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4 Matching Results
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Safety-Valve
Patent for a safety valve that can be used on water and gas boilers.
Date:
June 21, 1892
Creator:
Ball, John W.
System:
The Portal to Texas History
Weighing and Lifting Device
Patent for a weighing and lifting device. Illustration included.
Date:
November 21, 1905
Creator:
Davis, James W. & Alexander, Thomas J.
System:
The Portal to Texas History
Derrick.
Patent for improvements in derricks or machines for hoisting heavy objects, which can be easily erected and operated; this device “can be manipulated with ease and by which the article being elevated or lowered may be changed in position without moving the support.” (Lines 20-23) Illustration is included.
Date:
April 21, 1891
Creator:
Lindsey, William E.
System:
The Portal to Texas History
Crude-Oil Burner
Patent for a hydrocarbon burner primarily used for stoves and furnaces. Illustrations included.
Date:
June 21, 1910
Creator:
Reed, Rufus C.
System:
The Portal to Texas History