 8" 900 4-15/16"_____________________________________________________________________________________________________________________________4NR-40824P 4 8" 900 6-7/16"_____________________________________________________________________________________________________________________________4NR-50824P 5 8" 900 7-7/8"_____________________________________________________________________________________________________________________________‡ “R” = Underhung and “P” = Pivoting

Upright—55 SeriesCatalog Number Sheave Quantity Sheave Diameter RWL Width*_____________________________________________________________________________________________________________________________4NR-20855R 2 8" 600 4-11/16"_____________________________________________________________________________________________________________________________4NR-30855R 3 8" 900 4-15/16"_____________________________________________________________________________________________________________________________4NR-40855R 4 8" 900 6-7/16"_____________________________________________________________________________________________________________________________4NR-50855R 5 8" 900 7-7/8"_____________________________________________________________________________________________________________________________

* Except for width, all dimensions are the same as single line versions listed on previous pages.

■ Multi-sheave blocks are constructed in the same manner as loft blocks of the same series■ 55 Series blocks are constructed with the base angle legs are turned in to allow close

mounting centers■ Nylatron GS sheaves with molded grooves or ASTM Class 30 grey iron sheave with

machined grooves■ 17mm sealed precision ball bearings■ 12 gauge side plates located outside and between sheaves

2-8

■ The second character indicates sheavematerial:C = Cast IronN = Nylatron■ Change third character in the partnumber from “R” (3/4”rope) to “C” for1/4” cable■ Call for mounting hardware information

Recommended Working LoadThe Recommended Working Load (RWL) is the maximum load which J.R.Clancy, Inc. recommends be applied to current, listed products which are in “like-new”condition and which have been properly installed, maintained, and operated. Impact loading is not taken into account. Care should be taken to avoid exceedingthese limits. For multiline blocks, the listed RWL is the maximum load that may be distributed over all of the grooves. See page 2-1..


4NR-40819R Underhung Multi-Sheave Block—19 Series

4NR-50855R Upright Multi-Sheave Block—55 Series

Section 2Multi-Sheave Blocks—19, 24 & 55 Series

* Except for width, all dimensions are the same as single line versions listed in previous pages.


Cable Blocks—1/4" GrooveCatalog Line Sheave Sheave RWL* Bearing A B C E WNumber Diameter Material Diameter_____________________________________________________________________________________________________________________________5C2-10812C 1 8-1/2” Cast Iron 450 17 mm 14-1/2" 7-1/4" 4-1/16" 3" 10-1/2"_____________________________________________________________________________________________________________________________5C2-20812C 2 8-1/2” Cast Iron 450 17 mm 14-1/2" 7-1/4" 4-1/16" 3-1/8" 10-1/2"_____________________________________________________________________________________________________________________________5C3-40812C 4 8-1/2” Cast Iron 1025 1" 14-1/2" 7-1/4" 4-1/16" 2-15/16" 10-1/2"_____________________________________________________________________________________________________________________________5C3-80812C 8 8-1/2” Cast Iron 900 1" 14-1/2" 7-1/4" 4-1/16" 2-15/16" 10-1/2"_____________________________________________________________________________________________________________________________5C3-11212C 1 12" Cast Iron 700 1" 18" 4-1/2" 14" 3-5/16" 14"_____________________________________________________________________________________________________________________________5C3-21212C 2 12" Cast Iron 700 1" 18" 4-1/2" 14" 3-1/8" 14"_____________________________________________________________________________________________________________________________5C3-41212C 4 12" Cast Iron 2300 1" 18" 5-1/8" 14" 2-15/16" 14"_____________________________________________________________________________________________________________________________5C3-81212C 8 12" Cast Iron 1600 1" 18" 7-1/16" 14" 2-15/16" 14"_____________________________________________________________________________________________________________________________

■ Used to divert the cables around obstructions or change direction of travel■ ASTM Class 30 grey iron sheave with machined grooves■ Sealed precision ball bearings or tapered roller bearings■ 7 gauge side plates fully enclose sheave■ Base made from 8" structural steel channel■ Four spacers between the side plates prevent cables from escaping the sheave grooves

2-9

■ 3rd character indicates bearing type:2 = Ball Bearings3 = Tapered Roller Bearings

■ All blocks listed with ball bearings maybe upgraded to tapered roller bearingsby changing the third digit to “3”.■ Call for mounting hardware information

*RWL does not change when tapered roller bearings are used.



5C3-10812C—Mule Block

The mule block side plate furthestfrom the mounting steel mayrequire bracing under heavyloads. Refer to shop drawings orcall Clancy for details.

Tip!

Section 2Mule Blocks—12 Series

5C2-10812C Mule Block


Tension Floor Blocks■ Used as the return pulley for the handline in manual T-Bar type counterweight sets■ Minimum 40 lb. weight to properly tension the handline■ Kick tab permits easy re-adjustment of the block■ ASTM Class 30 grey iron sheave with machined groove for 3/4” rope■ Sealed precision ball bearings■ Steel shoes for added strength & grip■ Special shoe sizes available; consult factoryCatalog Number Sheave Diameter Set Centers_____________________________________________________________________________________________________________________________6CR-1015 10" 6" or 8"_____________________________________________________________________________________________________________________________6CR-1015U 10" Less Than 6" (specify centers)_____________________________________________________________________________________________________________________________6CR-1215 12" 6" or 8"_____________________________________________________________________________________________________________________________

Sliding Tension Blocks■ Used with manual fire curtains to provide proper tension in the handline■ ASTM Class 30 grey iron sheave with machined groove for 3/4" or 1” rope■ Tapered roller bearings■ Sheave "floats" on two 3/4" diameter rods■ Adjustable locking collar to limit sheave travelCatalog Number Sheave Diameter Rope Diameter Sheave Material A_____________________________________________________________________________________________________________________________6CR-1218 12" 3/4” Cast Iron 16"_____________________________________________________________________________________________________________________________6CR-1618 16" 1” Cast Iron 19"_____________________________________________________________________________________________________________________________

2-10

6CR-1015—Tension Floor Block 6CR-1218 Sliding Tension Block

6CR-1015 Tension Floor Block

6CR-1218 Sliding Tension Block

Clancy uses Grade 5 bolts, orbetter, with nylon insert lock nuts,serrated flange lock nuts, orheavy hex nuts and lock washers.We recommend using flat washersover all slotted holes.

Tip!

Section 2Floor Blocks, Tension & Automatic


Fixed Combination Floor Blocks■ Used with individual wire guided or T-Bar counterweight sets■ Economical, fixed floor block; usually used on sets with limited travel■ Rope lock (010-533R) and floor block in a single unit■ Nylatron GS sheave or ASTM Class 30 grey iron sheave, grooved for 3/4" rope■ Sealed precision ball bearings■ Incorporates tie off points for arbor guide wiresCatalog Number Sheave Diameter Sheave Material_____________________________________________________________________________________________________________________________6CR-118 8" Cast Iron_____________________________________________________________________________________________________________________________6NR-118 8" Nylatron_____________________________________________________________________________________________________________________________

Adjustable Combination Floor Blocks■ Used with individual T-Bar or wire guided counterweight sets■ Rope lock and floor block in a single unit■ ASTM Class 30 grey iron sheave, grooved for 3/4" rope■ Sealed precision ball bearings■ Incorporates tie off points for arbor guide wires■ Sheave position may be adjusted to properly tension the handlineCatalog Number Sheave Diameter Sheave Material_____________________________________________________________________________________________________________________________6CR-218 10" Cast Iron_____________________________________________________________________________________________________________________________6CR-418 12" Cast Iron_____________________________________________________________________________________________________________________________

Wire Guide Floor Blocks■ Used with wire guide locking rail■ Nylatron GS sheave or ASTM Class 30 grey iron sheave, grooved for 3/4" rope■ Sealed precision ball bearings■ 12 gauge side plates fully enclose sheave■ Additional spacers are provided for arbor guide wire attachmentCatalog Number Sheave Diameter Sheave Material_____________________________________________________________________________________________________________________________6CR-855M 8" Cast Iron_____________________________________________________________________________________________________________________________6NR-855M 8" Nylatron_____________________________________________________________________________________________________________________________

2-11

6NR-118 Fixed Combination Floor Block 6CR-218 Adjustable Combination Floor Block

6CR-118 Fixed Combination Floor Block

6CR-218 Adjustable Combination Floor Block

6NR-855M Wire Guide Floor Block

Do Not over tension wire guideson wire guided arbors or clews.Clancy recommends a maximumtension of 75 pounds per guide.

Tip!

Section 2Floor Blocks, Combination & Wire Guide


Single Purchase Arbors■ Used in T-Bar guided systems to hold counterweight that balances the batten load■ Arbor tops and bottoms are fabricated 1/4" steel weldments with a bolt and spacer for

handline termination■ Arbor tops are punched to accept 8 cables■ Two 3/4" steel arbor rods have three nuts at top and bottom. Each rod has a retaining

collar with thumbscrew■ 1/4"x 3" steel back bar, with two guide assemblies comprised of UHMW plastic shoes

and 3/16" steel backup plates■ 12 gauge steel spreader plate every 3 feet (minimum 2)■ 6" or 8" set centers are standard

Double Purchase ArborsSame as above, with the following additions:■ Arbor tops are fabricated from 1/2" steel, and contain an 8-1/2" diameter ASTM A48

grey iron sheave with equal pitch diameter rope and cable grooves, tapered roller bearings,and 7 gauge side plates

■ Arbor bottoms contain an 8" diameter ASTM A48 grey iron sheave grooved for 3/4" rope, with sealed precision ball bearings and 10 gauge side plates

Catalog Number Type Arbor Width Length* Set Centers_____________________________________________________________________________________________________________________________007-15x04 to 13 Single Purchase 4-3/8" 4'—13' 6" or 8"_____________________________________________________________________________________________________________________________008-615x06 to 13 Double Purchase, 6 Line 5-1/8" 6'—13' 6" or 8"_____________________________________________________________________________________________________________________________008-815x06 to 13 Double Purchase, 8 Line 6-1/16" 6'—13' 6" or 8"_____________________________________________________________________________________________________________________________

* Overall length is 8" longer than the nominal length for single purchase arbors or 14-3/8" for double purchase arbors.

007-15x04 Single Purchase Arbor 008-615x04 Double Purchase Arbor

■ Nominal arbor length is indicated by the last two digits of the catalog number.

■ Arbors are supplied with guide shoes for T-Bar or T-Channel guides.

■ Roller guides are available as an option.

■ Arbors 9 feet and longer are shipped disassembled and requirefield assembly.


2-12

007-15x04 Single Purchase Arbor

008-615x04 DoublePurchase Arbor

Section 2T-Bar Arbors—15 Series

Insert spreader plates betweencounterweights at 3 foot intervals.Lock stop collars at the top ofcounterweight stacks.

Tip!


007-85x04 Single Purchase Wire Guide Arbor

■ Nominal arbor length is indicated by the last two digits of the catalog number.


