UNT Libraries Government Documents Department - 1,001 Matching Results

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Improvement in Steam-Engines.

Description: Patent related to "improvements in steam-engines. The object...is to devise means whereby the valves may be actuated automatically without the employment of exterior mechanisms by the use of exhaust-steam" (lines 17-22). Includes instructions and illustration.
Date: July 1, 1879
Creator: Garlock, William H. & Cooke, Richard

Bee Hive.

Description: Patent for improvements to "that class of bee-hives or bee-houses having a series of compartments..." (lines 15-17) with instructions and illustrations.
Date: May 21, 1878
Creator: Walton, George Slaughter

Attachment for Wheel-Plows.

Description: Patent for "invention has relation to improvements in attachments to sulky and other horse-plows" (para. 3). Combines a circle-plate, transverse clamp-ridge, clamps, a bearing plate, a king-bolt, a transverse sleeve, an axle, adjusting collars, and transporting-wheels on said axle.
Date: December 21, 1878
Creator: Cummins, John Randolph

Plow.

Description: Patent for improvements applicable to a gang of plows. Ability to adjust depth, security of plow arms, and can plow three rows at once.
Date: March 18, 1879
Creator: Gifford, George Lewis

Plow.

Description: Patent for improvements in the plow with a heated mold-board to prevent sticking, including illustrations.
Date: March 11, 1879
Creator: Tucker, Argyle W.