8 Matching Results

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Results: 1 - 8

Trowel.

Description: Patent for "new and useful improvements in Trowels." (lines 8-9) including instructions and illustrations.
Date: March 2, 1920
Creator: Parker, Barton J.
Partner: UNT Libraries Government Documents Department

Tractor.

Description: Patent for improvements to the tractor with adjustable framework for the wheels (narrower or wider).
Date: March 23, 1920
Creator: Weaver, William S.
Partner: UNT Libraries Government Documents Department

Pump

Description: Patent for an improvement to pumps. This pump is designed to facilitate pumping of materials from deep oil and water wells.
Date: March 20, 1920
Creator: Hunt, David
Partner: UNT Libraries Government Documents Department

Unscrewing Device for Pipe-Joints.

Description: Patent for an unscrewing device for pipe-joints, in the event that the drill stem gets stuck while drilling wells. This invention allows the user to unscrew "the joints of the drill stem" and withdraw "the same without the use of the left hand threaded string of pipe" (lines 35-38).
Date: March 23, 1920
Creator: Edwards, Charles R.
Partner: UNT Libraries Government Documents Department

Furnace.

Description: Patent for a furnace capable of burning rice hulls, sawdust, chaff, and more "in connection with the boiler for generating steam and which will entirely consume such products without contaminating the surrounding air with the ashes given off" (lines 31-34).
Date: March 9, 1920
Creator: Ewing, William E.
Partner: UNT Libraries Government Documents Department

Signal-Light.

Description: Patent for "new and useful improvements in Signal-Lights." (lines 5-6) and "relates to improvements in signaling means." (lines 8-9) including illustrations.
Date: March 16, 1920
Creator: Thomas, Theodore G.
Partner: UNT Libraries Government Documents Department

Wire-Forming Machine.

Description: Patent for a wire forming machine that takes wire from an intake and automatically forms the wire into clothes pins. This machine also improves the wire feeding mechanism in older models of this type of machine, and it forms a ring that the pins can attach to for the purpose of suspending the pin from a clothes line.
Date: March 9, 1920
Creator: Werner, Henry E. & Mitchell, Jordan H.
Partner: UNT Libraries Government Documents Department

Culvert.

Description: Patent for a culvert which is to be used for sewers or other underground conveyers. Its is to be composed of varying materials that can be easily shipped and jointed together to form the sewer or other underground conveyer.
Date: March 23, 1920
Creator: Charliss, Charles F. J.
Partner: UNT Libraries Government Documents Department
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