Single Purchase Arbors■ Used in wire guided systems to hold counterweight that balances the batten load■ Arbor tops and bottoms are fabricated 1/2" steel plates with 3/8" holes for guide wires

located on 15" centers■ Arbor tops have 7 gauge steel plates with holes for lift line terminations and bolt and

spacer for the handline termination■ Two 3/4" steel arbor rods have three nuts at top and bottom. Each rod has a retaining

collar with thumbscrew■ 12 gauge steel spreader plate every 3 feet (minimum 2)Catalog Number Type Arbor Width Length*_____________________________________________________________________________________________________________________________007-85x04 to 08 Single Purchase 4-3/8" 4'—8'_____________________________________________________________________________________________________________________________

* Overall length is 5-9/16" longer than the nominal length.

2-13

007-85x04 Single Purchase Wire Guide Arbor

Attach cables to arbor tops in apattern that minimizes twistingand allows the arbor to hangplumb. Start from the center of thearbor top and work out in bothdirections. Don't cross cables overeach other between the arbor andhead blocks.

Tip!

Section 2Wire Guide Arbors—85 Series


Lattice Track Arbors■ Lattice track systems are used for individual counterweight sets such as act curtains and

fire curtains■ Used in single purchase lattice track guided systems to hold the counterweight to

balance the batten load■ Arbor tops and bottoms are fabricated 1/2" steel plates with brass guides that engage

the lattice track■ Arbor tops have 3/16" steel plates with holes for lift line terminations and bolt and

spacer for the handline termination■ Two 3/4" steel arbor rods have three nuts at top and bottom. Each rod has a retaining

collar with thumbscrew■ 12 gauge steel spreader plate every 3 feet (minimum 2)Catalog Number Type Width Length*_____________________________________________________________________________________________________________________________007-84x04 to 08 Single Purchase 4-3/8" 4'—8'_____________________________________________________________________________________________________________________________* Overall length is 6" longer than the nominal length.

Lattice Track ■ Formed of two 2" x 2" x 1/4" angles opposing each other with 1/4" x 2" formed

brackets alternating front and back on 2' centers.■ Generally bolted flat to the wall and/or structure above.Catalog Number Type _____________________________________________________________________________________________________________________________012-5049R Track_____________________________________________________________________________________________________________________________012-8049R Bottom Bracket_____________________________________________________________________________________________________________________________012-8049S Bottom Bracket with Spring Bumper_____________________________________________________________________________________________________________________________

2-14

007-84x04 Single PurchaseLattice Track Arbor

012-5049R Lattice Track

012-8049R Bottom Bracket

012-8049S SpringBottom Bracket

007-84x04 Lattice Track Arbor

Section 2Lattice Track Arbors & Guides—84 Series

Clancy weights are notched onalternate corners. Reverse everyother counterweight in a stack toprovide finger grips when loadingweights.

Tip!

■ Specify distance from wall to center line of guides

■ Nominal arbor length is indicated by the last two digits of the catalog number



Rope Lock■ One piece malleable iron body■ Two iron cams grip rope with thumbscrew adjustment for 5/8"—1" rope■ 9" malleable iron handle for maximum comfort and strength. Integral hole for safety

padlock■ Vinyl coated oval locking ring■ Rubber bumper to quiet operation■ Locking version has auxiliary steel side plate holding a keyed plunger type lock to deter

unauthorized usageCatalog Number RWL pounds Type_____________________________________________________________________________________________________________________________010-533R 150 Standard_____________________________________________________________________________________________________________________________010-533L 150 Locking_____________________________________________________________________________________________________________________________

Counterweights■ Used in arbors to counterbalance the weight of the batten and scenery or lights■ Standard weights are flame cut steel; lead weights are available on special order■ Opposite corners have 45 degree notches to provide finger grips■ 13-3/4" length, with slotted ends for 3/4" diameter arbor rods spaced on 10" centersCatalog Number Width Nominal Thickness Nominal Weight_____________________________________________________________________________________________________________________________009-4x1 4" 1" 14 pounds_____________________________________________________________________________________________________________________________009-4x2 4" 2" 28 pounds_____________________________________________________________________________________________________________________________009-6x1 6" 1" 22 pounds_____________________________________________________________________________________________________________________________009-6x2 6" 2" 43 pounds_____________________________________________________________________________________________________________________________Order by total weight, not by piece.

2-15

009-4X1 Counterweight

010-533R Malleable Iron Rope Lock

010-533L Locking Rope Lock

Rope locks are designed to hold anominally balanced load. They arenot designed to stop a movingload or hold an excessively out ofbalance load while weight is beingadded or removed. If the arbor mustbe in a temporarily unbalancedcondition, tie off the arbor, or holdit with a capstan winch or block andfall. The maximum recommendedworking load for Clancy rope locksis within 150 pounds of neutralbalance because it’s difficult foroperators to control any greaterimbalance.

Tip!

Section 2Rope Locks & Counterweights


Locking rails support rope locks and the index cards used to identify sets. All Clancylocking rails have the following features:■ Rope locks and index cards are mounted on a 3"x 5"x 1/4" formed steel angle■ Built to withstand a 300 lb per linear foot up load (RWL)■ Numbered, plastic write-on erasable index cards included

T-Bar Locking Rail■ Mounts to the stage floor■ Mounting stanchions are located on 5' (maximum) centers and made from 1/2" x 3"

flat barCatalog Number Type Set Centers_____________________________________________________________________________________________________________________________011-538R6 Single Purchase 6"_____________________________________________________________________________________________________________________________011-538R8 Single Purchase 8"_____________________________________________________________________________________________________________________________011-538D6 Double Purchase 6"_____________________________________________________________________________________________________________________________011-538D8 Double Purchase 8"_____________________________________________________________________________________________________________________________

T-Bar Locking Rail—Gallery Mounted■ Mounts on the edge of a counterweight pit or gallery■ Mounting stanchions are located on 5' (maximum) centers and made from 2" steel

tubing with expanded metal mesh between the stanchionsCatalog Number Type Set Centers_____________________________________________________________________________________________________________________________011-558R6 Single Purchase 6"_____________________________________________________________________________________________________________________________011-558R8 Single Purchase 8"_____________________________________________________________________________________________________________________________

Wire Guide Locking Rail■ For use with wire guide sets■ Two angles are provided to support 855M floor blocks■ Two 2"x3"x1/4" angles are used as lower bumpers for counterweight arbors■ Mounting stanchions are located on 5' (maximum) centers and made from 1/2"x 3"

flat bar and 3" channelCatalog Number Type Set Centers_____________________________________________________________________________________________________________________________011-518R6 Single Purchase 6"_____________________________________________________________________________________________________________________________011-518R8 Single Purchase 8"_____________________________________________________________________________________________________________________________

2-16

Clancy index cards can be markedwith pencils, china markers,washable markers, etc. and cleanedwith soap and water or suitablecleaner. Don’t use permanent inkmarkers. When in doubt, try it outon the back of a card.

Tip!

Section 2Locking Rails

011-538R6 T-Bar Locking Rail,Single Purchase

011-558R6 T-Bar Locking Rail—Gallery

011-518R6 Wire Guide Locking Rail


T-Bar Guide System■ Used to guide counterweight arbors■ 6" and 8" centers are standard, 4-1/2" to 12" centers are available■ T-Bar systems supplied complete with required T-Bar, wall battens, stop battens, splice

bars, U-clips, wall knees, bolts, nuts and washers■ Vertical T's are pre-punched 1-1/2" x 1-1/2" x 3/16" steel members■ Horizontal wall battens & stop battens pre-punched 1-3/4" x 1-3/4" x 3/16" steel angle■ Optional 2"x 2" hardwood or hardwood with neoprene bumpers are available for

stop battensCatalog Number Description_____________________________________________________________________________________________________________________________012-1500 T-Bar Guide System, steel_____________________________________________________________________________________________________________________________

T-Channel™ Guide System■ Innovative, lightweight aluminum guide system for counterweight arbors■ Faster to install than steel T-Bar due to lighter weight, longer guide sections, and

reduced number of components■ Fast, easy alignment of parts using movable spring nuts in the T-Channels■ Wall batten locations are easily changed in field■ 6" and 8" centers are standard, 4-1/2" to 12" centers are available■ Systems are supplied complete with required T-Channel, wall battens, stop battens,

splices, wall knees, bolts, nuts and washers■ Horizontal wall battens & stop battens pre-punched 1-3/4" x 1-3/4" x 3/16" steel angle■ Optional 2" x 2" hardwood or hardwood with neoprene bumpers are available for

stop battensCatalog Number Description_____________________________________________________________________________________________________________________________012-1550 T-Channel Guide System, aluminum_____________________________________________________________________________________________________________________________

Outrigger Bracket■ Used to support outrigger battens in front of the T-Bar wall■ Use 015-67R Pipe Batten with these brackets to form the outrigger■ Outrigger battens are used to support index lights or act as a scenery bumper■ Use on 10' maximum centersCatalog Number Description_____________________________________________________________________________________________________________________________015-96 Outrigger Bracket_____________________________________________________________________________________________________________________________

Index Lights■ Used to light the locking rail, fly and loading galleries■ Provides even lighting for counterweight system operation with minimal light bleeding ■ Sockets located on 24" centers, and intended for use with 40W "A" lampsCatalog Number Description Length_____________________________________________________________________________________________________________________________015-151405 One Circuit 5 feet_____________________________________________________________________________________________________________________________015-151410 One Circuit 10 feet_____________________________________________________________________________________________________________________________015-251405 Two Circuit 5 feet_____________________________________________________________________________________________________________________________015-251410 Two Circuit 10 feet_____________________________________________________________________________________________________________________________

2-17

012-1550 Aluminum T-Channel Guide System

012-1500Steel T-Bar Guide System

015-96 —Outrigger Bracket

015-151405—Index Light

Section 2Guide Systems, Outrigger Brackets & Index Lights

Never lubricate arbor guide tees.Lubricant will collect dust andactually increase system friction.It's also messy for technicianswho work around the system anda hazard in case of fire.

Tip!


