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Casing-Pulling Apparatus.

Description: Patent for an apparatus to more easily and more economically remove well-casings from the ground when an oil well is no longer in use.
Date: November 29, 1921
Creator: Wilson, John Hart
Partner: UNT Libraries Government Documents Department

Well-Drill Wrench.

Description: Patent for a well drill wrench that improves upon William Ellinger's patent 1,327,379, issued January 6, 1920. This improvement eliminates friction between the rotatable and stationary parts of the wrench and ensures that the rotatable part is fully supported during its entire rotation, "as when screwing or unscrewing the drill bit" (lines 109-110).
Date: November 15, 1921
Creator: Ellinger, William H.
Partner: UNT Libraries Government Documents Department

Sash Lock

Description: Patent for a sash lock. This invention pertains to railway cars. Illustration included.
Date: November 8, 1904
Creator: Hughes, Henry B.
Partner: UNT Libraries Government Documents Department

Brake Shoe

Description: Patent for an M.C. B.-type reinforced brake shoe that can be manufactured in small foundries without special machinery.
Date: November 14, 1916
Creator: Christensen, Jacob V. C. T.
Partner: UNT Libraries Government Documents Department

Pump

Description: Patent for improvements to pumps in working barrels, packing, and packing chambers, the purpose of which is to eliminate easily worn parts and improve the efficiency of these pumps, including illustrations.
Date: November 28, 1922
Creator: Kerr, Michael A.
Partner: UNT Libraries Government Documents Department

Pipe Tongs Support.

Description: Patent for pipe tongs supports to provide a pipe tongs support that will permit a pipe tongs to be so balanced that it will tend to maintain itself in a horizontal position which is the position in which its use is required.
Date: August 3, 1915
Creator: Hoffer, Temple B.
Partner: UNT Libraries Government Documents Department

Well Stuffing-Box.

Description: Patent for improvements on well stuffing boxes, particularly in packing the vertically reciprocating pump rod and keeping it packed over time, so that the stuffing box doesn't need to be dismantled for manual adjustments.
Date: November 16, 1915
Creator: Church, George W.
Partner: UNT Libraries Government Documents Department

Holder.

Description: Patent for improved book holder for holding down the leaves of an open book which can be adjusted to fit various widths.
Date: July 2, 1918
Creator: Duckett, J. L.
Partner: UNT Libraries Government Documents Department

Valve.

Description: Patent for a safety valve that closes a conduit when a change in pressure occurs that shuts off the supply of fluid (or gas) until the valve is manually reset.
Date: May 26, 1914
Creator: Ruffner, Earl S.
Partner: UNT Libraries Government Documents Department

Water-Motor.

Description: Patent for a more powerful and efficient water motor which is durable and comparatively affordable to manufacture.
Date: August 16, 1921
Creator: Brady, Enoch J.
Partner: UNT Libraries Government Documents Department

Glass Manufacture dated November 5, 1918

Description: Patent for apparatus to improve the overall quality and efficiency of glass production. This includes both window and sheet glass. It assists in developing sheet glass through blowing, drawing, and ladling.
Date: November 5, 1918
Creator: Thomas J. McCoy
Partner: UNT Libraries Government Documents Department

Fishing Tool for Wells

Description: Patent for device that will remove broken drill heads or foreign matter from drill well.
Date: December 19, 1916
Creator: Sheldon, Ward J.
Partner: UNT Libraries Government Documents Department

Pipe-Tongs.

Description: Patent for improvement upon the use of chain tongs. The invention "permits the application of a very strong rotative force" (lines 11-12), "produce rotation of a pipe in either direction" (lines 17-18), and "provides a chain tong which will not crush the pipe..." (lines 22-23).
Date: May 12, 1914
Creator: McLeod, Rueben A.
Partner: UNT Libraries Government Documents Department

Door-Check.

Description: Patent for a door check that will be able to hold the door in any desired position to which it may be moved and it will prevent the slamming or sudden closing of the door.
Date: November 27, 1917
Creator: Winfrey, Edgar M. & Pike, John J.
Partner: UNT Libraries Government Documents Department

Cotton-Threshing Machine.

Description: Patent for an improvement to cotton-threshing machines that threshes "the cotton crop by extracting and separating the cotton locks from the bolls and stalks" (lines 13-15). This patent includes instructions and illustrations.
Date: November 27, 1917
Creator: Patterson, Warren A. & Kemp, Joseph A.
Partner: UNT Libraries Government Documents Department

Lavatory.

Description: Patent "relates to improvement in wash basins, tubs, sinks, trays, and the like and especially with reference to the provision of improved means for flushing the waste pipe or duct thereof and for preventing overflow in the case the supply of faucet or faucets should be left running..."
Date: April 6, 1915
Creator: Kavanagh, Joseph A.
Partner: UNT Libraries Government Documents Department

Dry Closet

Description: Patent for a dry closet.
Date: November 28, 1916
Creator: Pyle, Eben W.
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

Power-Transmitting Mechanism.

Description: Patent for an improved power-transmitting mechanism for, "bicycles, motorcycles and similar vehicles whereby rotation is transmitted to the driven wheel without the use of chains, belts, gears or analogous elements commonly employed for this purpose" (lines 14-18). The invention will maximize driving power while minimizing energy expenditure (lines 19-24), employ a propelling mechanism, and reduce manufacturing and repair costs.
Date: March 11, 1919
Creator: Grubb, Orin A.
Partner: UNT Libraries Government Documents Department

Well-Drill Wrench.

Description: Patent for a well drill wrench that is easily adjustable for different sized drill chucks. Its designs makes rotating the wrench smoother and less likely to slip off of drill chucks.
Date: November 8, 1921
Creator: Ellinger, 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

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

Valve Structure

Description: Patent for valve improvements in controlling the flow of fluids under high pressure.
Date: August 30, 1921
Creator: Anderson, Jalmer
Partner: UNT Libraries Government Documents Department

Oil Burner

Description: Patent for simple, efficient oil burner.
Date: February 20, 1917
Creator: Latshaw, Benjamin J.
Partner: UNT Libraries Government Documents Department
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