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Wrench.

Description: Patent for a wrench specifically made to remove well drill bits from the drill.
Date: April 13, 1920
Creator: Stover, Willard L.
Partner: UNT Libraries Government Documents Department

Knife.

Description: Patent for a knife with multiple curved blades used to cut food.
Date: July 13, 1920
Creator: Oertli, Henri
Partner: UNT Libraries Government Documents Department

Valve-Grinder.

Description: Patent for "a tool adapted to rotate valves of an internal combustion engine for grinding the same on their seats." (lines 9-11) It is adapted to connect to the cylinder "of the engine in such a manner as to permit accurate and quick operation of the valve for grinding it, and whereby the handle of the tool may be set at a convenient angle for manipulation, and may be lengthened or shortened according to requirements." (lines 15-21)
Date: July 13, 1920
Creator: Ralston, John
Partner: UNT Libraries Government Documents Department

Lens-Holder.

Description: Patent for a lens holder meant to provide a "simple, relatively inexpensive and efficient means" (line 10) of securing the lens in the headlamps of an automobile or similar lamp casing.
Date: April 13, 1920
Creator: Marshall, Stanley G.
Partner: UNT Libraries Government Documents Department

Windmill-Gearing

Description: Patent for improved windmill gearing, intended to reduce stain on the machinery
Date: April 13, 1920
Creator: Roberts, George W.
Partner: UNT Libraries Government Documents Department

Well-Packer.

Description: Patent for an improved well drilling device called a "packer", in which this version has a reduced likelihood of the seals between separate parts being damaged and needing replacement.
Date: April 13, 1920
Creator: Fletcher, Harold W.
Partner: UNT Libraries Government Documents Department

Work Engaging Support for Surface Treating Machines

Description: Patent for work engaging support for surface treating machines. Intent of patent is to provide support for revolving sections of machinery in order to provide greater stabilization.
Date: January 13, 1920
Creator: Clark, Alex A.
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.
Partner: UNT Libraries Government Documents Department

Process of Producing Prints on Metal.

Description: Patent for a new way to print negatives directly on sensitized metal by dying the print, removing the dye stains, burnishing the "high lights," polishing the dye print and finally lacquering in order to make permanent. This gives the image a bas-relief effect.
Date: July 13, 1920
Creator: Snow, Philo V.
Partner: UNT Libraries Government Documents Department

Mirror-Holder

Description: Patent for a mirror holder containing a bracket that allows for easy fixing to various items of furniture.
Date: January 13, 1920
Creator: Barnard, Elmer
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a pump specifically designed for oil wells to make drilling oil more efficient, lucrative, and easier to perform.
Date: April 13, 1920
Creator: Carden, David A.
Partner: UNT Libraries Government Documents Department

Surgical Splint.

Description: Patent for a surgical splint specifically for the substitution of erectile tissue of the corpora cavernous of the genital organ to promote fecundation even in the absence of an erection.
Date: July 13, 1920
Creator: Renois, John J.
Partner: UNT Libraries Government Documents Department

Pneumatic Tire.

Description: Patent for improvements in pneumatic tire that gives a novel means to repairing a worn casing, a blow out, or a rim cut.
Date: July 13, 1920
Creator: Church, Shelby L.
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
Partner: UNT Libraries Government Documents Department

Sling-Shot.

Description: Patent for a sling shot that is more durable, efficient, and less likely to break. Includes instructions and one illustration.
Date: July 13, 1920
Creator: Jones, Ralph L.
Partner: UNT Libraries Government Documents Department

Cotton-Chopping Machine

Description: Patent for a cotton "wheeled cultivator" (line 14-15) attachment which allows users to make adjustments to the cultivator blades, including illustrations.
Date: April 13, 1920
Creator: Sims, James G.
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.
Partner: UNT Libraries Government Documents Department

Calendar

Description: Patent for a calendar that has the ability to preserve pages of interest for future reference.
Date: July 13, 1920
Creator: Pennington, Emory G.
Partner: UNT Libraries Government Documents Department

Testing Device.

Description: Patent for a testing device that can be used to test the condition of the pistons in an internal combustion motor. The device can also be used as an "air pump, or grease or oil gun." (lines 30-31).
Date: April 13, 1920
Creator: Harpst, Frederick E.
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.
Partner: UNT Libraries Government Documents Department

Rotary Boring-Drill

Description: Patent for improved rotary boring-drill with more efficiently mounted rollers.
Date: January 13, 1920
Creator: Hughes, Howard R.
Partner: UNT Libraries Government Documents Department

Rail-Joint

Description: Patent for connecting fish plates at the meeting ends of rails where the rails are securely connected without the necessity of employing bolts. Another object of this improvement is to provide a combined fish plate and rail chair which can be applied to the rails.
Date: January 13, 1920
Creator: Jezik, Joseph J.
Partner: UNT Libraries Government Documents Department

Power-Driven-Implement Frame

Description: Patent for improvements in power driven implement frames, specifically in tractors, with illustrations.
Date: January 13, 1920
Creator: Armstrong, Ira
Partner: UNT Libraries Government Documents Department
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