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Elevator Controlling Device

Description: Patent for improvements to the elevator controlling device. These improvements have to do with the main circuit being broken while the elevator doors are open, thus stopping the elevator from moving before the doors are fully closed.
Date: September 13, 1921
Creator: Quick, Charles F.
Partner: UNT Libraries Government Documents Department

Drilling Apparatus

Description: Patent for a drilling apparatus for wells. This drill is designed to be applied to a rotary and used with a pipe tong to screw and unscrew pipe joints.
Date: October 25, 1921
Creator: Reeves, George G.
Partner: UNT Libraries Government Documents Department

Drill-Bit

Description: Patent for new improvement in drill-bits. The object of the invention is to "provide the driller with advanced knowledge of the formation into which he is about to extend his main hole".
Date: January 11, 1921
Creator: Smith, Primus W.; Bookhout, John J. & Monce, Edwin W.
Partner: UNT Libraries Government Documents Department

Hydraulic Swivel.

Description: Patent for a hydraulic swivel valve, to allow water to flow to the drill stem for purposes of cooling and lubrication.
Date: March 22, 1921
Creator: Black, Lee J.
Partner: UNT Libraries Government Documents Department

Grain-Car.

Description: Patent for a grain car, with improved methods or loading and unloading the grain, as well as an easy method for converting the car to haul regular cargo.
Date: March 15, 1921
Creator: Dukes, Sandy
Partner: UNT Libraries Government Documents Department

Piston for Deep Well Pumps

Description: Patent for the development of a new and improved deep well pump used for the pumping of oil.
Date: February 22, 1921
Creator: Humason, Granville A.; Bashara, Sam F. & Barraco, Paul J.
Partner: UNT Libraries Government Documents Department

Trousers.

Description: Patent for altering trousers to fit all sizes. The ready made trousers are provided with extra material and openings that allow the materials to be adjusted.
Date: June 7, 1921
Creator: Reyes, Benjamin Cardenas
Partner: UNT Libraries Government Documents Department

Saw-Table Gage.

Description: Patent for a saw-table cutting stop that can be very quickly set and which automatically indicates the distance from the stop to the saw.
Date: April 19, 1921
Creator: Krocker, Adolf G.
Partner: UNT Libraries Government Documents Department

Sample Taking Device

Description: Patent for a sample taking device used in the process of drilling wells using water and a multi-armed unit that rotates to drill the stem into the ground.
Date: January 4, 1921
Creator: Dodds, Redus D.
Partner: UNT Libraries Government Documents Department

Sample-Taking Device

Description: Patent for new and useful improvements for devices to take samples from wells. Specifically designed to take samples from hard formations, such as rock or other hard surfaces, being pierced from the drill from any depth in a well.
Date: April 5, 1921
Creator: Dodds, Redus D.
Partner: UNT Libraries Government Documents Department

Removable Pass-Book.

Description: Patent for a book with a removable cover that lies flat when open and fits within a pocket. Particularly suited for bank books, also known as passbooks.
Date: May 3, 1921
Creator: Exline, Marcus P.
Partner: UNT Libraries Government Documents Department

Specification of Letters Patent.

Description: Patent for improvements in the seals for well screens to provide a permanent joint or seal between the screen and the casing with out blocking passage.
Date: June 21, 1921
Creator: Thomson, Alexander
Partner: UNT Libraries Government Documents Department

Truck.

Description: Patent for an improved truck in which the load can be moved to be easily loaded or unloaded by one person, including illustrations.
Date: April 19, 1921
Creator: Ortgier, Walter C.
Partner: UNT Libraries Government Documents Department

Treatment of Crude Petroleum for Purification.

Description: Patent for the purification of crude petroleum by separating impurities such as sand and clay using a heat treatment.
Date: June 7, 1921
Creator: Bostick, Joseph Wallace & Homer, Charles H.
Partner: UNT Libraries Government Documents Department

Steering Attachment.

Description: Patent for a steering attachment that keeps the steering wheels of a motor driven vehicle straight. This device is simple and relatively inexpensive, among other advantages.
Date: May 17, 1921
Creator: Huffman, Orla L.
Partner: UNT Libraries Government Documents Department

Self-Closing Bundle-Receptacle.

Description: Patent for a receptacle basket that attaches to the side of an automobile and closes automatically using springs and hinges.
Date: May 3, 1921
Creator: Cardwell, Charles E.
Partner: UNT Libraries Government Documents Department

Safety Oil-Can.

Description: Patent for "an improvement in safety oil cans...to provide in an oil can, [a] mechanism for securely closing the spout, to prevent waste and evaporation..." (lines 9-13).
Date: July 26, 1921
Creator: Richey, James David
Partner: UNT Libraries Government Documents Department

Sorghum Cutter.

Description: Patent for a machine to cut sorghum and similar standing crops
Date: June 7, 1921
Creator: Drgac, Charles
Partner: UNT Libraries Government Documents Department

Rotary Well-Drilling Machine

Description: Patent for a rotary well-drilling machine that makes use of an "independently rotatable section" to aid in the screwing and unscrewing of pipe sections.
Date: August 9, 1921
Creator: Taylor, William Henry
Partner: UNT Libraries Government Documents Department

Resilient Hub for Wheels.

Description: Patent for an improved version of the Resilient Hub for Wheels, including illustrations. This design is more practical and efficient, as it eliminates the need for a pneumatic tire; rubber can be utilized instead.
Date: September 6, 1921
Creator: Wright, Thomas M.
Partner: UNT Libraries Government Documents Department

Switch.

Description: Patent for an electric switch that is used in conjunction with a signaling device that allows for lights to be activated synchronously or asynchronously via the use of two levers.
Date: September 6, 1921
Creator: Riggs, Fletcher S.
Partner: UNT Libraries Government Documents Department

Templet.

Description: Patent for templets or steel models used in building ships. The steel can be easily shaped into parts.
Date: May 31, 1921
Creator: Nies, Gershom John
Partner: UNT Libraries Government Documents Department

Traction Device.

Description: Patent for a traction device to be attached to the wheels of a motor vehicle to provide greater traction than the treads of the wheels. The traction device is meant to attach to and detach from the wheels as needed and to be adjustable to the dimensions of the wheels and their treads.
Date: July 5, 1921
Creator: Houston, Hugh Edward
Partner: UNT Libraries Government Documents Department

Truss.

Description: Patent for a new truss designed to hold ruptures without discomfort, suitable for single and double ruptures. The truss features a novel spring plate, soft rubber pads, and adjustable waterproof bands.
Date: April 19, 1921
Creator: Downie, James H.
Partner: UNT Libraries Government Documents Department
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