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Steam and Air Valve Operator.

Description: Patent for a steam and air valve operator that allows "the rotative movement of element to be transformed into reciprocity movement of another element." (lines 11-13). It also has new setup for double gears within the device that allows rest of the parts between movements.
Date: February 12, 1907
Creator: Greeson, David H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Plate-Lifter

Description: Patent for an "...improved lifter whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient..." (lines 19-23).
Date: February 28, 1917
Creator: Mitchell, Frank
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hopple for Horses.

Description: Patent for a new and improved hopple for horses. This design "consists in the combination of two curved or bent pieces which are to go around the horses ankles . . . [each with] three links and a ring . . . allow[ing] the horse to walk slowly about, permitting [it] to graze at leisure, and enabling [it] to be easily caught when desired" (lines 14-34).
Date: February 12, 1884
Creator: Cottle, Julius O. & Ivie, Rufus
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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