TABLE OF CONTENTS - H & H Specialties

1 H & H Specialties has manufactured equipmentfor entertainment and performing arts facilitiesfor over 35 years under the Atlas Silk trade-mark. During that time, users have come toexpect their equipment to accommodate in-creased loads, operate smoother, perform moredifficult tasks and last longer. H & H Special-ties has continually worked with architects, con-sultants, and users in designing products tomeet these following pages illustrate our standard rig-ging products. Our products are sold by deal-ers throughout the United States, Canada andmany other countries, providing local sourcesfor the supply, installation and maintenance ofthe products shown.

2 In addition to those prod-ucts detailed, the factory s design and manu-facturing capabilities are available to createcustom modified equipment for special new catalog has many changes, includingnew product numbers and working load addition to the information contained herein,we offer product specifications, CAD drawingsand other information in our companion ToolkitCD-ROM. Inquiries regarding any product, orcustom equipment designed to your specifica-tions, can be addressed to individual dealersor directly to the & H Specialties Edwards Avenue Box 9327 South El Monte, CA 91733(626) 575-0776 - (800) 221-9995 FAX (626) 575-3004 Counterweight RiggingMotorized RiggingStage Curtain TracksCurtain MachinesCubicle AS ATLAS - SMOOTH AS SILK H & H Specialties Inc.

3 2005 TABLE OF CONTENTSI ntroduction ..1 Counterweight Rigging Systems ..2-5 Loft BlocksSeries 30 Underhung ..6 Series 32 Underhung ..7 Series 40 Upright ..8 Series 41, 42, 43 Underhung ..9 Series 44 and 46 Specialty Underhung ..10 Loft Block Idlers ..11 Head blocksSeries 50 Upright ..12 Series 51 Underhung .. 13 Series 55 Underhung ..14 Double Purchase ..15 Tension BlocksSeries 70 Tee Guide ..16 Series 71, 73, 74 Specialty ..17 Counterweight ArborsSeries 991 Tee Guide ..18 Series 991 Arbor Guides ..19 Series 992 Wire Guide.

4 20 Series 993 Lattice Track ..21 Series 991C, 991N Double Purchase ..22 Mule BlocksSeries 81 Horizontal ..23 Series 83 Swivel/Pivot ..23 Rope Lock ..24 Locking RailsModel 578 Tee Guide ..25 Model 579 Wire Guide ..25 Tee Bar ..26 Jay Bar ..27 Miscellaneous Rigging Items ..28-30 Motorized Winches ..31 Other Products ..32& 1 DISCLAIMERThe products in this catalog are designed forlifting stage curtains, scenery, lighting, and otherequipment typical to performing arts OF THE ITEMS SHOWN HEREINARE INTENDED FOR THE USE OF LIFTINGOR TRANSPORTING PEOPLE OR OTHERLIVING & H Specialties Inc.

5 Makes no representationof the suitability of any product for any applica-tion unless specific engineering drawings aremade by the factory and the products are in-stalled in precisely the manner detailed by ourengineering 2/01 Rev. 04/052 Rev. 04/05 Typical Upright Counterweight SystemCounterweight Rigging Systems:A theatrical counterweight system provides asimple method of raising and lowering variousbalanced loads by a system of pulleys andweight carriages. As the scenery and equip-ment loads are varied, the amount of counter-balance is adjusted on the weight carriage sothat the system can be raised and lowered witha minimum amount of effort.

6 A counterweightsystem is meant to be operated in a near bal-anced systems are composed of basic major components include the following:Pipe Batten: Typically a 1-1/2" standard pipeused for the attachment of draperies, scenery,lighting, and other Lines: 3/16" or 1/4", 7x19 galvanized air-craft cable used to support the batten at intervalsapproximately ten feet on Block: A single groove sheave assemblyused in groups for the support of the pipe demands of theatre are constantlychanging. What was considered adequatefor productions thirty years ago is nowunderstated.

7 Careful planning at the begin-ning can increase the usefulness of thespace during its lifetime. A high schoolmulti-use auditorium today may also servea second function as a community theatreor town hall theatre is a complicated structure. Inaddition to the normal building systems, itmust also integrate many specialized equip-ment systems specific to the theatre. Thesespecialized systems include stage rigging,draperies, stage lighting, audio, and commu-nication. Care must be taken to carefullycoordinate all of these systems in order toavoid conflicts.

8 The proper selection andinstallation of counterweight rigging equip-ment will result in a system that is bothfunctional and meets current safety 04/05 Typical Underhung Counterweight SystemUpright vs. Underhung:The type of counterweight rigging system installedis dependent on the structural support system pro-vided by the architect and engineer. Existing facili-ties will dictate specific equipment and in somecases, accommodations may be needed to adjustto field conditions. When a new facility is planned,the most useful style of counterweight rigging sys-tem is an underhung system with a grid.

9 This styleHead Block: A multi-groove sheave assemblywhose purpose is to gather all the lift lines from theloft blocks and reeve them toward the Arbor: A weight carriage designedso that the amount of counterbalance can be var-ied proportional to the load imposed on the Block: A single groove assembly mountedunder the counterweight arbor used to reeve thepurchase line from the arbor bottom toward thehead Lock: A device used to position a balancedcounterweight set at the required location in the Line: A 3/4" diameter manila or syn-thetic rope that is reeved in an endless loop andtied off at the counterweight the majority of the counterweight riggingsystem to be mounted to the same structural mem-bers that support the roof while also providing awalking grid.

10 A grid is an open framework of steellocated under the roof for the support of stage rig-ging equipment. The grid provides a position toaccess the underhung rigging for inspection andmaintenance. It is also an uncluttered area for theplacement of specialty rigging sets or spotline rig-ging required for specific theatrical counterweight rigging systems have asteel grid for the attachment of loft blocks and aseparate raised head block beam. From the po-sition of the head block, the cables array down-ward toward the loft blocks.