Pipe BattensBattens are made from seamless pipe and are supplied with a matte black finish. Battens upto 21 feet long are supplied as a single piece. Longer battens are complete with boltedinternal splice sleeves 18" long. 1-1/2" battens are furnished with safety yellow vinyl end caps.Catalog Number Description I.D. O.D. Weight (pounds/foot)_____________________________________________________________________________________________________________________________015-66R 1-1/4" Schedule 40 Batten 1.380" 1.660" 2.5_____________________________________________________________________________________________________________________________015-67R 1-1/2" Schedule 40 Batten 1.610" 1.900" 3_____________________________________________________________________________________________________________________________015-67H 1-1/2" Schedule 80 Batten 1.500" 1.900" 4_____________________________________________________________________________________________________________________________015-68R 2" Schedule 40 Batten 2.067" 2.375" 4_____________________________________________________________________________________________________________________________015-69R 2-1/2" Schedule 40 Batten 2.469" 2.875" 6_____________________________________________________________________________________________________________________________

Truss BattensTwo pipe ladder trusses are constructed from two 1-1/2" schedule 40 pipes with flat barspacers on 4' centers. Special constructions are available, consult factory.Catalog Number Description Weight (pounds/foot)_____________________________________________________________________________________________________________________________015-67T Two Pipe Truss Batten 7_____________________________________________________________________________________________________________________________

Batten End CapsBright yellow, 4" long soft vinyl end caps make battens easy to see and can reduceaccidents. Fit 1-1/2" battens. (Included on Clancy furnished 1-1/2" battens.)Catalog Number Description_____________________________________________________________________________________________________________________________015-BATCAP Batten End Cap_____________________________________________________________________________________________________________________________

Weight PipesUsed to hold the bottom of a cyclorama, or other curtain, taut. Joints are threaded andcoupled to minimize snagging in pipe pockets. Custom curves are available.Catalog Number Description I.D. O.D. Weight (pounds/foot)_____________________________________________________________________________________________________________________________015-64R 3/4" Galvanized Pipe 0.824" 1.050" 1.1_____________________________________________________________________________________________________________________________015-65R 1" Galvanized Pipe 1.049 1.315" 1.7_____________________________________________________________________________________________________________________________

Pipe ClampsSupplied with 3/8" x 1" hex bolts with lock nuts and a 5/8" hole for attachment of cable,chain or other fittings. Half clamps are 3/16" steel and full clamps are 12 gauge steel.Batten Size Half Clamp RWL pounds Full Clamp RWL pounds _____________________________________________________________________________________________________________________________1-1/4" 026-21X1.2 200 026-22X1.2 750_____________________________________________________________________________________________________________________________1-1/2" 026-21X1.5 200 026-22X1.5 750_____________________________________________________________________________________________________________________________2" 026-21X2.0 200 026-22X2.0 750_____________________________________________________________________________________________________________________________2-1/2" 026-21X2.5 200 026-22X2.5 750_____________________________________________________________________________________________________________________________

Cross Grid Connector AssemblyA right angle connector for assembling pipe grids. Pipes can be added or removed inplace and do not have to be slid in from the ends. The 1/8" steel base plate is equippedwith four U-bolts to hold 1-1/2" pipe. U-bolts are supplied with locknuts and washers.Catalog Number Description_____________________________________________________________________________________________________________________________015-100 Pipe Grid Cross Clamp_____________________________________________________________________________________________________________________________

3-1

015-67R Pipe Batten

026-21x1.5 Half Pipe Clamp

026-22x1.5 Full Pipe Clamp

015-100 Cross Grid Connector Assembly

Recommended Working LoadThe Recommended Working Load (RWL) is the maximum load which J.R.Clancy, Inc. recommends be applied to current, listed products which are in “like-new”condition and which have been properly installed, maintained, and operated. Impact loading is not taken into account. Care should be taken to avoid exceedingthese limits. Consult the factory for additional information.

Try to spread heavy loads evenlyon pipe battens. Heavy point loadsshould be placed near a batten liftline or bridled to spread the load.

Tip!

Section 3Battens & Pipe Clamps


Section 3Miscellaneous Rigging Hardware

Trim ChainA lift line termination allowing quick, safe, and economic attachment and adjustmentof a batten. Consists of 36" long 1/4" proof coil trim chain, a 1/4" load rated shackle,and a 3/8" x 2" safety bolt.Catalog Number Description RWL Pounds_____________________________________________________________________________________________________________________________015-1192 Trim Chain 750 _____________________________________________________________________________________________________________________________

Batten Trim ClampAllows quick batten trim adjustment with the least reduction in travel distance. Used onlywith 1-1/2" pipe battens.Catalog Number Description RWL Pounds_____________________________________________________________________________________________________________________________026-23x1.5 Batten Trim Clamp 700 _____________________________________________________________________________________________________________________________

TurnbucklesForged jaw and eye turnbuckles are used for batten trimming or for tensioning lines. Othertypes and sizes are available on special order.Catalog Number Description Manufacturer’s RWL Pounds_____________________________________________________________________________________________________________________________032-220J&E 5/16" x 4-1/2" Turnbuckle 800_____________________________________________________________________________________________________________________________032-221J&E 3/8" x 6" Turnbuckle 1,200_____________________________________________________________________________________________________________________________032-222J&E 1/2" x 6" Turnbuckle 2,200_____________________________________________________________________________________________________________________________032-223J&E 1/2" x 12" Turnbuckle 2,200_____________________________________________________________________________________________________________________________032-224J&E 5/8" x 6" Turnbuckle 3,500_____________________________________________________________________________________________________________________________

Beam ClampsUsed for attaching chains or lift lines to beams for dead hanging or guide wires. Completewith two 3/8" x 1" hex bolts with lock nuts, and a 1/4" round pin anchor shackle.Catalog Number Beam Clamp Grip Range RWL_____________________________________________________________________________________________________________________________015-698 3/8" Throat, will grip flanges from 4" to 8" 350 pounds_____________________________________________________________________________________________________________________________015-798 3/4" Throat, will grip flanges from 4" to 9" 350 pounds_____________________________________________________________________________________________________________________________

Floor Plate3"x 3" square, steel floor plate with forged eye. Used for terminating guide lines.Catalog Number Description RWL Pounds_____________________________________________________________________________________________________________________________016-97 Floor Plate 450 _____________________________________________________________________________________________________________________________

ChainCatalog Number Chain Description Manufacturer's Rated Load (lbs.)_____________________________________________________________________________________________________________________________022-250 1/4" Proof Coil Chain, Zinc Plated 1,250_____________________________________________________________________________________________________________________________022-312 5/16" Proof Coil Chain, Zinc Plated 1,900_____________________________________________________________________________________________________________________________022-375 3/8" Proof Coil Chain, Zinc Plated 2,650_____________________________________________________________________________________________________________________________

3-2

015-1192 Trim Chain

026-23x1.5 Batten Trim Clamp

032-221J&E Turnbuckle

015-798 Beam Clamp

016-97 Floor Plate


022-250 Proof Coil Chain


3-3

Anchor ShacklesScrew pin and round pin styles are available. The last character of the catalog numberdenotes the type. R= Round Pin; S= Screw PinCatalog Number Description Manufacturer's RWL Pounds_____________________________________________________________________________________________________________________________019-A0187R 3/16" 650_____________________________________________________________________________________________________________________________019-A0250R 1/4" 1,000_____________________________________________________________________________________________________________________________019-A0313R 5/16" 1,500_____________________________________________________________________________________________________________________________019-A0375R 3/8" 2,000_____________________________________________________________________________________________________________________________019-A0500R 1/2" 4,000_____________________________________________________________________________________________________________________________

Light Duty BlocksFor use in light duty applications such as supporting fire lines, these blocks offer 3" diametersteel sheaves with ball bearing and groove for up to 3/8" diameter line. The formed steelbase allows vertical or horizontal mounting.Catalog Number Description RWL Pounds_____________________________________________________________________________________________________________________________013-175 1 sheave, light duty block 50_____________________________________________________________________________________________________________________________013-275 2 sheave, light duty block 100_____________________________________________________________________________________________________________________________013-375 3 sheave, light duty block 150_____________________________________________________________________________________________________________________________

Cable Clew1/4" thick steel plate with holes for cable and drive line plus two guide spools. Catalog Number Description RWL_____________________________________________________________________________________________________________________________015-27x9 9 Line Clew 1500 pounds overall, 750 pounds maximum on any lift line_____________________________________________________________________________________________________________________________Guide wires are usually on 6-1/2" centers.

Operation Instruction SignsAdhesive backed signs designed for mounting near rigging equipment provide operationinstructions for manual counterweight sets or motorized sets. Available at no charge.Catalog Number Description_____________________________________________________________________________________________________________________________002-CTWSIGN Counterweight Operation Sign_____________________________________________________________________________________________________________________________002-WINSIGN Winch Operation Sign_____________________________________________________________________________________________________________________________

Zetex® BordersHeat resistant borders are used to shield lighting equipment from curtains and scenery.Borders are fabricated from Zetex Plus 1110 non-asbestos fabric.Catalog Number Description Colors_____________________________________________________________________________________________________________________________017-1204 Zetex Border Tan or Black_____________________________________________________________________________________________________________________________

Sash CordUsed for track operating lines and general utility.Catalog Number Description Catalog Number Description_____________________________________________________________________________________________________________________________029-6 3/16" Diameter #6 Sash Cord 029-12 3/8" Diameter #12 Sash Cord_____________________________________________________________________________________________________________________________029-8 1/4" Diameter #8 Sash Cord 029-8W 1/4" Diameter #8 Sash Cord, Wire Center_____________________________________________________________________________________________________________________________029-10 5/16" Diameter #10 Sash Cord 029-12W 3/8" Diameter #12 Sash Cord, Wire Center_____________________________________________________________________________________________________________________________

019-A0375R Round Pin, Anchor Shackle

013-175 Light Duty Pulley

015-27x9 Guided Cable Clew


Section 3Miscellaneous Rigging Hardware


Premium Manila RopeThe traditional theatrical rope for hand lines and “hemp” rigging. Manila, however, changeslength with temperature and humidity.

Multiline II™

A synthetic rope that handles like manila, feels better, yet weighs less and provides superiordurability and strength. Unlike manila, Multiline II does not change length with temperatureand humidity, so it does not require frequent adjustment. Recommended for all newinstallations and retrofits. Black and colors are available on special order.

Stage-Set X™

All the benefits of Multiline II plus even greater strength and a non-rotating construction. Ithas a parallel core of polyester fibre, wrapped in polyester tape and covered by a soft,braided polyester jacket. Black or colored jackets are available on special order.

Quick Ordering ReferenceRope Diameter Premium Manila (RWL) Lbs.* Multiline II (RWL) Lbs.* Stage-Set X (RWL) Lbs.*_____________________________________________________________________________________________________________________________

3/8" 027-375 121 028-375M 320 028-375X 460_____________________________________________________________________________________________________________________________1/2" 027-500 238 028-500M 580 028-500X 810_____________________________________________________________________________________________________________________________5/8" 027-625 396 028-625M 823 028-625X 1,250_____________________________________________________________________________________________________________________________3/4" 027-750 468 028-750M 1,054 028-750X 1,670_____________________________________________________________________________________________________________________________7/8" 027-875 693 028-875M 1,550 028-875X 2,300_____________________________________________________________________________________________________________________________1" 027-1000 810 028-1000M 1,870 028-1000X 3,200_____________________________________________________________________________________________________________________________

* Manufacturer's Recommended Working Loads

Pin Rails & Belaying PinsPin rails are designed to allow the user to insert belaying pins to tie-off rope rigging. Thepin rail is made of 3-1/2" pipe with holes for belaying pins on 12" centers supported by4" channel legs. Double pin rails have two pipes so that non-moving pieces may be tiedoff to one pipe and the other used for the active sets.Catalog Number Description_____________________________________________________________________________________________________________________________015-520R Single Pin Rail_____________________________________________________________________________________________________________________________015-520D Double Pin Rail_____________________________________________________________________________________________________________________________015-249 21" Wooden Belaying Pin, 1-5/32" Diameter_____________________________________________________________________________________________________________________________015-449 Steel Belaying Pin, 1-1/16" Diameter_____________________________________________________________________________________________________________________________

SandbagsBallistic nylon construction, forged safety snap, and Velcro™ closure. Dry sand (notsupplied) can be added or removed to accurately balance a load.Catalog Number Description_____________________________________________________________________________________________________________________________015-5096 50 lb. Sandbag_____________________________________________________________________________________________________________________________015-10096 100 lb. Sandbag_____________________________________________________________________________________________________________________________015-15096 150 lb. Sandbag_____________________________________________________________________________________________________________________________

027-750 Manila Rope

028-750M Multiline II

3-4

028-750X Stage-Set X

015-520R and 015-249 Pinrail w/Belaying Pins

Choosing The Right Rope.1. Manila rope is economical but

relatively weak, wears quickly, and isaffected by moisture, age, and light. Itgives off slivers and unwinds, becauseof its twisted construction, when usedas a single point spotline.

