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Crude-Oil-Refining Process.
Patent for improvements in the crude oil refining processes and apparatuses. The invention focuses on creating an inexpensive and simplistic system that relies on temperature.
Date:
January 25, 1921
Creator:
Evans, Jewett G. P.
System:
The Portal to Texas History
Rotary Engine
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.
System:
The Portal to Texas History
Machine for Cutting Tire-Casing Treads and Removing Beads
Patent for machines for extracting beads and for cutting treads of tire casings. It is to provide a convenient device for operating on tire casings which are to be stripped and separated into the original elements and to save much labor and avoid much expense.
Date:
October 4, 1921
Creator:
Hibbs, Cassell D.
System:
The Portal to Texas History
Fertilizer and Method of Producing the Same.
Patent for a new and improved condensed fertilizer formula that can be easily transported and is stable enough to be stored without appreciable deterioration, resulting in cost savings.
Date:
November 22, 1921
Creator:
Poynor, Camp, L.
System:
The Portal to Texas History