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Tube-Vulcanizing Apparatus.

Description: Patent for a tube-vulcanizing apparatus "and in such connection, it relates more particularly to an apparatus for repairing inflatable tubes for wheel tires." (lines 10-13)
Date: March 26, 1918
Creator: Alvis, James T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Level-Indicator.

Description: Patent for a new and improved level indicator, intended for use with airplanes and other flying machines to indicate the angle of ascent or descent, as well as when the machine is on a level keel. The level indicator is designed to have a water-tight casing and weatherproof joints and has brackets to secure it to the airplane.
Date: November 5, 1918
Creator: Westbrook, Homer S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Liquid-Fuel-Measuring Tank

Description: Patent for a liquid fuel measuring tank that accurately measures fuel and can automatically stop accumulating fuel when a certain amount has been reached, including illustrations.
Date: June 25, 1918
Creator: Helm, Virgil L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well Drilling Machine.

Description: Patent for a driving mechanism to reduce the numbers of shafts and other parts needed for well drilling. The invention allows for one main driving shaft to be used as the primary source for well drilling.
Date: February 5, 1918
Creator: Herdman, Adam H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Locomotive Driving-Box.

Description: Patent for an invention relating to detachable flanges found in locomotive driving boxes. Benefits and objectives are explained and illustrations are included.
Date: May 29, 1917
Creator: Hazelwood, William A. & Whiteside, J. Aldo
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Improvement to Lifting-Jacks

Description: Patent for the improvement of the lifting jack which allows the user to "lower the lifting bar by a step-by-step movement as well as to elevate the lifting bar by such a movement (lines 12-14). Includes instructions and illustration."
Date: January 12, 1915
Creator: Parker, Charles W. & Wittliff, Theodore H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Valve

Description: Patent for valves which are of a better construction to prevent leakage.
Date: July 14, 1914
Creator: Bird, John M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Wire-Working Machine.

Description: Patent for improvements in Wire-Working Machines that forms hangers for "coats, trousers, and other clothing" (lines 11-12). Provides a more inexpensive, faster, and more accurate machine that uses less power, includes illustrations.
Date: December 16, 1919
Creator: Shelton, John F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Walking-Cane.

Description: Patent for a walking cane which is made of two intertwined sections of spiral steel wires, which can be painted different colors creating a noticeable object that can be used by sports fans to show support for their team at games,
Date: February 1, 1910
Creator: Alverson, Lewis
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tunnel-Driving Machine.

Description: Patent for "new and useful Improvements in Tunnel- Driving Machines" (lines 5-6), including instructions and illustrations.
Date: September 2, 1913
Creator: Speer, George F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Valve for Explosive-Engines.

Description: Patent for engine valves (rotary type) that are noiseless, connected to the the engine cylinders so that they are self grinding and self adjusting, and that cover and uncover the spark plug in a way that prevents fouling it.
Date: September 2, 1913
Creator: Ray, Albert J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Land-Breaking Plow.

Description: Patent for an agricultural plow that mixes the soil of multiple layers while keeping the soil in its initial layer to conserve moisture and deliver nitrogen. Plow can be motorized or use animals to function.
Date: August 26, 1913
Creator: Reed, Arthur
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tuning Instrument.

Description: Patent for a tuning instrument that has interchangeable reeds and can find the fourth, fifth, and single tone of an octave.
Date: March 21, 1911
Creator: Norcross, Levi Watson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tractor

Description: Patent for improvements to tractors which are designed with the driver's seat positioned on the trailing unit. The improvements allow for tools to be attached in such a way cultivating may be done near fences and other common obstructions.
Date: July 1, 1918
Creator: Chenoweth, William B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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