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Tractor-Coupling

Description: Patent for tractor coupling. The object of the invention is to provide a coupling for tractor and plow. When a plow hits an obstruction, the coupling will automatically disengage tractor and plow without breaking any parts.
Date: December 21, 1920
Creator: Hart, Lawrence H.
Partner: UNT Libraries Government Documents Department

Huller

Description: Patent for hullers for removing hulls of shells for seeds or other similar products. The invention "is of especial utility in hullers for cottons seeds." However, it is noted that a cotton seed huller is only one adaptation of the invention.
Date: December 21, 1920
Creator: Vardell, Arthur A. & Highland Gee Vardell
Partner: UNT Libraries Government Documents Department

Process of Vaporizing Liquids.

Description: Patent for an engine designed for combustion of kerosene with air. The patent notes improvements for regulating the mixture ratios and maximizing efficiency by heating the air intake.
Date: December 21, 1920
Creator: McClintock, Charles Davis
Partner: UNT Libraries Government Documents Department

Tire-Core.

Description: Patent for a tire core with interlocking sections that can be removed easily from built tires to reuse, including illustrations.
Date: December 21, 1920
Creator: Gillette, Walter S.
Partner: UNT Libraries Government Documents Department

Tire.

Description: Patent for a removable replacement tire. To provide simple and easy removable tires to replace the old ones.
Date: December 21, 1920
Creator: Ford William R.
Partner: UNT Libraries Government Documents Department

Power-Transmitting Device

Description: Patent for improvements in power-transmitting devices: convert rotary movement into reciprocatory movement (lines 14 - 15); the speed of movement of the reciprocating member in one direction is greater than in the opposite directions (lines 20-24); and increased pull (line 30).
Date: December 21, 1920
Creator: Huffman, Orla L.
Partner: UNT Libraries Government Documents Department

Fishing-Tool

Description: Patent for a fishing tool that is "light, and of simple construction... (line 37)." The fishing tool is also meant to be let down into well bores without the rods or tubing getting stuck and automatically locks.
Date: December 21, 1920
Creator: McMillian, John F.
Partner: UNT Libraries Government Documents Department

Composing and Typecasting Machine

Description: Patent for a composing machine utilizing the general principles of the linotype and similar composing and typecasting machines. It is used to provide a more compact machine of that general character for commercial use.
Date: December 21, 1920
Creator: French, Morris & Miller, Monroe E.
Partner: UNT Libraries Government Documents Department
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