UNT Libraries Government Documents Department - 23 Matching Results

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Pump

Description: Patent for pump that has "a valve chest which is formed of a single casting removably mounted on the pump cylinder, and carrying all the valves of the pump."
Date: October 24, 1916
Creator: Black, Lee J.
Item Type: Refine your search to only Patent

Wrench.

Description: Patent for wrench related device "for locking the gripping element after it is applied to the pipe or other pipe (lines 14-15)" including instructions and illustration.
Date: October 19, 1915
Creator: Black, Lee J.
Item Type: Refine your search to only Patent

Method Of Drilling Wells

Description: Patent for a method of drilling wells. This invention is known as the rotary process that deals with alluvial deposits at different levels such as sand, water flows, gravel, gas under pressure, and boulders. Illustration included.
Date: October 30, 1906
Creator: Decker, Harry R.
Item Type: Refine your search to only Patent

Dredging Apparatus.

Description: Patent for an improved dredging apparatus that plows or scoops, and has "an endless traveling elevator, the latter, being arranged in a rigid frame that is supported at a suitable angle, and the scoop being hinged to the lower end of said frame so that it works horizontally, or practically so" (lines 9-14).
Date: October 30, 1894
Creator: Hyatt, Frank A.
Item Type: Refine your search to only Patent

Variable-Speed-Transmission Gearing.

Description: Patent for an improved transmission gearing that provides "variable speed transmission gearing" (line 10) which allows for different forward and reverse speeds, including illustrations. The variable speed transmission gearing is designed primarily for automobiles and motor vehicles.
Date: October 5, 1915
Creator: Maschek, Henry
Item Type: Refine your search to only Patent

Portable Press for Hay

Description: Patent for a portable press for hay. "My invention relates to portable hay and other presses, and has for its objects, first, an improved power-transmission and lever device for pressing or forcing the hay or other material into th box or frame of the press" (line 8-13). Illustration included.
Date: October 13, 1903
Creator: McKean, Frank
Item Type: Refine your search to only Patent

Roof Structure.

Description: Patent for an improved roof structure that has "movable panels in the roof and side walls... to permit of manual adjustment to regulate the temperature, light, and moisture" (lines 10-14). This patent includes instructions and illustrations.
Date: October 29, 1918
Creator: Simon, Jacob P.
Item Type: Refine your search to only Patent

Tire Structure

Description: Patent for a tire structure that eliminates circumferential differences and also renders a simpler, less expensive model for tire construction.
Date: October 7, 1919
Creator: Smith, Jesse G.
Item Type: Refine your search to only Patent

Lubricator

Description: Patent for a lubricator used for lubricating graphite that is utilized in air brake systems. Illustrations included.
Date: October 5, 1909
Creator: Turner, William Orris
Item Type: Refine your search to only Patent
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