Resource Type

Automatic Hay-Press (open access)

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
Pump Valve (open access)

Pump Valve

Patent for a pump valve. Illustration included.
Date: March 14, 1905
Creator: Bassett, John Mott
System: The Portal to Texas History
Cotton-Separator (open access)

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