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Clutch and Transmission Mechanism

Description: Patent for and improved version of a clutch and transmission mechanism. These improvements assist in factors such as speed, working against accidental shifting.
Date: May 17, 1921
Creator: Mottier, Walter F.
Partner: UNT Libraries Government Documents Department

Lock for Meter Boxes

Description: Patent for large collage including an variation of meter block locks.
Date: January 29, 1921
Creator: Rynearson, Eugene
Partner: UNT Libraries Government Documents Department

Cotton Cleaner

Description: Patent for mechanical illustrations for the device that designed for cleaning cotton, showing various components and internal mechanisms of the machine.
Date: August 11, 1921
Creator: Ross, Thomas D.
Partner: UNT Libraries Government Documents Department

Knuckle Joint for Wire Line Sheave Heels

Description: Patent for knuckle joint for wire line sheave heels that show different views and components of its mechanism.
Date: November 4, 1921
Creator: Harris G. Parr, Of Fort Worth, Texas
Partner: UNT Libraries Government Documents Department

Tire Pump.

Description: Patent for improvements to tire pumps.
Date: August 3, 1921
Creator: Graham, Howard
Partner: UNT Libraries Government Documents Department

Ice Tongs.

Description: Patent for the combination of tools used as ice tongs, including illustrations.
Date: December 6, 1921
Creator: Henderson, Douglas
Partner: UNT Libraries Government Documents Department

Molding Asphalt.

Description: Patent for a mold and a system to improve shipping and handling of asphalt and similar material, including illustrations.
Date: August 24, 1921
Creator: Hawkins, Clement C.
Partner: UNT Libraries Government Documents Department

Device For Unscrewing And Withdrawing Pipe.

Description: Patent for improving an existing device that unscrews and withdraws pipes from a well bore. The patented device can be operated in either direction to unscrew pipes stuck in a well bore.
Date: September 6, 1921
Creator: Thomas, William C.; Dickens, James C. & Fowler, Jesse W.
Partner: UNT Libraries Government Documents Department

Wind Guard.

Description: Patent for improvements to wind guards for wind shields of automobiles to provide a means of attaching the guard to the post of a wind shield in such a manner that the guard may be adjusted to any position without loosening nuts or bolts or any other fastening, but merely by moving the guards to the desired position at which it will remain until again moved.
Date: September 6, 1921
Creator: Carroll, M. W., Jr.
Partner: UNT Libraries Government Documents Department

Vent Device

Description: Patent for a vent device for gasolene (sic) dispensers. This patent states that the vent will prevent air from entering the pipe by being inserted at a intersection of the dispenser and the hose that is providing the gasolene (sic). This vent will allow air to escape and prevent it from entering the measuring cylinder and ensure a faster fuel time.
Date: September 20, 1921
Creator: Catron, John J.
Partner: UNT Libraries Government Documents Department

Adjustable Wrench

Description: Patent for adjustable wrench, that can fit for different angels and items. It can help people to use in different settings.
Date: July 26, 1921
Creator: Rulfs, Carl Henry
Partner: UNT Libraries Government Documents Department

Broom Corn Tabling Machine

Description: This is a Broom-corn-tabling-machine that made by T. K. Ladd. The machine will improve the workload and develop it as well. Broom-corn is plated in a row and this machine can help to grow and cut.
Date: November 8, 1921
Creator: Ladd, Theodore K.
Partner: UNT Libraries Government Documents Department

Door closer and check

Description: Patent for door close and check. It can improve the useful of the door and help with effectiveness.
Date: April 11, 1921
Creator: Enache, Cociu, of Dallas, Texas
Partner: UNT Libraries Government Documents Department

Oil-Trap.

Description: Patent for an oil trap to catch oil that floats on the surface of the water, particularly near oil refineries, including illustrations.
Date: November 22, 1921
Creator: Jones, Robert P.
Partner: UNT Libraries Government Documents Department

Turbine Governor-Valve.

Description: Patent for a new turbine governor valve that allows for adjustments while the turbine is in operation, including illustrations.
Date: November 22, 1921
Creator: Lacy, Benjamin B.
Partner: UNT Libraries Government Documents Department

Automatic Safety-Gate for Railway-Crossings.

Description: Patent for improvements to swinging automatic safety gates for railway crossings operated by train mechanisms, including illustrations.
Date: October 25, 1921
Creator: Enache, Cociu
Partner: UNT Libraries Government Documents Department

Unloading Device

Description: Patent for unloading device for unloading and stacking piping particular to oil fields.
Date: October 4, 1921
Creator: Jones, William R.
Partner: UNT Libraries Government Documents Department

Pump-plunger.

Description: Patent for an improvement on pump-plungers used in deep wells for handling oil or water mixed with grit. This invention allows the plunger to expand automatically, allowing it to keep a tight seal.
Date: November 8, 1921
Creator: Carmichael, Robert E.
Partner: UNT Libraries Government Documents Department

Pink-Boll-Weevil Destroyer

Description: Patent for pink boll weevil destroyer and worm catcher.
Date: November 15, 1921
Creator: Webb, John Moland
Partner: UNT Libraries Government Documents Department

Well-Washing Device

Description: Patent for well-washing device works for wells that are artesian made which have no screens and pockets at the bottom.
Date: December 27, 1921
Creator: Crotto, Frank E.
Partner: UNT Libraries Government Documents Department

Battery Terminal.

Description: Patent for a new improvement to battery terminals that employs a nut or fastening member and a recessed post that are easily unfastened.
Date: December 13, 1921
Creator: Hawkins, Alda F.
Partner: UNT Libraries Government Documents Department

Device for Holding Ice Upon the Running-Boards of Vehicles.

Description: Patent for a new device for holding ice on the running boards of vehicles that is detachable and includes a prong that prevents the ice from being displaced.
Date: December 27, 1921
Creator: Barton, Warren D.
Partner: UNT Libraries Government Documents Department

Means for Moving the Drive-Shafts of Steam-Engines From Dead-Centers.

Description: Patent for the improvement of moving drive shafts found in steam engines from dead center, especially engines used in oil fields. The patent provides a device that moves the engine's crank shaft from dead center while at a distance via a lever located on the derrick platform "or at some convenient location" (lines 44-45).
Date: September 13, 1921
Creator: Manning, Sanford E.
Partner: UNT Libraries Government Documents Department

Harness-Tug.

Description: Patent for harness-tugs which made improvements by adding metallic parts to already used materials. Giving the item more strength and durability.
Date: December 13, 1921
Creator: Patts, Nick
Partner: UNT Libraries Government Documents Department
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