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Technical Design Solutions for Theatre by Don Harvey, Ben Sammler

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Patrick Markle

A Jig for Installing Roto Locks® in Platform Decks

 

Roto Locks® or “coffin locks” are common stage hardware used for locking platform decks together. Presented here is a shop-built jig used to install Roto Locks® quickly in either of two differently constructed decks. In both cases the locking hardware is installed after the deck has been built.

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FIGURE 1: THE JIG

THE JIG

The jig is constructed of a piece of 4″ × 4″ × ⅛″ steel with four ¼″ and one ½″ hole drilled into it. These holes correspond to the Roto Locks’® four bolt holes and keyhole. In addition, a small notch is cut in each side of the jig at the center. These notches ...

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