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Window-Sash Lock.

Description: Patent for a device which may be attached to the upper and lower sashes of a window to firmly lock them in position. The device is special because "the attachment to the upper sash does not project into the path of the lower sash nor interfere with its operation" (lines 16-19).
Date: June 8, 1915
Creator: Merrell, Frederick R.
Partner: UNT Libraries Government Documents Department

Weed-Destroying Compostion

Description: Patent for a weed-destroying composition consisting of sulfur, caustic soda, and water.
Date: July 8, 1910
Creator: Orton, Ingomar F.
Partner: UNT Libraries Government Documents Department

Figure Velocipede.

Description: Patent for new figure velocipede which when propelled, resembles a galloping horse.
Date: August 8, 1916
Creator: Houghland, Howard J.
Partner: UNT Libraries Government Documents Department

Rotary Engine

Description: Patent is for a rotary engine. The design of this rotary engine includes an inlet and exhaust that also prevents internal leakage of working fluid under pressure.
Date: May 8, 1912
Creator: Bennison, Samuel
Partner: UNT Libraries Government Documents Department
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