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Nut-Lock.

Description: Patent for a nut-lock that is meant to be screwed onto a bolt, threaded shaft, axle spindle, or other similar screws. The nut has an improved construction and a lock that consists of a tiny pin that must be pulled out before the nut can be unscrewed.
Date: September 19, 1893
Creator: Stewart, William Mills
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Car-Coupling.

Description: Patent for a novel, simple, and practical car coupling that has a link and gravity pin. It "may be set to coupe two of the improved couplings on approaching cars, when these devices engage each other, and also that may be manipulated by the usual lever or chain attachment to uncouple two connected drawheads, effecting such a detachment from the sides or roof of the car" (lines 12-19).
Date: October 17, 1893
Creator: Tiner, John F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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