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Liquid-Cooler.

Description: Patent for a liquid cooler consisting of "few parts of simple form" (line 13) and constructed of wood and metal, including illustrations. The liquid cooler can be thoroughly cleaned, making it possible to maintain a "sanitary condition" (line 17).
Date: July 22, 1913
Creator: Hanna, Oscar V.
Partner: UNT Libraries Government Documents Department

Self-Dumping Drag Harrow

Description: Patent for an invention, including specifications, of an improved Self-Dumping Drag-Harrows mechanism. The device is capable of rotating or changing the angle of harrow teeth and body without the effort of the machine operator, facilitating faster movement and increased production. The mechanism in question is claimed by the applicant in addition to the competent parts arranged in such a fashion as to mimic the capabilities of the described device.
Date: September 27, 1913
Creator: Bales, William S.
Partner: UNT Libraries Government Documents Department

Non-Freezing Water-Supply System.

Description: Patent for a new water-supply draining apparatus to prevent pipes from freezing in cold weather, including illustrations.
Date: December 2, 1913
Creator: Hardy, Paul
Partner: UNT Libraries Government Documents Department
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