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Method of Seperating Associated Liquids.

Description: Patent for a new method of seperating liquids, specifically those "in which particles of one liquid are held, or bound in mechanical suspension in another" (lines 10-12). The inventor provides the specific example of water and crude oil.
Date: August 20, 1918
Creator: McKibben, Charles W.
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Partner: UNT Libraries Government Documents Department

Mining Sulfur.

Description: Patent for extracting sulfur that is being mined from the stratum that has the minerals. A fluid medium, such as air or a heated liquid, is forced into the stratum which assists with the elevation of the liquid mineral. As the minerals come up the heated tubes, the liquefied minerals are sent into vats.
Date: September 8, 1903
Creator: Higgins, Pattillo
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Partner: UNT Libraries Government Documents Department

Purifying Oils

Description: Patent that converts low grade petroleum into higher grade petroleum. The process warms aluminum chlorid with petroleum material in a nonviolent way to make a purifying oil.
Date: August 27, 1918
Creator: McAfee, Almer M.
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Partner: UNT Libraries Government Documents Department

Valve.

Description: Patent for an improvement in the function and use of a valve which gets rid of the wire usually used to raise tank valves. Getting rid of this wire allows for easier drainage.
Date: January 20, 1914
Creator: Axtell, Fred W.
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Partner: UNT Libraries Government Documents Department

Recharging-Valve.

Description: Patent for a recharging valve "to permit recharging the auxiliary reservoirs of an automatic air-brake system without involving the release of the brakes." (lines 8-11) including instructions and illustrations.
Date: October 3, 1905
Creator: Williams, Leonard F.
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Partner: UNT Libraries Government Documents Department

Handle-Fastener

Description: Patent for handle fastener for tools such as screwdrivers, chisels, and augers. Illustrations included.
Date: February 4, 1913
Creator: McMillan, Eugene C.
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Partner: UNT Libraries Government Documents Department

Wrench

Description: Patent for a nut and pipe wrench. Illustrations included.
Date: July 7, 1908
Creator: Barr, George T.
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Partner: UNT Libraries Government Documents Department

Valve

Description: Patent for a tank valve. Illustrations included.
Date: November 12, 1912
Creator: Roberts, George W.
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Partner: UNT Libraries Government Documents Department

Rotary

Description: Patent for a rotary with the rotary table secured onto the base. Illustrations included.
Date: November 19, 1912
Creator: Decker, Harry R.
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Partner: UNT Libraries Government Documents Department

Wrench

Description: Patent for a wrench. Illustrations included.
Date: June 2, 1908
Creator: Layne, Mahlon E. & Hall, Samuel N.
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Partner: UNT Libraries Government Documents Department
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