THE 120 Lecture 7: Stagecraft Notes #7
Tuesday, October 16, 2018
INTRO TO STAGECRAFT
Rigging!
-counterweight system components!
•batten!
-1-1/4” schedule 40 pipe!
-scenery attaches directly onto battens!
•lift lines!
-1/4”-1/2” wire rope or aircraft cable!
-attached to batten every 5’-6’!
-cheap!
•grid!
-a network of beams supporting the elements of the counterweight system!
•loft block!
-changes lift line in direction from vertical to horizontal!
-a series of them for each batten!
-carries lift lines across the grid in the SL<—>SR direction!
•head block!
-changes lift line direction from horizontal to vertical!
-directs lift lines down toward stage floor to attach arbor!
•purchase line!
-aka hand line!
-aka operating line!
-rope which the flyman pulls in order to operate fly system!
-usually 1-1/2” twisted rope or braided rope!
•rope lock & locking rail!
1
Document Summary
Scenery attaches directly onto battens: lift lines. A network of beams supporting the elements of the counterweight system: loft block. Changes lift line in direction from vertical to horizontal. A series of them for each batten. Carries lift lines across the grid in the sl< >sr direction: head block. Changes lift line direction from horizontal to vertical. Directs lift lines down toward stage oor to attach arbor: purchase line. Rope which the yman pulls in order to operate y system. Usually 1-1/2 twisted rope or braided rope: rope lock & locking rail. Each line set has a clamp which locks down on the purchase line to prevent. Ring prevents lock from falling open unintentionally: arbor & counterweight. A moving carriage where counterweights, equal to the weight of the scenery, are held in a counterweight rigging system: block essentially means pulley. Single vs double purchase system: single purchase. Weight on batten equal to weight on arbor.
