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Spark-Plug

Description: Patent for improvement of spark-plugs, an automotive engine component.
Date: September 2, 1919
Creator: Hill, John L.
Partner: UNT Libraries Government Documents Department

Internal-Combustion Engine

Description: Patent for an internal-combustion engine with a novel form of rotary valve and other meaningful improvements to a combustion engine.
Date: September 29, 1914
Creator: Clough, George Golden
Partner: UNT Libraries Government Documents Department

Mail-Handling Device.

Description: Patent for a mail handling device that mounts into a train car to assist in loading and unloading of mail bags.
Date: September 11, 1917
Creator: Kost, Joseph L.
Partner: UNT Libraries Government Documents Department

Signal Stand

Description: Patent for a signal stand designed for use in connection with train order boards employing a semaphore as a signal. "The invention, broadly stated, comprises a stand having suitable feet and arms connected by a body portion, said arms serving as a support for a notched quadrant, which quadrant is secured to the arms, a plurality of interconnected layers, one of said levers having a fulcrum or pivotal mounting with the body portion, another of said levers being formed in two parts, one part of w… more
Date: September 10, 1918
Creator: Fleagle, Robert H.
Partner: UNT Libraries Government Documents Department

Brick Fire Box Construction.

Description: Patent for an improved fire box liner construction for oil fueled locomotives that is made from bricks in an interlocking design that does not require cement and will not shake apart from vibration. Includes illustrations.
Date: September 12, 1911
Creator: Blackmond, William C. & Stoy, Guy Everett
Partner: UNT Libraries Government Documents Department

Crude-Oil Burner.

Description: Patent for a crude oil burner for use in steam boilers, which reduces fuel usage.
Date: September 13, 1910
Creator: Owin, Elijah J.
Partner: UNT Libraries Government Documents Department
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