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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

Gasolene-Measuring Device.

Description: Patent for gasoline measuring device for improving service stations for patrons to see the amount of gasoline. Air pressure will transfer gasoline from tank into measuring device. Gasoline measuring device will be quickly delivered to patrons.
Date: January 25, 1921
Creator: McKallip, Jonathan C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Indexing Device.

Description: Patent for an indexer of paper documents in book form. It is made to open along the center with visible subject headings.
Date: January 18, 1921
Creator: Moran, Stanley C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Vending-Machine.

Description: Patent for improvements in the construction of coin-operated vending machines which automatically lock when coins are not inserted. This device is designed to dispense objects of many shapes and sizes. Illustrations included.
Date: January 6, 1920
Creator: Ogden, Carlton N.
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

Tie-Buckle.

Description: Patent for the improvement of tie buckles, specifically for bales of cotton at cotton gins. The paten includes an illustration of the tie buckle, explanations on how to easily use it, and why it is useful for cotton farming.
Date: January 11, 1921
Creator: Wallace, William M.
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

Sample Taking Device

Description: Patent for a sample taking device used in the process of drilling wells using water and a multi-armed unit that rotates to drill the stem into the ground.
Date: January 4, 1921
Creator: Dodds, Redus D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Elevator.

Description: Patent for an elevator used to lift pipe and other similar objects, the invention is designed to help drilling operations for oil wells.
Date: January 20, 1920
Creator: Steen, Buford 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

Steering Device and Brake for Tractors

Description: Patent for new and useful improvements for the steering and stopping of tractors, particularly for the machines that are extremely difficult and laborous to manually steer and apply brakes. The invention permits the controlling of the direction of movement of the behicle by disconnecting the source of power from the wheel(s) at one side while those at the other side contrinue to rotate under power. The invention allows for braking to be used to slow the motion of the tractor on downward grade o… more
Date: January 10, 1922
Creator: Lewis, Otto Leroy
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

Tractor.

Description: Patent for improvements to a previous patent application for a tractor (Serial No. 399599, filed 1920-07-28). The improvements include rearrangements of parts for the driving wheels from the front to the rear and the rearrangement of the transmission housing.
Date: January 10, 1922
Creator: Lewis, Otto Leroy
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Fishing Device for Oil Wells.

Description: Patent for "fishing devices for use in oil wells or in like situations for recovering parts of the drilling appliances which may have become detached or lost in the well" (lines 9-13).
Date: January 31, 1922
Creator: Sorensen, Sam
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump-Valve

Description: Patent for improvements in a pump valve. Designed to be used in pumping wells, particularly oil wells (Line 11).
Date: January 18, 1921
Creator: Sandlin, James W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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