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Cotton-Chopper.

Description: Patent for a cotton-chopper meant to be the most simply constructed. The hoes are attached to a rotating cylinder in the center of the frame, and the hoes rotating is what chops the cotton.
Date: March 9, 1897
Creator: Hopkins, Benjamin F.
Partner: UNT Libraries Government Documents Department

Piston for Pneumatic Pumps.

Description: Patent for improvements in pistons for pneumatic pumps by using a combination of a tubular shell, a cylindrical valve, a conical aperture and a conical projection to fulfill the conditions required of a piston in pumps. Illustration is included.
Date: March 31, 1891
Creator: Robinson, Charles H.
Partner: UNT Libraries Government Documents Department

Apparatus for Aging Whisky.

Description: Patent for a barrel for heating and aging whiskey, which accelerates aging time. Includes instructions and illustrations.
Date: March 1, 1892
Creator: Halligan, John H.
Partner: UNT Libraries Government Documents Department
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