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Railroad-Tie.

Description: Patent for a railroad-tie that improves on a patent granted to John C. Lee (No. 513,792). The improvement that simplifies and makes the tie stronger and uses less materials.
Date: November 5, 1895
Creator: Mansfield, Robert Allen
Partner: UNT Libraries Government Documents Department

Spark Plug.

Description: Patent for a spark plug with the capacity to afford an intense spark, prevent leakage of current, and to preclude fouling of the plug in carbon.
Date: October 24, 1922
Creator: Bronson, Fred L.
Partner: UNT Libraries Government Documents Department

Truck.

Description: Patent for an improved truck in which the load can be moved to be easily loaded or unloaded by one person, including illustrations.
Date: April 19, 1921
Creator: Ortgier, Walter C.
Partner: UNT Libraries Government Documents Department

Binding Attachment for Baling-Presses.

Description: Patent for bale binding devices that takes wire from spools and binds each bale and then twists the ends of the bale so they hold their shape.
Date: August 3, 1920
Creator: Leavitt, William H.
Partner: UNT Libraries Government Documents Department

Gas-Burning Stove.

Description: Patent for an improved gas burning stove with a new design to better unite the oxygen in the air and the gas fuel.
Date: November 10, 1914
Creator: Ziegler, John C,
Partner: UNT Libraries Government Documents Department

Underreamer.

Description: Patent for an underreamer with improved construction and increased operating efficiency; including illustrations.
Date: December 9, 1913
Creator: Wagner, Warren
Partner: UNT Libraries Government Documents Department

Pipe Clamping Device

Description: Patent for improvements of a pipe-clamping device which is durable and easy to construct.
Date: August 25, 1915
Creator: Lincoln, Robert A.
Partner: UNT Libraries Government Documents Department

Well Drilling Apparatus.

Description: Patent for an improved well-drilling apparatus. Improvements made to bull wheel shaft and the sand reel and casing line shaft so they may be operated independently of each other while utilizing the same source of power.
Date: January 14, 1919
Creator: Thorniley, Clarence W. & Thorniley, Charles, D.
Partner: UNT Libraries Government Documents Department

Flour-Milling Machinery.

Description: Patent for flour milling machinery with reduced costs of equipment and operation, less required space, and improved quality and quantity of flour.
Date: May 10, 1921
Creator: Smith, George T.
Partner: UNT Libraries Government Documents Department

Gang-Plow.

Description: Patent for a gang plow for “the use of a greater or lesser number of plow units in the gang or series and, to provide as a rear support for the plow a rear furrow-wheel associated with adjusting means for raising or lowering the rear end of the plow to regulate the depth of cut and; with additional adjusting means arranged to shift the crank-axle of said wheel to properly resist the side draft of the plow and, to aid in directing the latter in four-side plowing in order that comparatively sharp… more
Date: January 3, 1905
Creator: Luecke, Henry C.
Partner: UNT Libraries Government Documents Department

Rifle.

Description: Patent for a rifle that uses electricity from a battery to ignite the explosive charge for the ammunition.
Date: January 14, 1919
Creator: Brannon, Virgil C.
Partner: UNT Libraries Government Documents Department

Automobile-Signal.

Description: Patent for turn signal improvements with an aim to improve visibility of signal and ease of replacement with the goal of communicating vehicular movement and reducing accidents.
Date: November 15, 1921
Creator: Squier, William Ernest
Partner: UNT Libraries Government Documents Department

Well Drilling Apparatus.

Description: Patent for a design of a compact well-drilling machine.
Date: April 17, 1914
Creator: Thorniley, Clarence W.
Partner: UNT Libraries Government Documents Department

Calk Attachment For Horseshoes

Description: Patent for new and useful improvements in calk attachments for horseshoes. The objective is to provide detachable means applicable to the conventional types of shoe without any modifications.
Date: March 29, 1921
Creator: Douglas, John Davies
Partner: UNT Libraries Government Documents Department

Route-Indicator.

Description: Patent for an improved route indicator for automobiles "which not only visually indicates the characteristics and risks of the road" but in addition provides an "auditory signal to call attention to approaching hazards or dangers" (lines 36-41). Illustrations included.
Date: November 13, 1917
Creator: Cranmer, Howard
Partner: UNT Libraries Government Documents Department

Steam-Generator.

Description: Patent for a new version of a steam generator that uses internal combustion of "all kinds of liquid fuel and gas" (line 25), and has an "automatically regulated in accordance with the steam pressure" supply of steam in the combustion and mixing chambers.
Date: December 19, 1916
Creator: Sands, George. H.
Partner: UNT Libraries Government Documents Department

Cultivator

Description: Patent for improvements to cultivators.
Date: May 21, 1901
Creator: Skeen, Virgil G.
Partner: UNT Libraries Government Documents Department

Closet

Description: Patent for a dry closet. Illustrations included.
Date: April 2, 1912
Creator: Crow, Levi H.
Partner: UNT Libraries Government Documents Department

Friction Transmission Mechanism.

Description: Patent for improvements toward friction transmission mechanisms. It would eliminate the use of some gears.
Date: March 28, 1921
Creator: McDermott, Henry
Partner: UNT Libraries Government Documents Department

Cut-off Valve for Pipe-Lines

Description: Patent for cut-off valve for pipe-lines intended for oil companies.
Date: April 30, 1918
Creator: Hagern, Joseph F.
Partner: UNT Libraries Government Documents Department

Pipe-Pulling Device.

Description: Patent for a device for pulling pipes from wells without damaging the pipe, with a safety feature in case the pipe breaks.
Date: September 25, 1917
Creator: Osborne, William R.
Partner: UNT Libraries Government Documents Department

Pipe Tongs

Description: Patent for Pipe Tongs
Date: September 5, 1916
Creator: Hill, Richard Dennie
Partner: UNT Libraries Government Documents Department
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