UNT Libraries Government Documents Department - 6 Matching Results

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Car-Coupling

Description: Patent for an improvement of car coupling design so as to be automatic so that it can couple and uncouple without needing a person to move from car to car that can be used alongside pin and link couplings (lines 11-16).
Date: December 27, 1892
Creator: Millican, Joel W.
Item Type: Refine your search to only Patent

Rotary Engine

Description: Patent for rotary engine, with improvements to rotary engine fluid pressure for motors or engines which pump fluids (such as water motor, water pump, oil pump, ammonia pump or compressor).
Date: December 27, 1921
Creator: Johnson, Louis V.
Item Type: Refine your search to only Patent
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