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3 Matching Results
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Pump Valve
Patent for a pump valve. Illustration included.
Date:
March 14, 1905
Creator:
Bassett, John Mott
System:
The Portal to Texas History
Automatic Hay-Press
Patent for an automatic hay press that ties three sides of the bale while in the press and the fourth outside of it.
Date:
March 14, 1911
Creator:
Parvin, William S. & Muse, Warwick J.
System:
The Portal to Texas History
Cotton-Separator
Patent for a cotton gin designed to not need frequent cleaning.
Date:
March 14, 1919
Creator:
Williams, Melford L. & Kemper, Earskin G.
System:
The Portal to Texas History