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Apparatus for Treatment of Oil Emulsions.

Description: Patent for improvements in apparatus for treatment of oil emulsions by providing a means that will greatly assist in the separation of water from oil emulsions and which will aid the re-absorption or retention of gas.
Date: January 13, 1920
Creator: McKibben, Charles W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Apparatus for Extracting Minerals from Ores.

Description: Patent for an apparatus that extracts minerals, especially sulfur, from ores. The apparatus features new and useful improvements, creating an automatic extraction that separates the minerals in a pure state.
Date: January 13, 1920
Creator: Shires, George M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Valve-Grinder.

Description: Patent for "a tool adapted to rotate valves of an internal combustion engine for grinding the same on their seats." (lines 9-11) It is adapted to connect to the cylinder "of the engine in such a manner as to permit accurate and quick operation of the valve for grinding it, and whereby the handle of the tool may be set at a convenient angle for manipulation, and may be lengthened or shortened according to requirements." (lines 15-21)
Date: July 13, 1920
Creator: Ralston, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Packer.

Description: Patent for an improved well drilling device called a "packer", in which this version has a reduced likelihood of the seals between separate parts being damaged and needing replacement.
Date: April 13, 1920
Creator: Fletcher, Harold W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump Piston

Description: Patent for an "Improvement in Pump-Pistons" (lines 5-6) including illustrations.
Date: January 13, 1920
Creator: Humason, Granville A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a pump specifically designed for oil wells to make drilling oil more efficient, lucrative, and easier to perform.
Date: April 13, 1920
Creator: Carden, David A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pneumatic Tire.

Description: Patent for improvements in pneumatic tire that gives a novel means to repairing a worn casing, a blow out, or a rim cut.
Date: July 13, 1920
Creator: Church, Shelby L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Testing Device.

Description: Patent for a testing device that can be used to test the condition of the pistons in an internal combustion motor. The device can also be used as an "air pump, or grease or oil gun." (lines 30-31).
Date: April 13, 1920
Creator: Harpst, Frederick E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gin

Description: Patent for a gin that will strip fiber from the seed, "motes", and other "foreign bodies" (lines 27-28) without damaging the fiber.
Date: January 13, 1920
Creator: Tischer, Edward R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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