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Wire-Stretcher

Description: Patent for a wire stretcher for stretching wire to build fences.
Date: December 30, 1890
Creator: Burdick, John
Partner: UNT Libraries Government Documents Department

Water-Gage.

Description: Patent for a water-gage measuring the height or volume of water in a steam boiler, particularly those "held closed by the weight of the operating handle" (lines 11-12). The device is designed for simple manufacture and easy assembly & disassembly without tools, and features a valve seat that stays in place, illustrations included.
Date: December 30, 1919
Creator: Leidecker, Helmoth M.
Partner: UNT Libraries Government Documents Department

Method of Sealing The Walls of Oil-Wells

Description: Patent for a method of sealing oil wells to avoid applying casing to the wells to prevent leakage, seepage, or cave-ins.
Date: December 7, 1920
Creator: Nolan, William E.
Partner: UNT Libraries Government Documents Department

Rail-Fastening.

Description: Patent for a rail fastening for padding the connection between the rail and the tie, which has a stronger connection than previous versions of this type of device.
Date: December 24, 1907
Creator: Percival, Herbert E.
Partner: UNT Libraries Government Documents Department
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