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Treatment of Crude Petroleum for Purification.

Description: Patent for the purification of crude petroleum by separating impurities such as sand and clay using a heat treatment.
Date: June 7, 1921
Creator: Bostick, Joseph Wallace & Homer, Charles H.
Partner: UNT Libraries Government Documents Department

Self-Closing Bundle-Receptacle.

Description: Patent for a receptacle basket that attaches to the side of an automobile and closes automatically using springs and hinges.
Date: May 3, 1921
Creator: Cardwell, Charles E.
Partner: UNT Libraries Government Documents Department

Strain Jacket for Telephone Poles

Description: Patent for a new and useful improvement in strain jackets for telephone poles.
Date: February 22, 1921
Creator: McKnight, William M.
Partner: UNT Libraries Government Documents Department

Swing

Description: Patent for swing that accommodates both seated and reclining positions.
Date: March 1, 1921
Creator: Nelson, Carl N.
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a pump plunger for oil or water that is durable and will not require replacement.
Date: June 7, 1921
Creator: Humason, Granville A.
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a pump designed to draw liquid, such as oil, from a well.
Date: June 14, 1921
Creator: Jones, Oceola
Partner: UNT Libraries Government Documents Department

Process of Treating Wood.

Description: Patent for less expensive chemical wood treatment that will not leach out, will make wood more durable, and preserve wood for multiple uses including marine construction.
Date: August 23, 1921
Creator: Chandler, Asa C. (Asa Crawford), 1891-1958
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.
Partner: UNT Libraries Government Documents Department

Boring-Tool for Oil-Wells and the Like.

Description: Patent for new and improved boring tools. The combined wheel bit and reamer is intended to simultaneously bore and ream.
Date: February 15, 1921
Creator: Belcher, Mark
Partner: UNT Libraries Government Documents Department

Center-Gage and Micrometer

Description: Patent for improvements to a center gage and inside micrometer to "provide central support for dividers" (lines 15-16) including illustrations.
Date: January 11, 1921
Creator: Snell, Charles
Partner: UNT Libraries Government Documents Department

Convertible Automobile-Body

Description: Patent for a convertible automobile body with front seats that can be adjustable horizontally to connect with the rear seats and form a bed.
Date: December 27, 1921
Creator: Mitchell, Frank
Partner: UNT Libraries Government Documents Department

Concrete Building Mold.

Description: Patent for Concrete Building Mold that is composed to be able to be detachable and reversible.
Date: April 19, 1921
Creator: Rossiter, Jay A
Partner: UNT Libraries Government Documents Department

Bandage

Description: Patent for a bandage made of elastic material which includes a flap that can be fastened, or unfastened, and which acts as a holder for an absorbent material that can be replaced.
Date: August 9, 1921
Creator: Kirwan, Leah M.
Partner: UNT Libraries Government Documents Department

Automobile-Signal.

Description: Patent for a visual indicator signal for motor vehicles.
Date: August 9, 1921
Creator: Cobb, Albert C.
Partner: UNT Libraries Government Documents Department

Concrete Building-Block.

Description: Patent for concrete building blocks, intended for use in the building of smaller structures, which are strong, easily assembled, and light weight.
Date: December 27, 1921
Creator: McEwen, James R.
Partner: UNT Libraries Government Documents Department

Attachment For Internal-Combustion Motors

Description: Patent for improvements in attachments for internal- combustion motors. The invention is about new and useful improvements to a specific attachment. The two stated objectives are to provide a device adapted for application to the intake pipe on an internal combustion motor and to provide a device which may be locked in a closed position, thereby preventing theft.
Date: March 29, 1921
Creator: Thomas, James Clarence
Partner: UNT Libraries Government Documents Department

Draft Attachment for Motor-Vehicles.

Description: Patent for a draft attachment by which a motor vehicle may "pull itself free when its traction wheels have become embedded in a soft or muddy road" (lines 14-16).
Date: May 17, 1921
Creator: Worsham, Louis W.
Partner: UNT Libraries Government Documents Department

Condenser for Cotton-Presses.

Description: Patent for "Improvements in Condensers for Cotton-Presses," (lines 6-7) including illustrations. The invention is designed with cotton bale presses in mind, specifically the "condenser or bat forming device" (line 11).
Date: May 24, 1921
Creator: Taft, John A.
Partner: UNT Libraries Government Documents Department

Bridge Construction.

Description: Patent for '' bridge improvements, especially for placement over gutters, ditches, and alike ''
Date: June 21, 1921
Creator: McKenzie, Philip A.
Partner: UNT Libraries Government Documents Department

Sleeve-Puller.

Description: Patent for simple and inexpensive sleeve puller, primarily for "pulling sleeves from the rear axle housing of a motor vehicle" (lines 13-14), with illustrations.
Date: July 12, 1921
Creator: Wilson, Joseph H.
Partner: UNT Libraries Government Documents Department

Spring Wheel.

Description: Patent for the improvement of spring wheels. It is to prevent the movement of a car's rim or hub when sharp turns are being made.
Date: November 22, 1921
Creator: Livings, James Arthur
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.
Partner: UNT Libraries Government Documents Department

Pipe Tongs

Description: Patent for pipe tongs, adapted to securely grip and rotate pipe sections (or other round articles) of different sizes.
Date: December 27, 1921
Creator: Lowrey, George A.
Partner: UNT Libraries Government Documents Department

Wrench

Description: Patent for wrenches that provides a means for engaging faces of the jaws to be renewed or changed. This improvement also allows for secure placement without loss of motion.
Date: August 2, 1921
Creator: Belcher, Mark
Partner: UNT Libraries Government Documents Department
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