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Valve.
Patent for a float-valve used in water-troughs for cattle and other liquid containers. It closes "when the surface of the water reaches the desired point and [opens] when the surface of the water falls below said point" (lines 14-17).
Date:
January 5, 1897
Creator:
Halley, Hillary H. & McCulley, Robert I.
System:
The Portal to Texas History
Obstetrical Supporter
Patent for a obstetrical supporter. This invention is used as a harness consisting of stirrups. Illustration included.
Date:
March 12, 1907
Creator:
Crume, Francis Marion
System:
The Portal to Texas History