UNT Libraries Government Documents Department - 48 Matching Results

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Wire Stretcher.

Description: Patent for a new and improved wire stretcher. This design consists in "a frame having two arms, one carrying a fixed clamp and the other a roller, a windlass mounted on said frame having a rope passing over said roller and adapted to be fixed to an end of wire, and a central clamp consisting of a rigid bar on the frame between its arms, a notched clamp pivoted thereon, and a ring for retaining the clamp" (lines 6-14).
Date: February 22, 1887
Creator: Ainsworth, Phineas Hardaman
Item Type: Refine your search to only Patent

Treatment of Mined Sulfur.

Description: Patent for heating sulfur under appropriate conditions in order to carbonized oil contained within, allowing stationary sulfur to burn without difficulty or interference from carbon.
Date: April 19, 1921
Creator: Bacon, Raymond Foss, 1880-1954.
Item Type: Refine your search to only Patent

Machine for Distributing Poison on Plants.

Description: Patent for a new and improved machine for distributing poison on plants. This design consists in "the combination, with a wheeled-frame, a counter-shaft thereon driven from the wheels, a poison-hopper, an air and discharge pipe communicating therewith, a fan giving air-blast through said pipe, and an agitator in the poison-hopper, of wheel and belt-gearing operating the fan and agitator from the counter-shaft on the frame" (lines 112-119).
Date: March 11, 1890
Creator: Brown, George R. & Brown, John W.
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Wrench.

Description: Patent for a wrench which "may be efficiently employed in places which are inaccessible to the ordinary wrench."
Date: August 24, 1915
Creator: Culbertson, Charles P.
Item Type: Refine your search to only Patent

Process of Mining Sulfur.

Description: Patent for innovations in the underground fusion or Frasch process of mining sulfur, "which comprises conducting an appropriate fusing medium [such as hot water] into the formation containing the sulfur deposit and thereby melting the sulfur" (lines 91-95). Central to the innovations is the use of a compressed gas to "eliminate or largely reduce heat losses in porous rock and exhausted sulfur regions at the higher levels of the mine where the presence of the hot water is of no benefit so far as… more
Date: December 27, 1921
Creator: Drachenberg, August Toby
Item Type: Refine your search to only Patent

Plow.

Description: Patent for an improvement to the plow by providing a plastic or plastic-like material to help sticky, thick soil and clay to glide over the surface and decrease frictional resistance, including illustrations.
Date: March 2, 1915
Creator: Fleehearty, Edward L.
Item Type: Refine your search to only Patent

Tire-Core.

Description: Patent for a tire core with interlocking sections that can be removed easily from built tires to reuse, including illustrations.
Date: December 21, 1920
Creator: Gillette, Walter S.
Item Type: Refine your search to only Patent
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