2. Multiline II® is stronger, imperviousto moisture and light, and does not give off slivers.

3. Stage-Set-X has all the properties ofMultiline II and is stronger. Its braidedconstruction is easier on the hands and will not unwind when used as aspotline.

Tip!

Section 3Rope & Rope Rigging


Mobile Capstan WinchMobile capstan winches are used to pull out of balance counterweight arbors down forloading. Fully self contained, the winch has an integral motor, brake, capstan drum,starter, and Up/Down push button controls. The base has fixed and swivel casters for easypositioning, and a front lip to engage a reaction bar in the locking rail or floor. Winchesinclude 100' of 1" Multiline II rope with a forged safety hook. Catalog Number Description Capacity Speed_____________________________________________________________________________________________________________________________018-416 Mobile Capstan Winch 1,500 lb. 35 fpm_____________________________________________________________________________________________________________________________

3-5

Section 3Capstan Winch

018-416 Mobile Capstan Winch

Three Ways To Trim A Batten:1. A trim chain at the end of each lift

line provides several inches of fast adjustment. Always use a safety bolt after final trimming is done.

2. Full pipe clamps and J&E drop forged turnbuckles on lift lines provide high strength and very accurate adjustment over a limited adjustment range. Safety wire the turnbuckles after adjustments are finished.

3. Batten trimmers have a low profile above the batten and permit a great deal of batten trim adjustment at the expense of additional hardware mounted along the batten and a limited recommended working load.

Tip!


Wire Rope7x19 Galvanized Aircraft Cable is the most commonly used wire rope for theatricalrigging. Other types of wire rope are available for special applications. Please call.

Crosby® Forged Cable ClipsUsed in conjunction with a thimble to form a loop at the termination of a cable. Theefficiency rating of a properly prepared assembly is 80% of the catalog breaking strengthof the wire rope. Crosby cable clips have forged bases. See Section 5 for number of clipsrequired on different sizes of wire rope. Clips are galvanized.

ThimblesUsed to form an eye at the end of a wire rope to prevent deformation and damage to thewire rope. Thimbles are galvanized.

Nicopress® SleevesUsed for cable terminations, these oval compression sleeves have an efficiency rating of 100%of the catalog breaking strength of the wire rope. Nicopress sleeves must be installed usingthe proper Nicopress hand or hydraulic tool. Catalog numbers ending with “N” are copperoval sleeves for forming loops in cables. Copper stop sleeves are also available for use oncable ends inside drums, etc. Change the last character of the catalog number from a “N”to an “S”. The use of aluminum sleeves is not recommended.

Quick Ordering ReferenceCable Diameter Aircraft Cable Cable Breaking Strength* Cable Clip Thimble Nicopress_____________________________________________________________________________________________________________________________

1/8" 020-125 2,000 lb 021-125C 023-125C 025-125N_____________________________________________________________________________________________________________________________3/16" 020-187 4,300 lb 021-187C 023-187C 025-187N_____________________________________________________________________________________________________________________________1/4" 020-250 7,000 lb 021-250C 023-250C 025-250N_____________________________________________________________________________________________________________________________5/16" 020-312 9,800 lb 021-312C 023-312C 025-312N_____________________________________________________________________________________________________________________________3/8" 020-375 14,400 lb 021-375C 023-375C 025-375N_____________________________________________________________________________________________________________________________1/2" — — 021-500C 023-500C —_____________________________________________________________________________________________________________________________5/8" — — 021-625C 023-625C —_____________________________________________________________________________________________________________________________

* Manufacturer's Minimum

Nicopress Tools®

Hand tools for crimping Nicopress sleeves. Tools come with a gauge for testing completedconnections. Other tools are available.Catalog Number Description_____________________________________________________________________________________________________________________________025-51MJ Nicopress hand tool for 1/8" oval or stop, and 3/16" stop_____________________________________________________________________________________________________________________________025-51M850 Nicopress hand tool for 1/8" oval sleeves_____________________________________________________________________________________________________________________________025-51X850 Nicopress hand tool for 3/16" oval sleeves_____________________________________________________________________________________________________________________________025-3F6950 Nicopress hand tool for 1/4" oval or stopsleeves_____________________________________________________________________________________________________________________________

020-250 Wire Rope

021-250C Cable Clips

023-250C Thimble

025-3F6950 Nicopress Tool

025-250N Nicopress Oval Sleeve

025-250S Nicopress Stop Sleeve

3-6

Forged cable clips and coppercompression sleeves arerecommended for use inperformance rigging under USITT “Standard for Rigging andStage Machinery Wire RopeTerminations”. Malleable cableclips are not recommended.

Tip!

Section 3Wire Rope & Fittings


Section 3Curtain Tracks

3-7

Straight Traveler Tracks■ 14 gauge galvanized steel box track in 20' sections■ Manual or motorized operation■ Can be used for bi-parting (traveler) or one way operation■ Choice of several carrier wheel/body types■ Carriers for heavy duty track have ball bearings■ Carriers equipped with swivel and trim chain (chain on 280 tracks only) for

hanging curtain■ Carriers for heavy duty track have rubber bumpers to reduce noise■ Optional back packing operation eliminates on stage bunching while opening■ Tracks are supplied complete with all necessary accessories, including master carriers,

one individual carrier per foot, live and dead-end pulleys, end stops, hanging clamps, operating line, and adjustable floor pulley

Heavy Duty Stage Tracks—2-1/2" x 2-3/4" Steel ChannelCatalog Number Carrier Material: Wheel/Body End Pulley Diameter Floor Pulley Diameter Operating Line Diameter_____________________________________________________________________________________________________________________________024-280 Polyethylene/Nylon 3-1/4" 3-1/4" 3/8"_____________________________________________________________________________________________________________________________024-281 Neoprene/Steel 3-1/4" 3-1/4" 3/8"_____________________________________________________________________________________________________________________________024-282 Nylon/Steel 5" 5" 3/8"_____________________________________________________________________________________________________________________________024-283R Neoprene/Steel 8" 8" 1/2"_____________________________________________________________________________________________________________________________024-283N Nylon/Steel 8" 8" 1/2"_____________________________________________________________________________________________________________________________

Medium Duty Stage Tracks—2-1/2" x 2-3/4" Steel ChannelCatalog Number Carrier Material: Wheel/Body End Pulley Diameter Floor Pulley Diameter Operating Line Diameter_____________________________________________________________________________________________________________________________024-170 Polyethylene/Steel 1-13/16" 3-1/4" 1/4"_____________________________________________________________________________________________________________________________024-171N Nylon/Steel 1-13/16" 3-1/4" 1/4"_____________________________________________________________________________________________________________________________024-171R Neoprene/Steel 1-13/16" 3-1/4" 1/4"_____________________________________________________________________________________________________________________________024-172 Polyethylene/Steel 2-1/4" 3-1/4" 5/16"_____________________________________________________________________________________________________________________________

I-Beam Tracks—Straight & Curved■ 11 gauge Extruded aluminum track in 20' sections■ Intermediate rib on track adds strength and prevents tilting or climbing of carriers■ Walk along, manual or motorized operation■ Can be used for bi-parting (traveler) or one way operation■ Carriers have steel bodies and nylon wheels with ball bearings■ Carriers have rubber bumpers to reduce noise■ Tracks are supplied complete with all necessary accessories, except curved 140 track

which may require spindles and idlers. (call us for details)Catalog Number Description_____________________________________________________________________________________________________________________________024-140 Curved track for manual or motorized operation, with pulleys and cord_____________________________________________________________________________________________________________________________024-141 Straight track for manual or motorized operation, with pulleys and cord_____________________________________________________________________________________________________________________________024-142 Walk along track, no pulleys or cord supplied, may be curved on site_____________________________________________________________________________________________________________________________A complete range of other tracks, curtain machines, and accessories can be supplied.

Keep your stage clean and neat.Since actors and technicians mustmove about stages which areoften dark, or nearly so. Trippingis a very real hazard when objectsare scattered on the floor.

Tip!

024-280 Heavy Duty Traveler Track

024-141 I-Beam Track


J.R.Clancy fire safety curtains provide a barrier between the stage and auditorium in theevent of a fire. The barrier prevents the heat, smoke, and flame from a fire on stage fromaffecting the audience while the auditorium is evacuated.

ZetexPlus®

J.R.Clancy fire curtains are made with ZetexPlus® fabric. This fabric was designed as anasbestos replacement, providing a superior barrier to heat, smoke and flame while using anon-carcinogenic fabric. ZetexPlus 1210 was specifically developed to meet requirementsof the Uniform Building Code (UBC) since 1991.

Zetex fabric is woven using a highly texturized silica-based yarn. The finished cloth isthen coated with a proprietary treatment that adds to its heat resistance and durability.The special coating makes ZetexPlus unique, as it enables the fabric to conduct heatradially along the fabric surface rather than through the fabric. This feature, along withthe high mechanical strength of the yarn, eliminates the need for wire reinforcement inmost cases. This fabric provides high tensile strength and excellent resistance to abrasion,flame, and sparks.

ZetexPlus doesn’t generate significant smoke or fumes when exposed to flames. Thefabric has a zero generated smoke rating.California State Fire Marshall Listed

Curtains made of ZetexPlus style 1210 ZP material are listed and approved by theCalifornia State Fire Marshall (Listing No. 1670-1164:100) for use as Proscenium FireProtection Curtains per the Uniform Building Code Standards 6-1 (1991 Edition).Local Requirements

Local building codes vary widely. Before selecting the fabric and curtain construction details,please consult your local building code officials.

Physical Properties of FabricStyle 1210ZP 1210ZP w/wireConstruction 12x7 10x8Weight (oz/yd2) 40 40Thickness (inches) .070 .070Weave Plain Plain

Breaking Strength (lbs/in minimum)Warp 500 500Fill 425 425

Flame Spread 5 5Smoke Density 0 0

Properties of Zetex Filament YarnPhysicalSpecific Gravity 2.54Moh Hardness 6.5Coefficient of Friction with Glass 1.0Moisture Absorbency (surface) up to 0.3%Moisture Regain noneMelting Temperature 2050-2160˚F

MechanicalTensile Strength (psi) @ 72˚F 500,000

@ 700˚F 380,000@ 1000˚F 250,000

Tensile Modulus of Elasticity (psi @ 72˚F) 10.5x106Elongation at break (%) 4.8Elastic Recovery (%) 100

4-1

Lay a clean drop on the stage floorbefore unfolding the fire safetycurtain. It will be hard to removedirt from the curtain withoutdamage to it. A plastic drop willmake the curtain slide easier.

Tip!

Section 4About Our Fire Safety Curtains


Types of Fire Safety CurtainsJ.R.Clancy fire safety curtains are available in configurations for all conditions. Two of themost common types are described, with drawings showing typical layouts and components.

