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Pneumatic Conveyer

Description: 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.
Partner: UNT Libraries Government Documents Department

Motion-Picture-Film Cleaner.

Description: 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
Partner: UNT Libraries Government Documents Department

Rolling Cattle-Guard.

Description: Patent for a serrated device that prevents cattle from escaping.
Date: December 25, 1917
Creator: Belto, Thomas M.
Partner: UNT Libraries Government Documents Department
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