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4 Matching Results
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Self-Soaping Washboard.
Patent for self-soaping washboards to reduce the amount of soap wasted.
Date:
April 13, 1915
Creator:
Kennedy, William J.
System:
The Portal to Texas History
Cotton-Chopper
Patent for improvements to cotton-choppers inculding illustrations.
Date:
April 13, 1915
Creator:
Hamilton, Robert
System:
The Portal to Texas History
Rotary Engine
Patent for rotary engine. This invention "is to provide means whereby the steam supply from the boiler can be controlled. Illustration included.
Date:
September 13, 1910
Creator:
Frazer, Terry H. & Vanlandingham, William W.
System:
The Portal to Texas History
Ant-Trap
Patent for a trap for ants and other burrowing insects which works at the site of the ant-hill or burrow.
Date:
April 13, 1915
Creator:
Cox, Samuel L.
System:
The Portal to Texas History