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Twister.

Description: Patent for a twister used in "twisting together the ends of the baling wires employed in forming bales of hay" (lines 10-12) including instructions and illustrations.
Date: February 26, 1918
Creator: Dudley, Andrew T.
Partner: UNT Libraries Government Documents Department

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

Well-Strainer.

Description: Patent for improvements to well strainers. Plugs with slats are applied throughout the pipe, making the plugs stronger and capable of enduring more strain.
Date: September 28, 1915
Creator: McEvoy, Joseph H.
Partner: UNT Libraries Government Documents Department

Well-Drilling Tool.

Description: Patent for a well-drilling tool adapted for use in a sticky shale or similar formations.
Date: January 31, 1922
Creator: Reed, Clarence E.
Partner: UNT Libraries Government Documents Department

Well-Screen Washer and Perforator.

Description: Patent for a device that is used to wash a screen set in an oil well and perforate the pipe the screen is attached to.
Date: March 25, 1919
Creator: Wilkirson, Aaron L.
Partner: UNT Libraries Government Documents Department

Water-Heating Attachment for Internal-Combustion Motors.

Description: Patent for a water heating attachment for internal combustion motors that will allow the cooling fluid in said motors to remain heated even when the motor is at rest, especially during freezing temperatures, including illustration.
Date: December 7, 1920
Creator: Clayton, Oscar B. & Oberwetter, George T.
Partner: UNT Libraries Government Documents Department

Well-Boring Apparatus

Description: Patent for a new and improved well-boring apparatus that rotates a drill stem. The drill is then elevated when it is desired to unscrew the joints.
Date: September 2, 1919
Creator: Headrick, James O.
Partner: UNT Libraries Government Documents Department

Well-Screen.

Description: Patent for improving well screens used in tubes for water or oil wells, with illustration. This describes how to secure its place within the tube.
Date: unknown
Creator: Layne, Lloyd F.
Partner: UNT Libraries Government Documents Department

Well-Shooting Torpedo.

Description: Patent for "torpedoes of the type used in "shooting" wells, the object being to provide a torpedo which will be especially useful in the removal of casings from wells" (lines 9-13), such as easier removal from dry wells. Also, modifications to the hammer are noted to ensure explosion.
Date: June 25, 1918
Creator: Franklin, Henry L.
Partner: UNT Libraries Government Documents Department

Well-Packer.

Description: Patent for an improved well drilling device called a "packer", in which this version has a reduced likelihood of the seals between separate parts being damaged and needing replacement.
Date: April 13, 1920
Creator: Fletcher, Harold W.
Partner: UNT Libraries Government Documents Department

Well-Screen

Description: Patent for a well-screen which is used in oil or water wells for screening out sand from the inflowing fluids
Date: February 19, 1918
Creator: Rodrigo, Henry, Sr.
Partner: UNT Libraries Government Documents Department

Locomotive Drifting-Valve.

Description: Patent for locomotive drifting valves to admit saturated steam from the boiler to the steam chamber of the valve chest and cylinders while the locomotive is running with the main steam throttle closed.
Date: January 8, 1918
Creator: Meister, Alfred A.; Surles, John W. & Boyle, Edmund F.
Partner: UNT Libraries Government Documents Department

Well-Screen Cleaner.

Description: Patent for cleaning well screens and preventing oil well pipes from clogging to improve production.
Date: June 7, 1921
Creator: Bashara, Samuel F.
Partner: UNT Libraries Government Documents Department

Well-Screen.

Description: Patent for a well-screen formed of perforated pipes for oil production to filter sand and detritus, including illustrations.
Date: June 3, 1919
Creator: Mack, James O.
Partner: UNT Libraries Government Documents Department

Well-Boring Apparatus

Description: Patent for "new and useful improvements in well boring apparatus. The object of the invention is to provide an apparatus of the character described embodying a rotary table and a novel means for connecting the same to the string of pipe, which extends down into the well and which is rotated by said table and in turn rotates the boring tool carried by the lower end of said spring of pipe" (lines 9-18) including instructions and illustrations.
Date: October 19, 1920
Creator: Decker, Harry R.
Partner: UNT Libraries Government Documents Department

Well-Screen.

Description: Patent for a "well screen in which a maximum screening area is obtained without weakening the frame" (lines 11-13) including instructions and illustrations.
Date: July 23, 1918
Creator: Layne, Mahlon E.
Partner: UNT Libraries Government Documents Department

Machine-Gun.

Description: Patent for a machine gun, meant to have relatively few parts, that includes a belt to carry a large amount of cartridges. The machine gun "provides a structure wherein the cartridges are positively and consecutively fed to the explosion chamber" (lines 11-14).
Date: July 16, 1918
Creator: McManus, Luis M. & Warner, James Harold
Partner: UNT Libraries Government Documents Department

Machine for Welding Tubes.

Description: Patent for a new and improved machine for welding tubes. This design "has relation to machines for welding flues; and it consists in the improved construction and combination of operative parts" (lines 22-25).
Date: August 29, 1882
Creator: Charlton, James
Partner: UNT Libraries Government Documents Department

Lubricator.

Description: Patent for a new and improved lubricator. This design "relates to improvements in that class of lubricators wherein the oil reservoir or vessel is provided with a discharge-pipe passing through the bottom to the point of delivery, and rising within the reservoir to near its top, the steam rising in such pipe condensing and falling by gravity to the bottom of the reservoir, thus displacing the oil, and causing it to rise and flow down through the pipe to the parts to be lubricated" (lines 8-17).
Date: March 4, 1884
Creator: Bissett, Jean
Partner: UNT Libraries Government Documents Department

Well-Drilling Machinery

Description: Patent for a well drilling machine. Illustrations included.
Date: May 19, 1908
Creator: Decker, Harry R.
Partner: UNT Libraries Government Documents Department

Machine for Cutting Baled Hay

Description: Patent for a machine for cutting baled hay. Illustrations included.
Date: May 12, 1908
Creator: Richmond, George E.
Partner: UNT Libraries Government Documents Department

Lure-Conveyer

Description: Patent for a conveying lure used in dog races. Illustrations included.
Date: September 10, 1912
Creator: Smith, Owen P.
Partner: UNT Libraries Government Documents Department

Water or Oil Screen.

Description: Patent for a water or oil well screen to keep mud and other debris out of the barrel of the well.
Date: March 24, 1908
Creator: Childress, Authey Eli
Partner: UNT Libraries Government Documents Department

Loose-Leaf Binder

Description: Patent for loose-leaf binders. A strong and easy way to attach or remove loose leaf papers from a flat book.
Date: January 4, 1906
Creator: Owen, Thomas
Partner: UNT Libraries Government Documents Department
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