Fire Curtain 3 : A flame-retardant curtain in a theater that is drawn or dropped across the proscenium arch in a theater during a fire to form a barrier between the stage and auditorium. See also: Draft Curtain
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}