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Electric Hairbrush

Description: Patent for an improved electric hairbrush having an insulated electrical heating element and separately charged electrically conductive metallic bristles. The hairbrush is designed to straighten hair and/or to electrically treat a user's hair and scalp with a low-voltage current. A device in the handle allows the user to regulate the heating of the element.
Date: November 28, 1922
Creator: Harvey, Birdie
Partner: UNT Libraries Government Documents Department

Ignition Device.

Description: Patent for improvements in Ignition Devices. This device will assist in locating trouble when a multi-cylinder gasoline engine is not firing regularly and one cylinder is "missing".
Date: June 8, 1920
Creator: Wood, Robert N.
Partner: UNT Libraries Government Documents Department

Churning Device

Description: Patent for an improved churning device that provides a carrier for the churning receptacle, making manufacturing cheaper and operation easier.
Date: June 15, 1920
Creator: Thompson, Robert A. & Morris, Lute P.
Partner: UNT Libraries Government Documents Department

Butter-Cutter

Description: Patent for improved butter cutting machine to be used in professional kitchens.
Date: November 30, 1920
Creator: Palmer, William W.
Partner: UNT Libraries Government Documents Department

Four-Wheel Drive Mechanism

Description: Patent for improvements toward four-wheel drive mechanisms. This includes adding a vertical and central drive to the front wheels so that they have the same speed rate as the back wheels.
Date: August 9, 1921
Creator: Smith, George W.
Partner: UNT Libraries Government Documents Department

Automobile-Tool.

Description: Patent for an automobile tool for the Ford make of automobiles that "will hold the springs away from the bands and allow the bands to be removed and replaced or adjusted, when necessary" (lines 29-32) including instructions and illustrations.
Date: May 4, 1920
Creator: Roberge, James Z.
Partner: UNT Libraries Government Documents Department

Collar Fastener or Clasp

Description: Patent for a collar fastener "which will hold the flaps of a collar properly spaced from each other and insure a secure gripping of the flaps to avoid untidy appearance of the collar" (lines 14-17). Includes illustrations.
Date: June 21, 1921
Creator: Orson, Kelly N.
Partner: UNT Libraries Government Documents Department

Well Cable-Pump

Description: Patent for an improved pump that can be used in connection with deep wells and provides improved construction that alleviates the necessity of having a long line of extra pipe and the troubling pump rod.
Date: July 27, 1920
Creator: Fender, Joe N.
Partner: UNT Libraries Government Documents Department

Mechanical Riding-Horse.

Description: Patent for mechanical riding horse that is designed for children to use. It's purpose is a toy that can be ridden and travelled on as a tricycle.
Date: January 25, 1921
Creator: Finley, David Guy
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

Fan-Oscillating Device.

Description: Patent for an improvement in oscillating fan devices. Rather than running wire from the base of the fan to the motor, which frequently caused mechanical issues (sometimes making the fan irreparable), the fan is fastened to an oscillating platform that uses the force from the fan to oscillate the fan on a table.
Date: March 16, 1920
Creator: Laudrum, Frank M.
Partner: UNT Libraries Government Documents Department

Bottle-Filling Device.

Description: Patent for filling bottles with "two liquids and introducing them into the bottle at the same time under pressure" (lines 17-18), specifically for "carbonated beverages" (lines 12-13).
Date: April 6, 1920
Creator: Dannelley, Dillon C.
Partner: UNT Libraries Government Documents Department

Blow-Out Boot

Description: Patent for a blow-out boot which would prevent the usual particulate from being able to enter the inner tire after a blow-out.
Date: January 4, 1921
Creator: Barnes, John A.
Partner: UNT Libraries Government Documents Department

Paving Apparatus.

Description: Patent for "a device or apparatus for transmitting the vibrations of a vibrating machine...for the purpose of solidifying the paving by driving out air and water and surplus moisture" (lines 12-18), including illustration.
Date: July 5, 1921
Creator: Stubbs, Robert C.
Partner: UNT Libraries Government Documents Department

Well-Drilling Device.

Description: Patent for well drilling device with new and useful improvements in well-drilling device for simultaneously drilling the main hole and an advance or "rat-tail" hole.
Date: March 1, 1921
Creator: Smith, Primus W. & Bookhout, John J.
Partner: UNT Libraries Government Documents Department

Well-Drilling Bit.

Description: Patent for a well drilling bit with a removable point and cutting edges "at a greater radial distance from the center of the bit" (lines 18-19). The point may be removed for sharpening or replacement.
Date: August 16, 1921
Creator: Midgett, Penelton G.
Partner: UNT Libraries Government Documents Department

Heating Apparatus.

Description: Patent for a heating apparatus that heats and dries sand or other abrasive materials. A furnace or heating member is attached to a receptacle, which heats and dries the materials. Materials are drawn out via a suction pipe.
Date: August 17, 1920
Creator: Cleveland, David P.
Partner: UNT Libraries Government Documents Department

Tractor.

Description: Patent for a tractor in which the placement of the power source reduces dead weight and provides a low center of gravity, thereby increasing stability.
Date: May 24, 1921
Creator: Martin, John J.
Partner: UNT Libraries Government Documents Department

Cotton-Cleaner

Description: Patent for a cotton-cleaner with beveled beaters attached to a central shaft. The shape of the beaters and rotation push the cotton outwards and downwards, thus preventing the cotton from clogging or collecting around the central shaft. Patent includes illustrations.
Date: October 26, 1920
Creator: Stacy, Grover C.
Partner: UNT Libraries Government Documents Department

Pump for Hydraulic Presses

Description: Patent for a hydraulic pump that drives at a uniform speed as the pressure of the press increases, and connects the pistons with two pairs of cylinders moving in opposite cycles.
Date: May 10, 1921
Creator: Henry, Nelson B.
Partner: UNT Libraries Government Documents Department

Refrigerator-Door.

Description: Patent for individual doors for compartments within a refrigerator, to protect items from being exposed to warm air when the refrigerator door is ajar. This patent also provides for the ability to apply doors as attachments to refrigerators without pre-installed compartment doors.
Date: June 28, 1921
Creator: Jurek, Martin
Partner: UNT Libraries Government Documents Department

Magnetically-Operated Oil-Well Fishing-Tool.

Description: Patent for an electrically operated tool designed to retrieve lost oil pump plungers or casings from within oil wells.
Date: April 12, 1921
Creator: Dooley, William D.
Partner: UNT Libraries Government Documents Department

Process of Producing Tire-Patch Material.

Description: Patent for an improved tire patch material combination and production process, which results in less water absorption and better adhesion to the tire.
Date: May 11, 1920
Creator: Duffy, Clarence O.
Partner: UNT Libraries Government Documents Department
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