Resource Type
Counties
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Cotton-Chopper.
Patent for a cotton chopper with hoes on a shaft, which turns and that makes a straight furrow.
Date:
March 31, 1908
Creator:
Smith, Calvin Ewing
System:
The Portal to Texas History
Well-Liner Clamp.
Patent for a well-liner clamp for oil, gas, and other similar wells that prevents the well from caving in. The well-liner clamp is made of resilient material to hold in place, contracts while being placed into the well, and can be released after being placed into the well to expand to fit the walls of the well.
Date:
May 31, 1921
Creator:
Bigelow, Robert J.
System:
The Portal to Texas History
Tying Attachment For Baling Presses
Patent for tying attachment for baling presses for hay. Illustrations included.
Date:
May 31, 1904
Creator:
Johnson, Robert S.
System:
The Portal to Texas History