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Propeller

Description: Patent for a boat propeller that does not create a vacuum behind it and is more efficient than other propellers.
Date: July 23, 1912
Creator: Blake, David H.
Partner: UNT Libraries Government Documents Department

Spring-Washer for Piano-Flanges.

Description: Patent for a spring washer for piano flanges that prevents the flanges from becoming loose over time.
Date: December 5, 1911
Creator: Mayor, Enoch Allen
Partner: UNT Libraries Government Documents Department

Fan and Motoro Therefor.

Description: Patent for a motor-propelled fan that can attach to any support, especially beds steads and other furniture. The motor is simple and can be easily manipulated.
Date: May 9, 1893
Creator: Sneckner, George A. & Roth, Charles E.
Partner: UNT Libraries Government Documents Department

Mold for Typographical Casting-Machines.

Description: Patent for a mold for typographical casting machines which may be altered to produce slugs of different sizes.
Date: April 7, 1914
Creator: Diaz, Pascual M.
Partner: UNT Libraries Government Documents Department

Bedstead

Description: Patent for a bedstead. Illustration included.
Date: October 31, 1905
Creator: Davis, Augustus H.
Partner: UNT Libraries Government Documents Department
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