UNT Libraries Government Documents Department - 159 Matching Results

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Drafting Implement

Description: Patent for drafting implement, for laying out or plotting curves of different degrees and combining the functions of a plurality of implements into a single implement.
Date: January 3, 1922
Creator: Tanner, John L.
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Dressing Block.

Description: Patent for Dressing Block for well drilling tools. A further aim of this invention is to provide a means for adjusting the tool and the anvil so that tools of different lengths and different sizes, may be readily accommodated and properly dressed.
Date: November 8, 1921
Creator: Montgomery, Gustavus A.
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Drill-Bit.

Description: Patent for improvements in drill bit constructions that allows the drill bit to be switched out and the new bit locked in so it is secure.
Date: June 22, 1920
Creator: Midgett, Penelton G.
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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.
Item Type: Refine your search to only Patent

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
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Electric Water Heater

Description: Patent for improvements to electric water heaters adapted for heating small bodies of water. The interior walls of the cylinders in the heating unit are perforated so that water can freely circulate through and between them.
Date: February 7, 1922
Creator: Stephens, Richard M.
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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.
Item Type: Refine your search to only Patent

Embroidery-Needle.

Description: Patent for an embroidery needle that is simplified version for easy use and avoid complications. The embroidery needle has a better grip for the user.
Date: March 15, 1921
Creator: Pade, George V. & Neitzel, Conrad T.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

Fish-Catching Device

Description: Patent for an improvement in fish-catching devices which provides a bait-holding device in a horizontal position and the ability to completely conceal the fish-catching device within the bait, including illustrations.
Date: February 7, 1922
Creator: Riza, George P.
Item Type: Refine your search to only Patent

Fountain Brush.

Description: Patent for the improvement of fountain brushes. The brush would be in the shape of a pencil which would stop ink or dye from spreading on fabric.
Date: August 16, 1921
Creator: Bates, William P.
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Fountain-Pen Blotting Attachment.

Description: Patent for an attachment for fountain pens that would hold a roll of blotting paper or other ink absorbing material on a revolving stem to be used to remove extra ink from paper after using the fountain pen. The attachment is contained in a cap that is attached to the end of the fountain pen.
Date: August 9, 1921
Creator: Odom, Blaine W.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

Fuel Vaporizer for Carburetors.

Description: Patent for "an improvement in fuel heaters or vaporizers for use with carburetors for hydrocarbon fuel engines" (lines 9-12). The device "can therefore utilize those hydrocarbons of specific gravity much higher than gasoline, as fuel for internal combustion engines, with safety and with more economy than has heretofore been deemed possible." (lines 106-111).
Date: February 7, 1922
Creator: Smith, Maurice O.
Item Type: Refine your search to only Patent

Game.

Description: Patent for a board game based on finance. The board game uses numbered discs that players own multiple quantities of that indicate their positions on the board.
Date: January 11, 1921
Creator: Sterling, Don L.
Item Type: Refine your search to only Patent

Game-Board.

Description: Patent for a game board that includes barriers, inclines, and depressions in the board which is meant to simulate a game similar to baseball (as well as other games) using a cue ball. The game board also comes with auxiliary barriers to adjust gameplay.
Date: July 12, 1921
Creator: Sterling, Don L.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent
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