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Tool-Joint

Description: Patent for tool joints to be used in detachable connection between lengths of pipe. Specifically used with drill pipe for drilling deep wells for oil, gas, or water.
Date: August 2, 1921
Creator: Thomas, Avery H.
Partner: UNT Libraries Government Documents Department

Process of Treating Wood.

Description: Patent for less expensive chemical wood treatment that will not leach out, will make wood more durable, and preserve wood for multiple uses including marine construction.
Date: August 23, 1921
Creator: Chandler, Asa C. (Asa Crawford), 1891-1958
Partner: UNT Libraries Government Documents Department

Bandage

Description: Patent for a bandage made of elastic material which includes a flap that can be fastened, or unfastened, and which acts as a holder for an absorbent material that can be replaced.
Date: August 9, 1921
Creator: Kirwan, Leah M.
Partner: UNT Libraries Government Documents Department

Automobile-Signal.

Description: Patent for a visual indicator signal for motor vehicles.
Date: August 9, 1921
Creator: Cobb, Albert C.
Partner: UNT Libraries Government Documents Department

Wrench

Description: Patent for wrenches that provides a means for engaging faces of the jaws to be renewed or changed. This improvement also allows for secure placement without loss of motion.
Date: August 2, 1921
Creator: Belcher, Mark
Partner: UNT Libraries Government Documents Department

Process of Preserving Wood

Description: Patent for the Process of Preserving Wood, particularly to means for treating railway ties to prevent the fungi of decay.
Date: August 30, 1921
Creator: Moore Stuart .B
Partner: UNT Libraries Government Documents Department

Roller Boring-Drill.

Description: Patent for a roller boring-drill with improved arrangement of cutters on the head, and formation of teeth on the cutters. This new head design is better for drilling formations that are not brittle.
Date: August 23, 1921
Creator: Fletcher, Harold W.
Partner: UNT Libraries Government Documents Department

Printing-Case

Description: Patent for a printing case which can hold a camera and other appliances for printing photographs. This printing case can also be compactly folded for easy carry and transportation.
Date: August 9, 1921
Creator: Kelly, Leo A.
Partner: UNT Libraries Government Documents Department

Farm-Gate

Description: Patent for an improved hinge mounting for a gate to swing and to served as a stay or brace connecting a pair of posts supporting the gate. Also, a provision of a novel mounting and operating means for such a gate, including springs for raising the operating levers on the gate used to move the gate.
Date: August 23, 1921
Creator: Rawley, Fleming C.
Partner: UNT Libraries Government Documents Department
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