Hemp House Rigging- fundamental basis for modern day rigging systems.
Spot line rigging is when you fly something specific for a show that doesn’t use the theaters rigging system such as a chandelier.
Different kind of ropes:
natural fiber- limiting factor is determined by how strong each fiber is and how long the fibers are.
Different types of natural fiber rope are: Hemp, Sisal, and Manila
synthetic- limiting factor is how strong the raw material is.
Diffetent types of synthetic rope are: Nylon, Polyester, and Polypropylene.
Rope Construction:
Twisted- individual fibers are twisted to make a thread. Threads are twisted to make a strand. Strands are twisted to make a rope.
Parallel Core- inside is not twisted. Outside is a jacket to hold the core together. All the strength is in the core.
Braided- double braided- core and sheath are both braided.
Knots reduce strength of rope by 50%
Inspecting rope: visual- every time rope is used, make sure there is no visual discoloration or deformation in the rope.
annual in depth inspection- feel along the entire length of the rope for any deformations.
Hemp line set loading procedure.
1-lower the batten to working height.
2- attach load.
3- overload batten out.
4- attach sandbags and test weight.
5- level batten
6- set trim height
Hemp line set unloading procedure:
1- remove sandbags
2-lower batten to working height
3- remove load.
