UNT Libraries Government Documents Department - 48 Matching Results

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Banjo.

Description: Patent for facilitating the safe packing, storage, and shipment of banjos and other similar musical instruments, including one illustration.
Date: September 14, 1920
Creator: Brown, Norman
Item Type: Refine your search to only Patent

Can Opener

Description: Patent for a can opener which cuts cleanly and rapidly around the outside wall of the can, so as to avoid jagged edges.
Date: February 14, 1922
Creator: Minor, Robert B.
Item Type: Refine your search to only Patent

Centrifugal Separator.

Description: Patent for a centrifuge that can effectively and efficiently separate heavy oils from acids "with which the oil has been mixed or emulsified as a clarifying or decolorizing agent" (lines 14-16), with illustrations.
Date: March 14, 1922
Creator: Paul, Christian F., Jr.
Item Type: Refine your search to only Patent

Container

Description: Patent for container of heavy fluids and greases able to expel the contents through an opening. This is intended to replace ordinary salve jars, which do not protect contents from contaminants.
Date: June 14, 1921
Creator: Bronson, Arthur S.
Item Type: Refine your search to only Patent

Crude-Oil Burner

Description: Patent for an efficient burner of crude or fuel oil that can be used with less dangerous fuels while maintaining the same high level of heat and vaporization necessary for use in domestic environments.
Date: June 14, 1921
Creator: Holmes, Watson W.
Item Type: Refine your search to only Patent

Drill Bit

Description: Patent for improvements in drill bits, particularly in the application used in drilling in soft formations, such as clay, gumbo, or similar material. The purpose of the invention is to provide a way to prevent the sticking of material to the drill and drill collar while the drilling operation is being performed.
Date: February 14, 1922
Creator: Childs, William L.
Item Type: Refine your search to only Patent

Gas Stove.

Description: Patent for a gas stove that is "simple, inexpensive, durable and reliable" (lines 9-10). Gas will be distributed more evenly throughout the stove and better sealing prevents gas odors from escaping.
Date: February 14, 1922
Creator: Wood, Thomas E.
Item Type: Refine your search to only Patent

Gun-Barrel Cleaner.

Description: Patent for a gun-barrel cleaner unique in that it cleans and oils. It also provides an adjustable handle-stop which avoids damage to muzzle end of shotgun by inexperienced users. Adjustable in order to clean different gauges.
Date: November 14, 1922
Creator: McCanna, John F.
Item Type: Refine your search to only Patent

Hair-Clipper

Description: Patent for hair clippers in which the power-driven device will move positively in action comprises a few numbers of parts and is easy to operate.
Date: January 14, 1920
Creator: Jones, Sidney P. & Wallace, David P.
Item Type: Refine your search to only Patent

Ignition System for Gas-Engines.

Description: Patent for improvements to ignition system for gas internal combustion engines that is simple, compact and serves as "a combination coil, distributer, interrupter and condenser for use in connection with storage batteries and low tensioned magnetos not timed to the engine shaft."
Date: September 14, 1920
Creator: Kelly, James
Item Type: Refine your search to only Patent

Mirror Support

Description: Patent for improvements in mirror supports are primarily adapted by travelers. The mirror can also be supported by an electric bulb and can also be turned at varying desired angles.
Date: March 14, 1922
Creator: Reavis, Jesse O.
Item Type: Refine your search to only Patent

Nozzle

Description: Patent for improved head component to nozzles used for spraying liquid paint remover, steam, sand, and other such substances.
Date: December 14, 1920
Creator: Cleveland, David P.
Item Type: Refine your search to only Patent

Oil Burner

Description: Patent for an oil burner. This oil burner is designed to consume fuel in a cheaper and more economical manner.
Date: March 14, 1922
Creator: Mills, Virgil H. & Mills, John H. T.
Item Type: Refine your search to only Patent
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