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Blacksmith's Tool Set.

Description: Patent for blacksmith tool set including tool holder and tool handle, with illustrations
Date: June 8, 1915
Creator: Ligon, Arthur Lee
Partner: UNT Libraries Government Documents Department

Door Opener

Description: Patent for "improved door opener for automobiles constructed particularly to enable the driver to control any of the doors and open any such selectively at pleasure without leaving his seat." (lines 8-12).
Date: June 8, 1915
Creator: Hyland, George O.
Partner: UNT Libraries Government Documents Department

Gear-Wheel.

Description: Patent for the construction of a wheel and gear rim that converts any ordinary vehicle wheel into a gear wheel.
Date: June 8, 1915
Creator: Biela, Valentine
Partner: UNT Libraries Government Documents Department

Rotary Valve Mechanism.

Description: Patent for a rotary valve mechanism that regulates an internal combustion engine's intake of charge and release of exhaust.
Date: June 8, 1915
Creator: Harpst, Frederick E.
Partner: UNT Libraries Government Documents Department

Sliding Valve for Steam-Engines or the Like

Description: Patent for a sliding valve for steam-engines or the like that is "simpler, less expensive, and otherwise more convenient and advantageous for use" (lines 21-24) including an illustration and instructions.
Date: June 8, 1915
Creator: Williamson, Jason & Williamson, Elmer
Partner: UNT Libraries Government Documents Department

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
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