C-clamp (stagecraft)

Uses of C-clamps in stage lighting and sound
– C-clamps are used to attach larger hardware to a pipe or batten in stage lighting and sound.
– They can be made of aluminum or steel.
– C-clamps affix a bolt to the hardware and secure it to the clamp shaft.
– The open end of the clamp is placed over the batten and tightened with a clamp bolt.
– C-clamps for stage lighting fixtures have a pan screw to allow 360-degree rotation while maintaining a secure connection.

Parts of a C-clamp
– Clamp: the main body of the clamp, typically made of cast steel or aluminum.
– Clamp Bolt: a long-threaded bolt used to tighten the clamp on a pipe.
– Spigot: a metal shaft that sits in the clamp and rotates freely.
– Pan Bolt: a small bolt that prevents the spigot from rotating.
– Yoke Bolt: a short bolt that attaches the yoke of a fixture to the spigot.

Variations of C-clamps
– Pipe Clamp
– C clamp
– Trigger Clamp
– Cheeseborough
– Swivel coupler

Uses of C-clamps in film and television
– C-clamps with integrated studs are used to mount lighting fixtures in film and television.
– These clamps allow illumination to be placed in unusual or awkward locations quickly and easily.
– Grips commonly use these specialized clamps in the industry.
– The clamps accept mounting hardware for small, lightweight lighting fixtures.
– They facilitate the placement of lighting in unconventional positions.

Uses of C-clamps in theatrical carpentry
– C-clamps are commonly used in theatrical carpentry for temporary and non-destructive joining of objects.
– They provide a quick way to connect two objects before using more permanent methods.
– Legs are often attached to platforms using C-clamps before they are securely fastened.
– Multi-platform assemblies are joined together using C-clamps, especially in touring situations.
– C-clamps allow sets to be assembled and struck quickly. Source:  https://en.wikipedia.org/wiki/C-clamp_(stagecraft)

C-clamp (stagecraft) (Wikipedia)

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In stagecraft, a c-clamp can refer to a number of different pieces of hardware, depending on its intended use.