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Pipe-Wrench.
Patent for an economical pipe wrench that is easily adjustable using a pivoting, movable jaw to fit pipes of varying sizes.
Date:
May 5, 1914
Creator:
Adams, Benjamin F.
System:
The Portal to Texas History
Well Pump
Patent for a well pump. "This invention relates to well-pumps of that character wherein a piston is operatively arranged within an outflow-pipe and having an automatically - closed bottom check - valve opened by the suction produced" (line 8-13). Illustration included.
Date:
March 5, 1907
Creator:
Medlock, Augustus L.
System:
The Portal to Texas History