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Carbon-Removing Tool
Patent for a new and improved carbon removing tool, which allows for the removal of carbon from the pistons of internal combustion engines. Includes illustrations.
Date:
April 12, 1921
Creator:
Slagle, Eugene H.
System:
The Portal to Texas History
Spark Plug Protector.
Patent for a spark plug protector that will shield the spark plug from moisture.
Date:
March 28, 1922
Creator:
Sharp, Morrison M.
System:
The Portal to Texas History
Tractor-Coupling
Patent for tractor coupling. The object of the invention is to provide a coupling for tractor and plow. When a plow hits an obstruction, the coupling will automatically disengage tractor and plow without breaking any parts.
Date:
December 21, 1920
Creator:
Hart, Lawrence H.
System:
The Portal to Texas History
Cotton-Chopper Attachment for Cultivators.
Patent for improvements in cotton chopping attachments for cultivators that is relatively inexpensive that is highly useful in chopping and plowing cotton plan.
Date:
July 27, 1920
Creator:
Martin, William A. & Roebuck, Mathew P.
System:
The Portal to Texas History