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Windmill-Gearing.

Description: Patent for a gearing for windmills, which provides "a more even and steady... stroke of the pump rod" (lines10-11).
Date: September 29, 1908
Creator: Keys, Milton
Partner: UNT Libraries Government Documents Department

Stove.

Description: Patent for a stove, which circulates air through a central drum and increases the amount of heat put out by the stove.
Date: September 3, 1907
Creator: Sanders, Ira B.
Partner: UNT Libraries Government Documents Department

Coin-Controlled Slide

Description: Patent for a coin-controlled slide used for operating mechanical musical instruments and vending machines. Illustrations included.
Date: September 13, 1910
Creator: Hammond, Robert P.
Partner: UNT Libraries Government Documents Department
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