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Automatic Pipe Coupling

Description: Patent for improvement on the methods of controlling oil flow.
Date: September 2, 1919
Creator: Childs, William L.
Partner: UNT Libraries Government Documents Department

Valve Remover.

Description: Patent for "an improvement in combination tools...adapted for use with internal combustion engines...mechanism is provided for assisting in valve removing." [lines 8-14]
Date: December 2, 1919
Creator: Ingram, George W.
Partner: UNT Libraries Government Documents Department

Line-Shaft Oiler

Description: Patent for improvements to line-shaft oilers to more easily oil bearings and prevent oil waste.
Date: April 2, 1918
Creator: Collins, Joseph P.
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 Capping Device.

Description: Patent for "new and useful improvements in a well capping device." [lines 9-10]
Date: December 2, 1919
Creator: Thrift, Homer C.
Partner: UNT Libraries Government Documents Department

Drill Bit for Wells

Description: Patent for drill bit for drilling wells.
Date: January 2, 1917
Creator: Martin, Robert D.
Partner: UNT Libraries Government Documents Department

Oil Thief

Description: Patent for Oil Thief
Date: January 2, 1917
Creator: Kaul, Walter H.
Partner: UNT Libraries Government Documents Department

Notching Means for Wire-Winding Machines

Description: Patent for a notching means for wire winding machines for use in making well screens.
Date: May 2, 1911
Creator: Fisk, Lawnnedo
Partner: UNT Libraries Government Documents Department

Pattern and Match Plate

Description: Patent for a pattern and match plate for use in making car wheel chill segments more quickly and with less skilled labor.
Date: August 2, 1910
Creator: Voight, Philip & Kornmayer, Christian
Partner: UNT Libraries Government Documents Department

Bale-Forming Press.

Description: Patent for a new and improved hay bale forming press that compresses hay or other similar material into a bale and secures it with wire or chords that are tied around the bale, including illustrations.
Date: November 2, 1915
Creator: Dudley, Andrew T.
Partner: UNT Libraries Government Documents Department

Single Trigger Mechanism For Double-Barrel Guns

Description: Patent for "new and useful improvement in Single Trigger Mechanism For Double-Barrel Guns (lines 5-7)."
Date: April 2, 1918
Creator: Lindsay, Charles W.
Partner: UNT Libraries Government Documents Department

Garment-Protector.

Description: Patent for an easily detachable garment protector "for use with trousers and overalls to protect them from wear and from becoming soiled while in use" (lines 10-13) including illustration.
Date: July 2, 1918
Creator: Spencer, William Levi
Partner: UNT Libraries Government Documents Department

Revolving-Cutter Rotary Boring-Drill.

Description: Patent for an improved rotary boring drill, "particularly to drills of that type which are provided with cutters of a flat, circular plate shape" (lines 16-18), designed to reduce wear from repeated use.
Date: November 2, 1915
Creator: Reed, Clarence Edward
Partner: UNT Libraries Government Documents Department

Revolving-Cutter Rotary Boring-Drill

Description: Patent for improvements to a rotary boring drill of the type which uses circular plate or disk shaped cutters, including illustrations.
Date: November 2, 1915
Creator: Reed, Clarence E.
Partner: UNT Libraries Government Documents Department

Device for Forming Screens

Description: Patent for a device for forming screens that consist of perforated pipes and screening wires, which will prevent displaced wires and torn pipes during use.
Date: December 2, 1919
Creator: Edwards, Charles R.
Partner: UNT Libraries Government Documents Department

Gate Operating and Locking Means.

Description: Patent for an "invention that relates to new and useful improvements in gates and particularly that class which swing in a vertical plane." (Lines 12-14)
Date: March 2, 1915
Creator: Hoffman, F.
Partner: UNT Libraries Government Documents Department

Roller Boring-Drill

Description: Patent for a roller boring drill in which "the cutting rollers are arranged on the drill in a novel manner." Object of invention is to keep the drill centered in the hole to prevent wobbling.
Date: March 2, 1915
Creator: Hughes, Howard R.
Partner: UNT Libraries Government Documents Department

Roller Boring-Drill

Description: Patent for roller boring drill that provides the cutting device to maintain clearance of the drill-head and can be adjusted to compensate for wear.
Date: March 2, 1915
Creator: Hughes, Howard R.
Partner: UNT Libraries Government Documents Department

Fluid-Clutch

Description: Patent for a fluid-clutch that prevents jarring when the clutch is taken off.
Date: July 2, 1912
Creator: Carpenter, John C.
Partner: UNT Libraries Government Documents Department

Expansive and Contractive Well-Drill

Description: Patent for improvements for expansive and contractive well drill involving improvements to drill bits.
Date: July 2, 1918
Creator: Carter, Oscar Martin
Partner: UNT Libraries Government Documents Department

Flap-Valve

Description: Patent for a flap valve for use in blowing engines that increases the life of the valve plates.
Date: April 2, 1912
Creator: Scott, Clarence N.
Partner: UNT Libraries Government Documents Department

Automobile-Lock.

Description: Patent for a padlock and mount for the steering column of an automobile.
Date: December 2, 1919
Creator: Ritchie, Allen A.
Partner: UNT Libraries Government Documents Department
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