1882 FIRE CODE -- NO REQUIREMENT FOR FIRE CURTAIN
1896 01 15 FIRST MENTION OF FIRE CURTAIN IN NYT
1896 NYC FIRE CODE, BIRKMIRE BOOK, FIRE CURTAIN REQUIRED-- MARKED IN GREEN
1899 NYC FIRE CODE-- FIRE CURTAIN REQUIRED-- MARKED IN GREEN -- SIMILAR TO ABOVE
NYT 1902 05 03
1904 01 01 CHI IROQUOIS THEATRE FIRE
1905 REC'D NATIONAL FIRE CODE-- REQUIRES FIRE CURTAIN, LANGUAGE LIFTED FROM NYC 1899 CODE, MORE OF LESS
ONLY KNOWN CLARK DRAWING, Courtesy Don Hoffend. Screw jack for Worcestor MASS Mem Aud (1933) Orch Lift.
I have tried to locate all patents dealing with stage rigging. If I have missed any, let me know.
1897 VAN EMON Elevator Controller. Van Emon was Jack Partington's stage elevator installer, (1926 10 31 article, further below)
1904 CLANCY Tension block, looks like a lattice track set, with arbor center pole.
1905 CLANCY FIRE CURT RELEASE, pretty much same drawing as above.
1906 CHANNON 1906 C/W SET W/WINDLASS
1913 CLANCY-- STAGE SCREW
1918 CURRAN AND CRANE C/W SYSTEM
1925 JACK PARTINGTON'S FLYING STAGES
Flying stages, as shown here, includes a tracked bandwagon and two stage elevators-- no orchestra pit elevator.
Flying stages could be (and was) a retrofit in older house, because they rose from the stage deck, but did not sink beneath it, so no excavation was required.
Here is the 1926 10 31 FILM DAILY explanation of Partington's Flying Stages.
1925 VAN EMON Elevator hydraulic valve
1926 ADC First drawing of traveler track, first motorized rig
1926 PETER CLARK weird "Curtain Operating Mechanism" first CLARK patent
1927 JACK PARTINGTON refinement to Flying Stages-- I don't understand it.
1928 JACK PARTINGTON, Flying stages with tracks that run off stage as well as US/DS. Sounds similar to the Clark Capitol Re-do in 1927.
1929 PETER CLARK Disappearing footlight
1931 PETER CLARK "Track" -- I don't get it.
1932 PETER CLARK "Stage Setting" -- ditto
1932 VALLEN Picture sheet masking modifier I have suggested elsewhere that Vallen was a Peter Clark sub, for picture sheets and tracks.
1933 PETER CLARK RCMH and Center Theatre stage lifts and turntable combo.