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Pipe-Fishing Tool.

Description: Patent for a tool to remove pipe from a well, especially oil and gas.
Date: November 16, 1920
Creator: Wilkinson, Lee
Partner: UNT Libraries Government Documents Department

Hair Clipper.

Description: Patent for hair clippers that simplifies construction, reduces vibration, and improves efficiency.
Date: May 16, 1922
Creator: Monroe, Collier
Partner: UNT Libraries Government Documents Department

Rock-Drill

Description: Patent for a rock drill design for quick drilling.
Date: August 16, 1921
Creator: Alford, Allen
Partner: UNT Libraries Government Documents Department

Speed-Regulating Device.

Description: Patent for speed-regulating devices that gradually increase or decrease the speed of a driven member automatically. This invention is applicable to motion picture film devices to increase or decrease the speed of the reel.
Date: May 16, 1922
Creator: McNeel, William Pinkney
Partner: UNT Libraries Government Documents Department

Water-Motor.

Description: Patent for a more powerful and efficient water motor which is durable and comparatively affordable to manufacture.
Date: August 16, 1921
Creator: Brady, Enoch J.
Partner: UNT Libraries Government Documents Department

Fountain Brush.

Description: Patent for the improvement of fountain brushes. The brush would be in the shape of a pencil which would stop ink or dye from spreading on fabric.
Date: August 16, 1921
Creator: Bates, William P.
Partner: UNT Libraries Government Documents Department

Cushion Tire

Description: Patent for Cushion Tires. Each tire will have multiple chambers within it, so if one is punctured the remainder of the tire will continue to function and not deflate.
Date: March 16, 1920
Creator: Williams, Henry S.
Partner: UNT Libraries Government Documents Department

Pressure-Screw.

Description: Patent for a pressure screw where the screw can freely rotate, and the shoe may pivot slightly. It is also designed for easy maintenance and lubrication of the bearing and to be cheap to manufacture, efficient and durable.
Date: August 16, 1921
Creator: Menger, Edward W.
Partner: UNT Libraries Government Documents Department

Fan-Oscillating Device.

Description: Patent for an improvement in oscillating fan devices. Rather than running wire from the base of the fan to the motor, which frequently caused mechanical issues (sometimes making the fan irreparable), the fan is fastened to an oscillating platform that uses the force from the fan to oscillate the fan on a table.
Date: March 16, 1920
Creator: Laudrum, Frank M.
Partner: UNT Libraries Government Documents Department

Bee-Shipping Cage

Description: Patent for transferring bees to a different hive without injury and preventing bees from escaping. The bee-cage offers different ways to transfer the bees.
Date: August 16, 1921
Creator: Ault, Eugene B.
Partner: UNT Libraries Government Documents Department

Traveling Block.

Description: Patent for a traveling block construction. The invention resides in the combination and arrangement of parts and in the details of construction that provide a novel form of nut to be positioned on the ends of the supporting shaft of the block, the nuts being hollowed out to provide oil chambers for supplying the shaft with a lubricant.
Date: December 16, 1920
Creator: Boykin, Burwell Jr.
Partner: UNT Libraries Government Documents Department

Ice-Cream Freezer

Description: Patent for an ice cream freezer that has an attachment at the top which can be grasped by hand to keep the ice cream freezer rigid while operating.
Date: August 16, 1921
Creator: Neyland, William M.
Partner: UNT Libraries Government Documents Department

Well-Drilling Bit.

Description: Patent for a well drilling bit with a removable point and cutting edges "at a greater radial distance from the center of the bit" (lines 18-19). The point may be removed for sharpening or replacement.
Date: August 16, 1921
Creator: Midgett, Penelton G.
Partner: UNT Libraries Government Documents Department

Blow-out Patch.

Description: Patent, including illustrations, for tire or shoe blow-out patch that protects the inner tube of the tire and keeps the patch from sliding. Also notes the item can be constructed from "old fabrics from worn shoes or tires" to keep manufacturing and sales costs low (page 1, lines 30-31).
Date: March 16, 1920
Creator: Russell, Charles A., Jr.
Partner: UNT Libraries Government Documents Department

Process of Heating Oil-Retorts and Apparatus Therefor.

Description: Patent for "a method of securing even heating of oil retorts and the like throughout their length" and "a new apparatus, particularly intended for the heating and cracking of oils to convert the same into pyrolytic products". The invention may be used for any oil converting retort, but the patent description relates to the production of gasoline.
Date: August 16, 1921
Creator: Alexander, Clive M.
Partner: UNT Libraries Government Documents Department

Combined Swingletree and Evener.

Description: Patent, including illustrations, for improvements to combined swingletrees and eveners, tools used to equalize strain between a draft animal and vehicle, "which is easily and simply constructed, inexpensive to manufacture, and one which will be very efficient in operation" (lines 22-25).
Date: March 16, 1920
Creator: White, Floyd N.
Partner: UNT Libraries Government Documents Department

Oil and Gas Burner

Description: Patent for a burner that can use both oil and gas as fuel.
Date: May 16, 1922
Creator: Oney, William M.
Partner: UNT Libraries Government Documents Department

Metal-Working Device.

Description: Patent for a hand-operated device that bends and shears metal at any desired angle and length.
Date: August 16, 1921
Creator: Bussel, Herman
Partner: UNT Libraries Government Documents Department

Folding Cot.

Description: Patent for a collapsible, folding cot frame. The cot is designed to be usable and storable in an automobile.
Date: March 16, 1920
Creator: Hall, John T.
Partner: UNT Libraries Government Documents Department

Well-Casing Extractor

Description: Patent for a well-casing extractor that provides gripping rollers for engaging the casing, provides a supporting frame for the movable parts of the apparatus, and provides the means to drive the rollers by power or hand.
Date: August 16, 1921
Creator: Price, Filmore M.
Partner: UNT Libraries Government Documents Department

Signal-Light.

Description: Patent for "new and useful improvements in Signal-Lights." (lines 5-6) and "relates to improvements in signaling means." (lines 8-9) including illustrations.
Date: March 16, 1920
Creator: Thomas, Theodore G.
Partner: UNT Libraries Government Documents Department

Air-Cushion Tire.

Description: Patent for improvement to the air-cushion tire in terms of resilience, and an improved structure.
Date: March 16, 1920
Creator: Williams, Harry S.
Partner: UNT Libraries Government Documents Department

Rotary Moving Picture Machine.

Description: Patent for motion picture machine with interchangeable heads, allowing for change of one reel while the other continues to play undisturbed from same machine.
Date: November 16, 1920
Creator: Hansard, Robert L.
Partner: UNT Libraries Government Documents Department
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