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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

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

Power-Transmitting Mechanism.

Description: Patent for improvements in a power transmitting mechanism that is "designed for the purpose of connecting a driving or power shaft with a driven shaft, whereby the driven shaft is continuously rotated from the driving shaft." (lines 11-14)
Date: July 13, 1920
Creator: Smith, Robert W. J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Piston.

Description: Patent for improvements in pistons (also called follower heads) for pump cylinders that are more designed for oil wells. The principal object of this invention is to provide a means for renewing parts of the head to restore the same to its original diameter after it has become worn and loose.
Date: January 13, 1920
Creator: Miller, William James
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Display and Vending Device.

Description: Patent for a new improvement to display and vending devices to display products for purchase without a clerk. The device is automated so that it delivers the product directly to the consumer without the need for the consumer to move or change positions. The device cuts costs due to the dismissal of clerks.
Date: January 13, 1920
Creator: Ogden, Carlton N.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Valve-Cleaner.

Description: Patent for a valve cleaner to remove carbon from the internal combustion motors in automobiles. It can be used without removing the valve or motor.
Date: December 13, 1921
Creator: Henderson, Daniel D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Signal for Vehicles.

Description: Patent for a signal designed to be carried on the rear end of a motor vehicle for the purpose of indicating whether the vehicle intends to turn to the right or to the left, operated by the driver in advance.
Date: September 13, 1921
Creator: Mckesky, Walter W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Process of Making Bearings

Description: Patent for the process of making bearings, for improvement of bearings and the process of bearing formation on the interior of rotary members (or rotary cutters used on earth boring drills).
Date: December 13, 1921
Creator: Fletcher, Harold W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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