148
In Harry Lees' U. S. Patent No. 1,055,056 of March 4,
1913, we find a drawing of one of the uses for a stage
screw. Harry shows the stage screw in use on
a
scenery-brace having a foot-iron.
In U. S. Patent No. 1,103,723 issued July 14, 1914 for a
Stage Screw
Paul Witte wrote
This invention relates to
wood screws and in particular a stage screw for use in
connecting parts of stage scenery or in securing scenery to
the stage itself.
In U. S. Patent No. 1,188,305 for a
Stage Screw
, Edward
Noerteman wrote
... a wood screw of the kind ordinarily
employed in securing scenery to stages, and which screws
must be capable of being readily and easily applied and
removed.
The patent was issued June 20, 1916.