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Mouse-Guard for Pianos.

Description: Patent for "an upright device for closing the opening in the front of a piano directly below a pedal to thereby render the piano mouse proof" (lines 8-11). The device utilizes spring tension to operate.
Date: May 21, 1918
Creator: Bell, Silas D.
Partner: UNT Libraries Government Documents Department

Electric-Shade Insect-Destroyer

Description: Patent for an electric shade insect destroyer where the shade acts as a lamp shade and a insect catcher.
Date: May 9, 1916
Creator: Levine, Lewis
Partner: UNT Libraries Government Documents Department

Chest for Piston-Valves.

Description: Patent for a valve chest "fitted for the reception and operation of a piston valve, easily applying to a piston cylinder of a locomotive in place of a removed slide-valve chest without loss of the cylinder, adapting to use superheated steam and high pressure." (lines 11-19).
Date: May 23, 1916
Creator: Dawson, Lance L. & Roach, John L.
Partner: UNT Libraries Government Documents Department
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