Straight Lift Fire Safety CurtainThe most straightforward design, used when the available space is more than twice theproscenium height. This system uses a counterweight set to balance the weight of thecurtain. Motorization is possible using a traction drive winch in place of the head block.The drawing shows a free end ball release system.

4-2

Straight Lift Fire Curtain

Smoke Pocket

Dashpot

Loft BlockHead Block

Lattice Track

Fireline

Safety Chain

Line Weight

Hand Line

Counterweight Arbor

Pull Ring Release & Sign

Fireline Floor Block

Floor Block

Lift Line

Pipe Batten

Sure-Guard

Turnbuckle

Fireline PulleyFusible Link

Batten Clamp

Clancy recommends that firecurtains be closed when a theatreis not in use. This restricts accessto the stage, prevents accidents,and may reduce damage in caseof a fire on stage or in theauditorium. Routine use alsoensures that the curtain remainsfunctional in case it is needed.

Tip!

Section 4Straight Lift Fire Safety Curtains


Brail Type Fire Safety CurtainsUsed when the space above the proscenium is as small as half (or even less) the height ofthe proscenium opening. This type of curtain is not counterweighted, but is operated by abrail fire curtain winch. Both manual and powered winches are available.

Other Types of Fire Safety CurtainsTrip type, rigid and semi-rigid fire curtains are available to meet the requirements ofgoverning codes and the needs of very large or unusual spaces. Tell us what you need.

4-3

Brail Fire Curtain

Pull Ring Release & Sign

Smoke Pocket

Hydraulic Brail Winch

Head Block

Fireline

Safety Chain

Sure Guard

Round Weight Arbor & Guard

Lift Line

Pipe Batten

Loft Block

Fireline Pulley

Fusible Link

Guided Clew

Batten Clamp

Drive Line

Fire curtains should be tested every3 months and inspected annually.

Tip!

Section 4Brail Type Fire Safety Curtains


Smoke SealSmoke seals consist of a zetex fabric flap and metal bracket that attaches to the prosceniumwall and seals the gap between the wall and fire curtain.

Fire Safety Curtain Release SystemsIn order to provide automatic closing, a release system is required. There are several types ofrelease systems available, all using a wire rope or manila fire line. The fire line is normallyheld in tension by round weights and contains six fusible links. When the line separates,the release system is activated, causing the curtain to close.

For counterweighted straight lift curtains, the release system provides automatic operationof the curtain by making the curtain heavier than the counterweight so that the out ofbalance weight causes the curtain to close. A hydraulic dashpot may be used to brake thecurtain at the end of its descent.

Free End Ball SystemThe most basic of release systems, this requires that the curtain be heavier than thecounterweight at all times. The free end of the fire line is looped around the curtain’s handline in such a way that the fire line is holding the out of balance weight of the curtain. Whenthe fire line goes slack the loop falls off of the hand line, allowing the curtain to close.

Overbalance Bar SystemIn this system the curtain and counterweight are balanced, so that the curtain can beraised and lowered manually with a minimum of effort. A weighted bar is held above theupper batten of the fire safety curtain by a hinged mechanism. When the fire line isreleased, the hinged mechanism opens so that the weighted bar slides down the center liftlines until it rests on the curtain’s upper batten. This makes the curtain heavier than thecounterweight and causes it to close.

Trigger Release SystemThis system also permits the fire curtain to be in balance, so that it may be raised andlowered manually like a normal counterweighted set. When an over balance weight andcatch carriage with their own lattice track are used, a 3/8” cable goes from the catchcarriage, over the head block and attaches to the top of the main arbor. Therefore, theweight of the catch carriage is pulling up on the main arbor. The fire line engages a triggerthat holds the over balance weight in the stored position. Releasing the fire line allows theover balance weight to descend onto the catch carriage, making the system curtain heavy.The fire curtain then closes. The trigger is designed to reset by raising the fire curtain a fewinches above its normal high trim setting.

4-4

Overbalance bars, trigger arbors,and traction drive head blocks allpermit the fire safety curtain tobe actively used as a drop to closethe proscenium opening.

Tip!

Section 4Fire Safety Curtain Release Systems

016-SEAL Smoke Seal


Sure-Guard™ ReleaseJ.R.Clancy’s Sure-Guard allows fire alarm systems, rate of rise detectors, smoke detectorsor other electrical signals to release the fire curtain. In response to a change in the status ofthe electrical contacts, the Sure-Guard's electro-mechanical mechanism releases tension inthe fire line, allowing the fire safety curtain to close. The release mechanism may be attachedto the fire line at any point and does not interfere with other release mechanisms.

The Sure-Guard relay contains an integral battery and charger to provide emergencypower during interruptions and is switchable to run on different voltages.Catalog Number Description_____________________________________________________________________________________________________________________________016-970 Sure-Guard Release System_____________________________________________________________________________________________________________________________

Motorized Fire Curtain WinchWinches with a traction drive head block may be used to motorize counterweightedstraight lift fire curtains. The system must be curtain heavy. V-grooves in the head blockdrive the lift line cables to open and close the curtain during normal operation.

The winch is equipped with a clutch between the gearbox and the traction head block.The clutch lever arm is held engaged by the fire line. When the fire line is released, theclutch is disengaged, allowing the head block to freewheel so that the curtain closes.Catalog Number Description Capacity Speed When Powered_____________________________________________________________________________________________________________________________016-1TW Fire Curtain Traction Winch 1,000 lb. 25 fpm_____________________________________________________________________________________________________________________________016-2TW Fire Curtain Traction Winch 2,000 lb. 25 fpm_____________________________________________________________________________________________________________________________

Brail Fire Curtain WinchA hand crank or motorized winch for operating brail fire safety curtains. The drum issupplied with 75' of 5/16" drive cable that is connected to the lift lines using a clew.The curtain is held in place by a caliper disk brake or clutch held engaged by the fireline. The winch is equipped with an adjustable hydraulic speed governor that controlsthe curtain's speed during its descent.Catalog Number Description Capacity Operation_____________________________________________________________________________________________________________________________016-430H Manual Brail Winch 800 lb. Manual Hand Crank_____________________________________________________________________________________________________________________________016-430P Powered Brail Winch 1,000 lb. Motorized _____________________________________________________________________________________________________________________________

4-5

016-970 Sure-Guard Release

016-1TW Motorized Fire Curtain Winch

016-430H Brail Fire Curtain Winch

Use the first counterweightedstage batten to help raise the firecurtain during installation so itcan be attached to the fire curtainlift lines.

Tip!

Section 4Sure-Guard™ Release & Fire Curtain Winches


Smoke PocketsSmoke pockets serve a dual purpose, both sealing the sides of the curtain to prevent thepassage of smoke and housing the guides at the curtain’s side edges. The pockets areformed from 1/4" steel plate in 5' and 10' lengths. Pockets are 6" or 8" deep with an 18"width. All connections are bolted for serviceability. Sections anchor to the building with1/2" bolts or anchors on 4 ' centers.

Versions for track guided curtains contain 14 gauge, galvanized steel C-section tracksthat mate with 016-370 roller guides. Catalog Number Description_____________________________________________________________________________________________________________________________016-106005 6" Deep x 5' high Smoke Pocket_____________________________________________________________________________________________________________________________016-106010 6" Deep x 10' high Smoke Pocket_____________________________________________________________________________________________________________________________016-108005 8" Deep x 5' high Smoke Pocket_____________________________________________________________________________________________________________________________016-108010 8" Deep x 10' high Smoke Pocket_____________________________________________________________________________________________________________________________016-106T05 6" Deep x 5' high Smoke Pocket with track for roller guided curtain_____________________________________________________________________________________________________________________________016-106T10 6" Deep x 10' high Smoke Pocket with track for roller guided curtain_____________________________________________________________________________________________________________________________

Curtain GuidesCurtain guides are used on the edges of fire safety curtains and other curtains to guide thecurtains along tensioned wire ropes or in tracks. This reduces the bowing from unequalpressure on the opposite sides of the curtain. Bronze guides are traditional, and arenecessary for fire safety curtains. The ultra-high molecular weight (UHMW) plastic guidesare lighter in weight and quieter in operation. Roller guides are used with tracks for heavierduty applications.Catalog Number Description_____________________________________________________________________________________________________________________________016-170 Curtain Guide, Bronze Spool_____________________________________________________________________________________________________________________________016-171 Curtain Guide, UHMW Spool (Not for Fire Safety Curtain Use)_____________________________________________________________________________________________________________________________016-370 Curtain Guide, Steel Rollers (Requires steel hem reinforcement)_____________________________________________________________________________________________________________________________

Hydraulic DashpotsA hydraulic dashpot is used to brake the fall of a straight lift fire safety curtain in the lastfew feet of travel. The use of a dashpot is essential on larger curtains to reduce the speedand impact of the curtain at the end of its travel.

The dashpot is rigged in a double purchase arrangement with a cable that is snatchedby the fire curtain arbor when the curtain is nearing the floor. The dashpot cable pulls onthe sheave at the top of the piston rod in the hydraulic cylinder. A fluid flow adjustingvalve is used to provide the appropriate retarding force on the piston, braking the descentof the curtain. Hydraulic oil is automatically released to return the unit to an “at restcondition” when the curtain is raised.Catalog Number Description_____________________________________________________________________________________________________________________________016-410L 5 foot stroke dashpot, (10 foot curtain travel) heavy duty for use with large or steel framed curtains_____________________________________________________________________________________________________________________________016-411L 5 foot stroke dashpot, normal duty for use with most straight lift curtains_____________________________________________________________________________________________________________________________

4-6

016-106005 Smoke Pocket

016-170 Curtain Guide, Bronze Spool

016-370 Curtain Guide, Steel Rollers

016-171 Curtain Guide, UHMW Spool

016-411L Hydraulic Dashpot

Section 4Smoke Pockets, Curtain Guides & Dashpots


Round Weights, Arbors and GuardsRound weights are used to tension fire lines, dashpot cables and overbalance clutch levers.Each weight is 5 lbs. Round weight arbors are used to hold 1 to 10 round weights, whilethe arbor guard protects personnel from the arbor.Catalog Number Description_____________________________________________________________________________________________________________________________016-8 Round Weight Arbor_____________________________________________________________________________________________________________________________016-9 Round Weight (5 lb)_____________________________________________________________________________________________________________________________016-13 Round Weight Arbor Guard_____________________________________________________________________________________________________________________________

Free End Ball and Line WeightThe free end ball is used on the free end of the fire line to lock it around the arbor handline. Line weights help the fire line fall free of the arbor line when released.Catalog Number Description_____________________________________________________________________________________________________________________________016-10 Line Weight (2 lb)_____________________________________________________________________________________________________________________________016-26 Free End Ball_____________________________________________________________________________________________________________________________

Fusible LinkPlaced in the fire line. Fusible links are designed to melt at a temperature of 165˚F (74˚C).UL Listed.Catalog Number Description Manufacturer’s RWL_____________________________________________________________________________________________________________________________016-7519 Fusible Link 40 pounds_____________________________________________________________________________________________________________________________

Electro Thermal LinkUsed to connect the fire curtain system to fire alarms or other electrical systems. Theelectro thermal link melts when electricity is applied. UL Listed.Catalog Number Description_____________________________________________________________________________________________________________________________016-ETL Electro Thermal Link_____________________________________________________________________________________________________________________________

Fire Line Release and SignA hand operated method of releasing the fire line. A sign should be placed at each pullring release. The sign reads “In Case of Fire Pull Ring To Lower Safety Curtain”.Catalog Number Description_____________________________________________________________________________________________________________________________016-12R Fire Sign, Pull Ring_____________________________________________________________________________________________________________________________016-14R Fire Line Release, Pull Ring_____________________________________________________________________________________________________________________________

4-7

016-8 Round Weight Arbor

016-10 Line Weight

016-ETL Electro Thermal Link

016-14R Fire Line Release

016-26 Free End Ball

016-13 RoundWeight ArborGuard

016-9 Round Weight

016-7519 Fusible Link

Section 4Fire Line Hardware


5-1

Safety Adds Value to J.R. Clancy ProductsFrom the very beginning, one of the most important hallmarks of J.R.Clancy has been safety.We build it into every one of our products using quality engineering, high-grade materialsand scrupulous attention to detail.

