Door Check.
Description:
Patent for a new and improved door check. This design "consists in providing the door with a sliding rod, which is adapted to be actuated so as to engage with a retaining-block attached to the floor by the knob-shank, which is provided with a dog for raising and lowering the rod" (lines 17-22).
Date:
January 13, 1885
Creator:
Niggli, Emil
Partner:
UNT Libraries Government Documents Department