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Improvement in Tube-Expanders.

Description: Patent for improvements to tube expanders with springs rigidly secured at one end, detachable rolls, and the ability to fit tubes of different sizes.
Date: July 18, 1876
Creator: Rooney, Hugh L
Partner: UNT Libraries Government Documents Department

Acetylene-Gas Generator.

Description: Patent for a new and useful acetylene gas generator, including instructions and illustrations.
Date: July 18, 1899
Creator: Eldridge, Hilliary & Blum, Sylvain
Partner: UNT Libraries Government Documents Department

Self-Oiling Handsaw.

Description: Patent for invention of a handsaw which is an improvement of current version. This is simple, low cost and convenient handsaw and is operated easily without removing the grip.
Date: July 18, 1916
Creator: Pearson, Robert Bartley
Partner: UNT Libraries Government Documents Department

Automobile Torpedo

Description: Patent for a submarine torpedo which explodes in the hull of a vessels it hits.
Date: July 18, 1911
Creator: Douglas, William M.
Partner: UNT Libraries Government Documents Department

Carbureter.

Description: Patent for a new and improved carburetor. This design calls for "the apparatus [to be] submerged in water for the purpose of equalizing the temperature of the carbureting-liquid, and thereby imparting a more uniform illuminating quality to the gas; also obviating the danger of explosion from access of flame to the exterior of the apparatus" (para. 2).
Date: July 18, 1876
Creator: Pollard, James M. & Barton, Wallace R.
Partner: UNT Libraries Government Documents Department
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