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Aeroplane

Description: Patent for an aeroplane that is inexpensive and easily built, while preventing the aeroplane from going into a tailspin.
Date: December 13, 1921
Creator: McGee, Dan
Partner: UNT Libraries Government Documents Department

Cooking Utensil

Description: Patent for a device to heat a cooking utensil's content. The object provides a device which will support a receptacle in or outside any type of heating medium. It also requires only a minimal heating surface to radiate heat to all sides of the receptacle as well as the very bottom.
Date: December 13, 1921
Creator: Kirk, Robert B. & Young, Joseph B.
Partner: UNT Libraries Government Documents Department

Air-Brake and Starter for Automobiles.

Description: Patent for multiple innovations to automobile air-brakes and starters, including improvements such as ease of use, reliability, and versatility amongst vehicle models.
Date: December 13, 1921
Creator: Green, Herbert
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

Power-Hammer.

Description: Patent for a power hammer that can utilize any power source and only needs one person to operate it. The design also uses less parts, making it more affordable.
Date: December 13, 1921
Creator: Karlson, Eric Fritjof
Partner: UNT Libraries Government Documents Department

Weevil-Exterminator

Description: Patent for a new and useful improvement in weevil exterminators that provides a comparatively simple and effective apparatus for removing boll weevils from cotton plants. It also removes the injured or affect leaves and fruit that have been attacked by the boll weevil so that further injury to the plants may be prevented, and at the same time gather from the ground at the roots of the rows of cotton plants the leaves and rubbish detached from the plants.
Date: December 13, 1921
Creator: Roe, Charles C.
Partner: UNT Libraries Government Documents Department

Plow

Description: This patent focuses on a single-stock plow featuring an innovative attachment designed to enhance stability without requiring material structural changes. The attachment ensures improved steadiness during operation, providing an ease of use comparable to a turning plow
Date: December 13, 1921
Creator: Gage, Daniel W.
Partner: UNT Libraries Government Documents Department

Railroad Crossing Signal.

Description: Patent for a railroad crossing signal. The device is created so that the highway signal can be automatically raised or lowered at the crossing by a passing train.
Date: December 13, 1921
Creator: Ridout, Horace J.
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.
Partner: UNT Libraries Government Documents Department
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