J.R.Clancy people are active in industry work groups dealing with rigging safety, as wellas setting safety standards. The company itself features a landmark component—our specialsix-story tower built expressly for developing and testing new products in real-worldsituations. The recommended load ratings throughout this catalog are another symbol ofour continuing commitment to testing new methods and materials aimed at improvingefficiency and safety.

The following charts and tables list some of the service factors used by us when designingequipment and setting recommended working loads. They also provide easy access to datafrequently needed when installing and operating theatrical rigging.

Finally, we’ve provided a glossary of special rigging terms.

Minimum Service FactorsIn order to establish minimum standards of safety, the following factors are suggested byJ.R.Clancy for use in rigging systems.Fleet Angles Sheaves 1-1/2º

Drums 2º_____________________________________________________________________________________________________________________________Cables & Fittings 1/8 of Ultimate Tensile Strength_____________________________________________________________________________________________________________________________Bolts & Nuts 1/8 of Ultimate Tensile Strength_____________________________________________________________________________________________________________________________Bearings Maximum load with L10 Life of 2000 hours at a line speed of 300 FPM_____________________________________________________________________________________________________________________________D/d Ratios See Chart of Ratios listed on next page_____________________________________________________________________________________________________________________________Tread Pressures Cast Iron 500 Psi

Steel 1000 PsiNylatron® 900 Psi_____________________________________________________________________________________________________________________________

Steel 1/5 of Yield Strength_____________________________________________________________________________________________________________________________Shafts 1/8 of Ultimate Shear Strength Bearing Pressure = 90% of Yield_____________________________________________________________________________________________________________________________Welds 1/8 of Ultimate Tensile Strength _____________________________________________________________________________________________________________________________Gearmotors Mechanical Strength Service Factor 1.25:1—AGMA Standards include factors which may reduce the allowable strength

Thermal Service Factor 1.00_____________________________________________________________________________________________________________________________Motor Brakes Twice full load motor torque_____________________________________________________________________________________________________________________________

Recommended Working LoadsRecommended Working Loads (RWL’s) are listed in this catalog for many blocks of standard design and construction. Ratings are for blocks mounted using standard design and construction.Ratings are for blocks mounted using standard hole spacing and Clancy mounting hardware inan approved manner. Data is based on correctly sized cables wrapped 90 degrees around thesheaves as shown on the outline drawings, except for mule blocks that assume 180 degrees ofcable wrap. Contact J.R.Clancy if ratings are required for other conditions.

This data is based upon our current knowledge andpractice and is intended to provide generalinformation. It should not, therefore, be construedas guaranteeing specific properties or suitability fora particular application.

Section 5Service Factors

In addition to in house testing,we’re committed to an on-goingprogram of product testing at thelaboratories of Intertek TestingServices. Intertek is one of theworld’s leading laboratories.

Safety wire all turnbuckles afteradjustment to prevent unwindingunder load. The procedure consistsof winding a wire through the bodyof the turnbuckle and the eye orjaw at each end and twisting theends together. Clancy does notrecommend the use of lock nutson turnbuckles because they canpreload threads and reduce theirstrength.

Tip!


5-2


1-1/2º Maximum for Sheaves2º Maximum for Grooved Drums

Section 5Reference Charts

Properly installed Nicopresssleeves have the greatest holdingpower on wire rope and arepermanent.

Tip!

Resultant LoadingResultant loads on sheaves can be calculated using the Law of Cosines or R=LxF. The chartlists values (F) for several degrees of cable wrap. R=LxF; R=Resultant Load; L=Line Load; F=Factor

Wrap (º) F Wrap (º) F_____________________________________________________________________________________________________________________________0 0.000 45 0.732_____________________________________________________________________________________________________________________________5 0.087 60 1.000_____________________________________________________________________________________________________________________________10 0.174 90 1.414_____________________________________________________________________________________________________________________________15 0.261 120 1.732_____________________________________________________________________________________________________________________________30 0.518 180 2.000_____________________________________________________________________________________________________________________________

Fleet Angles_____________________________________________________________________________________________________________________________

Fleet Angle_____________________________________________________________________________________________________________________________Distance (Feet) 1/2º 1º 1-1/2º 2º_____________________________________________________________________________________________________________________________

1 .105 .209 .314 .419_____________________________________________________________________________________________________________________________2 .209 .419 .628 .838_____________________________________________________________________________________________________________________________3 .314 .628 .943 1.26_____________________________________________________________________________________________________________________________4 .419 .838 1.26 1.68_____________________________________________________________________________________________________________________________5 .524 1.05 1.57 2.10_____________________________________________________________________________________________________________________________6 .628 1.26 1.88 2.51_____________________________________________________________________________________________________________________________7 .733 1.47 2.20 2.93_____________________________________________________________________________________________________________________________8 .838 1.68 2.51 3.35_____________________________________________________________________________________________________________________________9 .942 1.88 2.83 3.77_____________________________________________________________________________________________________________________________10 1.05 2.09 3.14 4.19_____________________________________________________________________________________________________________________________12 1.26 2.51 3.77 5.03_____________________________________________________________________________________________________________________________14 1.47 2.93 4.40 5.86_____________________________________________________________________________________________________________________________16 1.68 3.35 5.03 6.70_____________________________________________________________________________________________________________________________18 1.88 3.77 5.65 7.54_____________________________________________________________________________________________________________________________20 2.09 4.19 6.28 8.38_____________________________________________________________________________________________________________________________25 2.62 5.24 7.86 10.5_____________________________________________________________________________________________________________________________30 3.14 6.28 9.42 12.6_____________________________________________________________________________________________________________________________35 3.67 7.33 11.0 14.7_____________________________________________________________________________________________________________________________40 4.19 8.38 12.6 16.8_____________________________________________________________________________________________________________________________45 4.71 9.43 14.1 18.9_____________________________________________________________________________________________________________________________50 5.24 10.5 15.7 20.9_____________________________________________________________________________________________________________________________75 7.85 15.7 23.6 31.4_____________________________________________________________________________________________________________________________

Offset (inches)_____________________________________________________________________________________________________________________________

Minimum Allowable Bending RatiosD/d ratio is the ratio between the sheave tread diameter and the cable diameter.Cable Type MIN.D/d_____________________________________________________________________________________________________________________________6 x 7 Improved Plow Wire 42 (Obsolete in rigging applications)_____________________________________________________________________________________________________________________________6 x 19 30_____________________________________________________________________________________________________________________________6 x 19 IWRC 30_____________________________________________________________________________________________________________________________7 x 19 Galvanized Aircraft Cable 26_____________________________________________________________________________________________________________________________19 x 7 Rotation Resistant 34_____________________________________________________________________________________________________________________________Manila Rope 10_____________________________________________________________________________________________________________________________

Note: For critical application, special construction and other factors affecting cables, contact the manufacturer.


5-3

Terminating Nicopress® Sleeves (1)_____________________________________________________________________________________________________________________________

Copper Oval Sleeves Copper Stop Sleeves_____________________________________________________________________________________________________________________________Cable Size Hand Tool # of Presses #635 Hyd. Tool # of Presses Hand Tool # of Presses #635 Hyd. Tool # of Presses

Required Required Required Required_____________________________________________________________________________________________________________________________1/16" 51-C-887 1 Oval C 1 51-C-887 1 Oval C 1_____________________________________________________________________________________________________________________________1/8" 51-M-850 3 Oval M 3 51-MJ 1 Oval G 1_____________________________________________________________________________________________________________________________3/16" 51-X-850 4 Oval X 4 51-MJ 1 Oval M 1_____________________________________________________________________________________________________________________________1/4" 3-F6-950 3 Oval X6 3 3-F6-950 2 Oval F6 2_____________________________________________________________________________________________________________________________5/16" 3-G9-950 3 Oval G9 1 3-F6-950 2 Oval F6 2_____________________________________________________________________________________________________________________________3/8" Oval H5[1] 1 3-F6-950 2 Oval F6 2_____________________________________________________________________________________________________________________________

(1) Data courtesy of the National Telephone Supply Company

Installation of Crosby® Forged Cable Clips (1)

■ Terminations are 80% efficient ■ Apply U-bolt over dead end of the wire rope■ Live end of the rope must rest in the saddle of the clip■ A termination is not complete until it has been re-torqued ■ Never saddle a dead horse_____________________________________________________________________________________________________________________________

Cable Size Number of Clips Turnback Length Torque on Clips_____________________________________________________________________________________________________________________________1/8" 2 3-1/4" 85mm 4.5 ft.lbs 6.1 N.m_____________________________________________________________________________________________________________________________3/16" 2 3-3/4" 95mm 7.5 ft.lbs 10 N.m_____________________________________________________________________________________________________________________________1/4" 2 4-3/4" 120mm 15 ft.lbs 20 N.m_____________________________________________________________________________________________________________________________5/16" 2 5-1/4" 135mm 30 ft.lbs 41 N.m_____________________________________________________________________________________________________________________________3/8" 2 6-1/2" 165mm 45 ft.lbs 61 N.m_____________________________________________________________________________________________________________________________7/16" 2 7" 180mm 65 ft.lbs 88 N.m_____________________________________________________________________________________________________________________________1/2" 3 11-1/2" 290mm 65 ft.lbs 88 N.m_____________________________________________________________________________________________________________________________9/16" 3 12" 305mm 95 ft.lbs 129 N.m_____________________________________________________________________________________________________________________________5/8" 3 12" 305mm 95 ft.lbs 129 N.m_____________________________________________________________________________________________________________________________

(1) Data courtesy of The Crosby Group, Inc.

