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Automatic Flame-Regulator
Patent for a simple mechanical means of automatically maintaining a desired temperature within an incubator lamp.
Date:
September 25, 1917
Creator:
Krizan, Joseph, Jr.
System:
The Portal to Texas History
Transmission Mechanism.
Patent for an improved transmission mechanism for changing speed of tractors and other machines, with illustrations. The improvement is in the arrangement and assembly of the component parts to improve efficiency and to provide several different forward speeds as well as a reverse speed.
Date:
October 9, 1917
Creator:
Ingram, Joseph D.
System:
The Portal to Texas History