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Internal Combustion Engine.
Patent for a simplified internal combustion engine that is lighter and more efficient than previous models. It also features detachable and removable parts that will decrease time and cost of repairs, includes illustrations.
Date:
July 29, 1919
Creator:
Higbee, Charlie D.
System:
The Portal to Texas History
Measuring and Dispensing Device.
Patent for improvements to measuring and dispensing devices for powdered malted milk and other powdered substances.
Date:
December 29, 1919
Creator:
Shaw, Wilber S.
System:
The Portal to Texas History
Toothbrush
Patent that provides a toothbrush the ability to penetrate the interstices between the teeth and remove the debris by the vertical movement of the bristles, and being able to do so without discomfort. The brush is sanitary and convenient for being carried in a pocket in the clothing or in a traveling bag as well.
Date:
September 29, 1919
Creator:
Martz, George R.
System:
The Portal to Texas History