Weight Capacity of Counterweight Arbor■ To determine arbor capacities using lead weights, multiply the capacities given by 1.45■ To determine arbor capacities using cast iron weights, multiply the capacities given by 0.90■ Maximum height of counterweight stack in arbor is 1 ft. less than the nominal arbor length■ The actual thickness and weight of individual counterweights will vary slightly_____________________________________________________________________________________________________________________________

Nominal Arbor Length Arbor Capacity with Flame Cut Steel Weights________________________________________________________________________________________4 x 13-3/4" 102 x 350mm 6 x 13/3/4" 152 x 350mm_____________________________________________________________________________________________________________________________

Feet Meters Pounds Kilograms Pounds Kilograms_____________________________________________________________________________________________________________________________4'-0" 1.22 504 229 782 355_____________________________________________________________________________________________________________________________5'-0" 1.52 672 305 1,043 473_____________________________________________________________________________________________________________________________6'-0" 1.83 841 381 1,303 591_____________________________________________________________________________________________________________________________7'-0" 2.13 1,009 458 1,564 709_____________________________________________________________________________________________________________________________8'-0" 2.44 1,177 534 1,825 828_____________________________________________________________________________________________________________________________9'-0" 2.74 1,345 610 2,086 946_____________________________________________________________________________________________________________________________10'-0" 3.05 1,514 687 2,346 1064_____________________________________________________________________________________________________________________________11'-0" 3.35 1,682 763 2,607 1183_____________________________________________________________________________________________________________________________12'-0" 3.66 1,850 839 2,868 1301_____________________________________________________________________________________________________________________________13'-0" 3.96 2,018 915 3,129 1419_________________________________________________________________________________________________

1" Thick Weight 0.025 14.02 6.36 21.73 9.86_____________________________________________________________________________________________________________________________1 ft. of Weight 0.305 168 76.2 260 117.9_____________________________________________________________________________________________________________________________

Section 5Reference


Counterweight sets with a largetemporary imbalance should betied off to the locking rail or use acapstan winch. DO NOT depend onthe rope lock. Tee guided tensionsheaves are designed to operateproperly under normal loads, butcan be pulled loose from the teeguides under extreme loadingconditions.

Tip!

Cable Clip Installation

First Step

Second Step

Third Step


5-4

Section 5Glossary of Rigging Terms

Act Curtain A curtain (sometimesdesigned for a specific show) that isopened to signal the beginning of aperformance. The Front Curtain isoften used for this purpose.

Arbor A carriage or rack thatcontains weights, usually flame cutsteel or cast iron, in sufficient quantityto balance a load.

Audience The area of the theaterwhere visitors sit to view a performance.

Auditorium A hall or seating areawithin the hall where the audienceviews a performance.

Austrian Curtain A curtain that israised (opened) with brailed liftinglines and is sewn with both verticaland horizontal fullness.

Batten A bar, usually made fromsteel pipe, from which scenery, lightsand curtains are hung.

Beam Clamp A device that attachesto the flange of a steel beam withoutaltering the beam in any way fromwhich a load is hung

Belaying Pin A wood or steel rod,inserted into a hole in a pin rail, thatsecures ropes attached to a load.

Border Curtain A curtain used todefine the top limit of the stage andto mask or hide lights and unusedscenery and curtains.

Brail Curtain A curtain that israised (opened) with brail type liftlines and is sewn flat or has horizontalfullness.

Brail Lines Lifting lines that passthrough a row of rings sewn to theback of the curtain and attach at thecurtain bottom. The curtain folds upwhen the lines are pulled.

Cable Roller A roller assemblydesigned to prevent moving cables fromcontacting any part of a building oradjacent rigging. Not intended tochange cable direction or carry loads.

Capstan Winch A winch, usuallyportable, with an un-grooved drumdesigned to assist in moving heavyloads. An operator wraps a ropearound the drum and pulls to tightenthe rope on the drum. Frictioncauses the rope to travel with therotating drum.

Carriage See “Arbor”.

Clew Device that connects severalropes or cables to one, usually stronger,rope or cable.

Contour Curtain A brail or austriancurtain rigged so that each lift line maybe operated separately to form differentshaped openings.

Compensating Line A system oflight and heavy chains or cables thatbalances lift line weight as it transfersfrom the batten to the arbor side of amoving counterweight set.

Counterweight (n) Weights, usuallyflame cut steel or cast iron, that areplaced in counterweight arbors tobalance the weight of loads hung onbattens. (v) The act of adding orremoving weight from a set in orderto achieve a balanced system.

Cyclorama (1) Curtain at the rear ofthe performance area used to representthe sky or distant areas. (2) Set ofborders, legs, and drops used to definethe limits of a performance area.

Dash Pot An adjustable, hydraulicram that smoothly slows and stops amoving object.

Dead End The end of a rope or partof a device that is not active or loadcarrying.

Dead Haul Pulling a load that is notcounterbalanced.

Dead Load The permanent or non-removable part of a system load (i.e.the weight of a batten versus the loadhung from it).

Double Purchase A rope or cablethat passes from a lifting device (arbor,winch, or person) over a block, to ablock attached to the load, and tiedoff at the previous block, is doublepurchased. The system allows twice asmuch load to be raised for a giveneffort, but the rope or cable must bepulled twice as far, so the total workdone remains the same.

Down Stage The area of the stagethat is closest to the audience. See“Raked Stage”.

Drum Winch A winch with a drumfor wrapping up cable as it is taken up.

Equal Pitch All grooves on a sheavehave the same pitch diameter regardless

of the diameter of the cables or ropes.

Fireline Firelines are installed aroundthe perimeter of a stage-prosceniumarch to hold the fire safety curtainopen. Firelines connect the curtain toall manual electrical and heat activateddevices that release the safety curtain.

Fire Safety Curtain A curtain thatcloses automatically in event of a fireto prevent heat, smoke and flames onthe stage from reaching the audience.

Fleet Angle The angle formedbetween the centerline of a sheave ordrum and another sheave or fixed point.

Floor Block Pulley mounted at thefloor to hold a rope or cable in positionand to reverse its direction. Floor blocksmeant for rope often incorporate ameans of adjustment to accommodatechanges in length due to loads orenvironmental conditions.

Fly The act of lifting scenery, lights,and curtains.

Fly Gallery A gallery or catwalkabove the stage floor from whichcounterweight and hemp (rope)rigging is operated.

Fly Loft The space between the roofand the performance area that is notvisible to the audience.

Front Curtain (House Curtain) Acurtain used to define the stage locationto the arriving audience. It is often thecurtain closest to the audience and mayalso perform the function of an “ActCurtain”.

Fullness Additional fabric that isadded to a curtain to be sewn intopleats. 100 percent fullness means thatthe curtain would be double its finishedwidth before the pleats are made.

Gridiron (Grid) An open floor, usuallymade from light steel channels or grating,that is located near the roof steel. It pro-vides mounting locations for riggingequipment and access to that equip-ment for inspection and maintenance.

Guide To control the movement ofrigging devices by means of slides orrollers moving in tracks or on stretchedcables.

Hand Line A line, usually rope, thatis pulled by hand to lift or control themovement of a load.


5-5


Head Block Beams Structuralsteel designed to support the headblocks and carry vertical andhorizontal loads.

Hemp (Rope or Spotline) RiggingA rigging system that employs ropesand sandbags instead of counterweightarbors or other devices. Usually usedfor temporary rigging.

Index Light A series of lamps in aspecial housing designed to illuminatethe locking or pinrail area.

House See “Auditorium”.

House Left/Right The sides of anauditorium as seen by an audiencemember while facing the stage.

Idler A pulley designed to support oneor more cables but not to makedirection changes.

Incremental Block A multi-groovedpulley that supports and changes thedirection of cables between the loadand the head block and that supportsother, more distant, lines in the set.

Lattice Track A parallel pair of anglesor other structural members that guidean arbor or clew. Low friction slides orroller guides are placed on both sides ofthe device to be guided.

Leg Curtain A curtain used to definethe side limit of the stage and to maskor hide actors, lights, and unusedscenery in the off stage area (wings).

Lighting Bridge A walkway acrossthe stage (fixed or flown) where lightsare hung and where they may beadjusted and maintained.

Line Shaft Winch Winch with aseries of cable drums connected to agearbox by a common shaft.

Live End The end of a rope or part ofa device that is active or load carrying.

Live Load That part of a systemload that may be added or deleted (i.e.lights hung from a pipe batten).

Load Brake A secondary brake thatholds the full load in the system, usuallyin the case of a failure in the system.

Loading Gallery (Loading Bridge)A gallery above the stage floor wheretechnicians add and remove counter-weights from the arbors. Usually locatedso technicians have access to arbors whenbattens are at their lowest positions.

Locking Rail A structural railingdesigned to support rope locks in away that allows them to be safelyoperated. It carries any out of balanceloads from the rigging system held byrope locks.

Loft Block A pulley mounted to thegridiron or support steel that supportsand changes the direction of a lift linecable between the load and the headblock.

Head Block A pulley mounted tosupport steel that changes the directionof lift and operating lines between theloft blocks and an arbor or winch.

Masking A set of curtains or scenicelements used to define the visual limitsof a performance area.

Mouse To wrap the end of a rope,cable or turnbuckle to prevent it fromunwinding.

Mule Block A pulley that supportsand changes the direction of one ormore cables traveling between loftblocks and head block.

Multi-Sheave Block A blockwhich contains a number of sheavesand sets of bearings so that each ropeor cable can operate independently.

Off Stage The stage floor area thatis not a part of the acting area and isnot visible to the audience.

Olio Curtain A curtain locatedbetween the “Front” or “Act” curtainsand the “Rear” curtain that closes offa portion of the acting area for moreintimate presentations. It is oftencolored or decorative.

On Stage The portion of the stagearea visible to the audience, usuallydefined by masking curtains, scenery,an orchestra shell, or by lighting.

Orchestra (1) A group of musicianswho play instrumental selections (2) Theportion of the auditorium on the mainfloor that is closest to the musicians andthe acting area.

Orchestra Lift A moving platformthat is used to adjust the elevation of themusicians in relation to the stage andauditorium. Usually operates withinthe confines of an orchestra pit.

Orchestra Pit A depressed areabetween the stage and audience seating

area where musicians sit, so the audiencecan hear the music and see the perfor-mance over the heads of the musicians.

Orchestra Shell An enclosure onstage, consisting of walls and a ceilingthat reflects sound into the auditorium.Usually decorative in nature.

Outrigger A barrier device that pro-tects counterweight arbors from scenery,etc. that may be leaned against them.Often also supports index lights.

Overspeed Brake A secondarybrake designed to halt a load if itexceeds a preset speed.

Pileup Winch Winch with specialdrum that piles up cable in a singlelayer in a slot. Also called a “Yo-Yo”drum winch.

Pinrail A railing with holes to acceptbelaying pins. May also act as a safetyrailing at the edge of a gallery orwalkway.

Pipe Clamp Clamping device thatbolts around a pipe for attachmentof chain or cable hangers.

Pipe Grid Horizontal structure hungover a stage or auditorium to supportlights and scenery. Made from pipescrossing on right angles at set intervals.

Pitch Diameter Diameter of asheave or drum measured from thecenter line of the cable wrappedaround it.

Pivot Block A pulley designed toadjust to structures at odd angles.

Portal A portal consists of a header(border) and tabs (legs) that can bemoved to adjust the size and shapeof the proscenium opening to fitvarious performance needs. It isusually located just up stage of thefront curtain and may haveprovision for mounting lights.

Proscenium The dividing wall orbarrier between audience and thestage.

Proscenium Arch The openingin the proscenium through whichthe audience views a performance.

