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Wrench.
Patent for a nut-wrench capable of tightening different sized nuts. The lower jaw of the wrench has different levels, the overall effect being that of a staircase, while the upper jaw is flat with a bite that holds the nuts in place.
Date:
December 15, 1896
Creator:
Tiner, John F.
System:
The Portal to Texas History
Car-Coupling.
Patent for a simple and reliable car-coupling that embodies "novel features of construction that adapt[s] said coupling for an automatic coupled engagement with a similar coupling, and that may be safely uncoupled from the side of the car whereon the improvement is secured" (lines 11-16).
Date:
September 3, 1895
Creator:
Tiner, John F.
System:
The Portal to Texas History