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Pneumatic Conveyer
Patent for pneumatic conveyor to handle cotton seeds that are being discharged. This particular conveyor uses air currents to operate it.
Date:
November 6, 1917
Creator:
Caffey, Charles B.
System:
The Portal to Texas History
Rolling Cattle-Guard.
Patent for a serrated device that prevents cattle from escaping.
Date:
December 25, 1917
Creator:
Belto, Thomas M.
System:
The Portal to Texas History
Motion-Picture-Film Cleaner.
Patent for improvement in motion picture film cleaners which quickly and efficiently removes oil, dirt and grease from film that has been caused by the machines; includes illustrations.
Date:
September 4, 1917
Creator:
Noble, Marcos Eugene
System:
The Portal to Texas History