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6 Matching Results
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6
Coop.
Patent for a coop to ship poultry and similar animals. Slidable slats and bars allow for food and water access.
Date:
April 13, 1915
Creator:
Ferguson, Charles W.
System:
The Portal to Texas History
Well-Packer.
Patent for an improved well drilling device called a "packer", in which this version has a reduced likelihood of the seals between separate parts being damaged and needing replacement.
Date:
April 13, 1920
Creator:
Fletcher, Harold W.
System:
The Portal to Texas History
Pump.
Patent for a pump specifically designed for oil wells to make drilling oil more efficient, lucrative, and easier to perform.
Date:
April 13, 1920
Creator:
Carden, David A.
System:
The Portal to Texas History
Testing Device.
Patent for a testing device that can be used to test the condition of the pistons in an internal combustion motor. The device can also be used as an "air pump, or grease or oil gun." (lines 30-31).
Date:
April 13, 1920
Creator:
Harpst, Frederick E.
System:
The Portal to Texas History
Farm-Gate
Patent for a farm gate that is easy to manufacture and assemble.
Date:
April 13, 1915
Creator:
Cardwell, Charles E. & Jenkins, R. E. Lee
System:
The Portal to Texas History
Rice-Huller
Patent for a rice huller designed to remove the coatings and hulls from rice grains. Illustrations included.
Date:
April 13, 1909
Creator:
Hayes, Daniel J.
System:
The Portal to Texas History