Raked Stage A sloped platformthat is lower near the audience forbetter visibility and higher at therear, providing the illusion of


5-6


distance. This is the source for theterms “Down Stage” and “Up Stage”.

Rope Lock A cam operateddevice that clamps the hand linethat is attached to an arbor in orderto prevent movement. Designed tohold the unbalanced load in a set.

Safety Chain (1) A secondarysupport line, usually of chain, thatsupports a fire curtain or otherdevice when the primary supportcable become slack for any reason.(2) The extra weight of fire curtainsafety chains help the fire curtainaccelerate at the start of its travel.

Sag Bar A support rail, usually ofwood or plastic, that keeps cablesfrom sagging over a horizontal spandue to their own weight. Sag barsdon’t carry any loads.

Sandbag A fabric bag that can befilled with sand and attached torope rigging as a counterbalance tothe load hung from the set.

Scrim A curtain made from asemi-transparent material that lookssolid when lit from the audience sideand becomes almost invisible whenback lit.

Self-Climbing A pipe grid or battenthat has an integral device for raisingand lowering.

Set A system of cables, pulleys,lifting devices and battens that holdsa specific set of scenic elements,curtains or lights.

Sheave A component with agroove around its circumference tosupport and contain a rope or cableand a bearing at its center to permitrotation about a shaft.

Single Purchase A rope or cablepassing from a lifting device (arbor,winch, or person) over a block, orseries of blocks,to a load is singlepurchased. Force must be exertedequal to the load to be held or raised.

Slack Line A cable that droops orleaves the sheave or drum groovebecause it lacks tension in the line.

Smoke Pocket A slot, usually offabricated steel that supports aguide system at the edges of a firesafety curtain and that helps to

prevent smoke passing around theedges of the curtain.

Spotline Rigging A temporaryrigging system designed to be easilyinstalled. Often rigged with ropeinstead of counterweight.

Stage A platform on which perfor-mances are given.

Stage Left/Right The left andright sides of a stage as seen by anactor standing on stage facing theaudience.

Stage Lift A portion of the stagefloor that may be raised or lowered.

Straight Lift Curtain A curtainthat can be raised (opened) withoutfolding in any way.

Swivel Block A pulley that rotatesin the horizontal plane.

Tab (1) A masking leg that is mountedat right angles to the front of the stage.(2) See “Portal”.

Tag Line A line attached to a loadto assist in controlling its movement.

Tee Guides “T” shaped membersplaced in parallel rows to guide arborsor clews. Guides may consist of lowfriction slides or rollers.

Tieoff Bracket A bracket attached torigging blocks, gridiron, or other struc-ture to hold wires for guiding clews.

Traction Drive Winch Winch witha v-grooved drum that uses frictionbetween cables and the sides of thegrooves to engage the pulling cables.Increasing the cable tension causes thecables to jam tighter in the v-grooves.

Travel The path of moving stageequipment and the distance moved.

Traveler A curtain on a track thatcan be opened or closed to reveal ormask a portion of the stage. Travelersmay be bi-parting or one-way draw.

Tread Pressure The force exertedby a rope or cable against the bottomof a groove in a sheave or drum.

Trim (1) A load is “in trim” whenthe equipment load equals thecounterbalancing weight. (2) A setor element is trimmed when it hasbeen placed in the desired positionwithin the performance area.

Trim Chain A length of chainplaced between a lift line and a pipebatten or scenic element to connectthem and to facilitate minor heightadjustment of the load.

Tripped A curtain or scenicelement is lifted by a second set oflines attached at the bottom orintermediate point on the piece.Pulling the lines will cause the pieceto fold in half or thirds. Note: If thepiece is counterbalanced the weightbalance will shift as the piece is tripped.

Under Hung Hung from thebottom of a beam or structure.

Up Stage The portion of the stagethat is furthest from the audience. See“Raked Stage”.

Upright Resting on top of a beamor structure.

Valance See “Border”. Usually aspecial border associated with the“Front Curtain”. May be permanentlyfixed within the proscenium arch.

Wall Batten Horizontal structuralmembers to which guide tracks areattached.

Wall Knee Bracket that attaches awall batten to the building structure.

Well An open slot in a gridiron,usually framed with upright channels,that supports loft blocks and permitscables to be dropped through the gridto a batten or other load.

Winch A hand cranked or powereddevice consisting of a gear reductionsystem and a device for winding upcable(s).

Wings The portion of the stage arealocated to either side of the actingarea.

Wire Grid An open floor thatsupports lights or provides access totheatrical equipment. It is formed ofwoven cables attached to, andsupported by, a structural frame.

Wire Guide Wires placed to controlthe location and travel of arbors, clewsand curtains.


Section 5Index

Adjustable Combination Floor Block 2-11

Arbors—15 Series, T-Bar 2-12Arbors—84 Series, Lattice 2-14Arbors—85 Series, Wire Guide 2-13Automatic Floor Blocks 2-10Batten End Cap 3-1Batten Trim Clamp 3-2Beam Clamps 3-2Belaying Pins 3-4Bending Ratios 5-2Brail Type Fire Safety Curtains 4-3Brail Fire Curtain Winches 4-5Bytecraft 1-8Cable Clew 3-3Cable Clips 3-6Capstan Winch, Mobile 3-5Chain 3-2Closed Loop Chain

Drive Winch 1-5Combination Floor Blocks 2-11Computerized Controls 1-7Control Systems 1-7Counterweights 2-15Crosby® Forged Cable Clips 3-6Cross Grid

Connector Assembly 3-1Crossed Groove Detector 1-6Curtain Guides 4-6Curtain Tracks 3-7Custom Blocks & Sheaves 2-7Custom Panel Fabrication 1-9Custom Winches 1-5Data Charts 5-1Drum Winch 1-4Electro Thermal Link 4-7Fire Line Hardware 4-7Fire Curtains 4-1Fire Curtain Winches 4-5Fire Safety Curtain

Release System 4-4Fixed Combination

Floor Blocks 2-11Fixed Speed Starter 1-9Fleet Angles 5-2Floor Blocks 2-10Floor Plate 3-2Free End Ball System 4-4Free End Ball 4-7Fusible Link 4-7Glossary of Rigging Terms 5-4Guide Systems 2-17

Head Blocks—55 Series 2-2Head Blocks—59 Series 2-3Heavy Duty Traveller Track 3-7Hydraulic Dash Pots 4-6I-Beam Tracks 3-7Idler Pulleys 2-7Index Lights 2-17Installation,

Forged Cable Clips 2-17Lattice Track 2-14Lattice Track Bottom Brackets 2-14Light Duty Blocks 3-3Line Shaft Winches 1-4Line Weight 4-7Load Brake 1-6Locking Rails 2-16Loft Blocks — 19 Series 2-4Loft Blocks — 55 Series 2-6Loft Blocks — 59 Series 2-6Loft Block Options 2-7Manila Rope 3-4Medium Duty Traveller Tracks 3-7Minimum Service Factors 5-1Misc. Rigging & Hardware 3-2Motorized Fire Curtain Winch 4-5Mule Blocks 2-9Multiline II™ Rope 3-4Multi-Sheave Blocks —

19 Series 2-8Multi-Sheave Blocks —

24 Series 2-8Multi-Sheave Blocks —

55 Series 2-8Nicopress® Sleeves & Tools 3-6Operational Instruction Signs 3-3Outrigger Bracket 2-17Overbalance Bar Systems 4-4Pile-up Drum Winches 1-4Pin Rails 3-4Pipe Battens 3-1Pipe Clamps 3-1Pipe Grid Cross Clamp 3-1Point Hoists 1-4Premium Manila Rope 3-4Pull Ring Release & Sign 4-7Push Button Control 1-7Recommended Working Loads 2-1Resultant Loading 5-2Rope 3-4Rope Locks 2-15Rope Rigging 3-4Round Weight Arbor Guard 4-7

Sandbags 3-4Secondary Brakes 1-6Shackles, Anchor 3-3Shamrock 2500™ 1-8Shamrock 5000™ 1-8Shamrock VS2™ 1-8Sheave Materials 2-1Slack Line Detector 1-6Sliding Tension Blocks 2-10Smoke Pockets 4-6Smoke Seal 4-4Stage-Set X™ Rope 3-4Standard Winch Construction 1-3Straight Lift Fire

Safety Curtains 4-2Straight Traveler Tracks 3-7Starters & Drives 1-9Steel Rope Locks 2-15Sure-Guard™ Release 4-5T-Bar Arbors 2-12T-Bar Guide System 2-17T-Bar Locking Rails 2-16T-Channel™ Guide System 2-17Tension Floor Blocks 2-10Terminating Nicopress Sleeves 5-3Thimbles 3-6Traction Drive Winch 1-5Traveler Tracks 3-7Travelling Drum 1-6Trim Chain 3-2Trigger Release System 4-4Truss Battens 3-1Turnbuckles 3-2Variable Speed

Curtain Controller 1-7Variable Speed Drives 1-9Vertical Drum 1-6Weight Capacity of Arbor 5-3Weight Pipes 3-1Winch Options 1-6Winches 3-5Wire Guide Arbors 2-13Wire Guide Floor Blocks 2-11Wire Guide Locking Rail 2-16Wire Rope 3-6Zetex® Borders 3-3ZetexPlus® Fire Safety Curtains 4-1

5-7


In addition to the equipment shown in this catalog, we design and manufacture completerigging systems. We also build an almost limitless range of custom equipment specificallydesigned to meet customer requirements.

We Build Motorized Equipment.For more than 100 years, we’ve been known around the world for counterweight rigging,but we also build some of the largest and most complex motorized rigging systems in usetoday. We provide motorized systems and controls for everything from simple, fixed-speedlighting hoists to variable-speed point hoist and batten systems, with computerized controlconsoles, for use in major opera houses and other facilities.

We Build Specialized Acoustic Structures.We build specialized acoustic structures—from basic orchestra shells, acoustic banners,and curtain systems, to complete moving canopy systems weighing over 100,000 pounds.

We Build Stage Machinery.We build stage and orchestra lifts and wagons, along with special purpose equipment.

And We Build Trust in Our Ability to Solve Problems.We’ve worked on thousands of successful projects around the world. Each of them haspresented unique challenges. Each has demanded innovation tempered with experience.And each has added to the expertise that we offer our customers and their projects.Global experience is a demanding teacher, and it has taught us that there is no such thingas a standard project. Problems do arise along the way. It is our responsibility to help solvethem and to help ensure that they don’t jeopardize the success of the project.

We’ve built trust in our ability to come up with innovative solutions to tough designproblems. We’ve built trust in our ability to design and manufacture rigging systems thatare safe, reliable and flexible. We’ve built trust in our ability to work in partnership withour customers. And we’d like to work with you.

What Else Do We Do?

Avery Fisher Hall at the Lincoln Center, New York, NY

Avery Fisher Hall at the Lincoln Center, New York, NY

Filene Center, Wolf Trap Farm Park, Vienna, Virginia

Lyric Opera of Chicago, Chicago, Illinois

5-8

Documents

Product Catalog #55 - J.R. Clancy, Inc. · 2017-09-19 · J.R.Clancy, Inc. 7041 Interstate Island Road Syracuse, NY 13209 USA Tel. (315) 451–3440 Fax. (315) 451–1766 Toll Free: