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26 Matching Results
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Liquid-Fuel Burner.
Patent for improvements in liquid fuel burners that can handle intense heat and can be mass-produced.
Date:
September 27, 1921
Creator:
Hosek, Charles
Object Type:
Patent
System:
The Portal to Texas History
Railroad Crossing Signal.
Patent for a railroad crossing signal. The device is created so that the highway signal can be automatically raised or lowered at the crossing by a passing train.
Date:
December 13, 1921
Creator:
Ridout, Horace J.
Object Type:
Patent
System:
The Portal to Texas History