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Windmill

Description: Patent for a windmill. It turns creating rotary motion, caused by the wind, which is used as a pumping power source.
Date: November 2, 1905
Creator: Doty, David
Partner: UNT Libraries Government Documents Department

Draft Device

Description: Patent for a draft device for agricultural machines. Illustrations included.
Date: November 29, 1910
Creator: Dowdy, Ewell Monroe
Partner: UNT Libraries Government Documents Department

Cotton-Harvester

Description: Patent for a cotton harvester that aides in picking the most difficult part of cotton to pick by hand. Includes instruction and illustrations.
Date: January 30, 1917
Creator: Ford, James
Partner: UNT Libraries Government Documents Department
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