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Improvement in Vapor-Burners.

Description: Patent for an improvement in vapor burners used in self-generating gas burners.
Date: June 23, 1874
Creator: Sawyer, Frederick A.
Partner: UNT Libraries Government Documents Department

Improvement in Apparatus for the Manufacture of Gas from Oils.

Description: Patent for "machines for the manufacture of gas from oils, benzine, gasoline, &c.; and it consists in providing the tank or cistern with a retort constructed with an outer cylinder surrounding one or more cylinders or tubes, which inner cylinder is provided with perforated plates at the top and bottom thereof, and the space between said plates filled with sponge or other porous material, while the space or chamber between the inner and outer shell of the retort serves as a mixing-chamber for th… more
Date: June 18, 1872
Creator: Gearing, Charles & Gearing, Franklin A. G.
Partner: UNT Libraries Government Documents Department

Improvement in Preparations of Chewing-Gum.

Description: The production of chewing-gum will become much simpler with the improved patent of chewing-gum.
Date: June 23, 1877
Creator: Cotter, Robert
Partner: UNT Libraries Government Documents Department

Improvement in Car-Couplings

Description: Patent for an improved car-coupling that lets cars couple automatically when they run together and uncouple automatically in the event of an accident. Includes instructions and an illustration.
Date: June 18, 1872
Creator: Jourde, Alfred J.
Partner: UNT Libraries Government Documents Department

Improvement in Carriage-Axles.

Description: Patent for improvements to carriage axles which include the addition of a sleeve, bearing, and linch-pin device.
Date: June 13, 1871
Creator: Wagner, Ernest Friedrich
Partner: UNT Libraries Government Documents Department
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