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Pipe Tongs.
Patent for pipe tongs for drilling wells using rotary systems. The tongs are designed to be securely held against the drill stem using a lever, making them simple and economical to manufacture.
Date:
June 28, 1921
Creator:
Hill, Richard D.
System:
The Portal to Texas History
Pump
Patent for improvements to pumps in working barrels, packing, and packing chambers, the purpose of which is to eliminate easily worn parts and improve the efficiency of these pumps, including illustrations.
Date:
November 28, 1922
Creator:
Kerr, Michael A.
System:
The Portal to Texas History