A safety curtain is a passive fire protection feature used in large proscenium theatres. It is usually a heavy fabric curtain located immediately behind the proscenium arch. Asbestos-based materials w
Safety curtain of St Martin's Theatre in London.
The lever and weights used to operate a fire curtain as seen from a theatre's backstage
A fly system, or theatrical rigging system, is a system of ropes, pulleys, counterweights and related devices within a theater that enables a stage crew to quickly, quietly and safely fly components s