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3 Matching Results
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Valve-Controlling Mechanism for Train-Air-Brake Systems
Patent for a valve controlling mechanism for train air brake systems that can be used when a car derails.
Date:
June 11, 1912
Creator:
Strader, Perry T.
System:
The Portal to Texas History
Grab for Pump and Drill Rods.
Patent for a grabbing device for pump and drill rods in wells to lift them out of the well.
Date:
May 11, 1909
Creator:
Law, Eddie P.
System:
The Portal to Texas History
Egg Beater
Patent for an egg beater. Illustration included.
Date:
January 11, 1910
Creator:
Nichols, Charles A.
System:
The Portal to Texas History