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Universal Lock and Latch.
Patent for an improved lock and latch system that can be utilized on either the left or right side of a door. The improved design is constructed using the minimum number of materials while remaining durable.
Date:
September 14, 1920
Creator:
Schultze, August J.
System:
The Portal to Texas History
Finger-Exercising Machine.
Patent for a finger-exercising machine that is meant to improve the finger strength and flexibility of musicians. "A cylinder provided with friction-rollers imparts motion to a set of keys upon which the fingers are placed; and the object of [the invention] is to impart flexibility to the fingers, and to overcome the otherwise difficult motion" (lines 11-16).
Date:
September 14, 1880
Creator:
Becker, Francis L.
System:
The Portal to Texas History