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3 Matching Results
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Jack.
Patent for a jack for lifting heavy loads on railroads, which has an automatic steady movement of the load up and down without adjusting the jack settings.
Date:
August 6, 1907
Creator:
Blake, David Alexander & Blake, Charles William
System:
The Portal to Texas History
Coin-Controlled Vending-Machine
Patent for a coin-operated vending machine. Illustrations included.
Date:
June 6, 1911
Creator:
Boucher, Horace E.
System:
The Portal to Texas History
Improvement in Insect-Destroyers.
Patent for a device to destroy "winged insects which are destructive to the cotton plants and other vegetation" (lines 19-21) including instructions and illustrations.
Date:
December 6, 1870
Creator:
Byrne, Thomas; Strunk, Diedrich & Schott, J. J.
System:
The Portal to Texas History