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Concrete Composition

Description: Patent for a formulation of waterproof concrete that utilizes lava rocks.
Date: December 17, 1918
Creator: Charles E. Barglebaugh
Partner: UNT Libraries Government Documents Department

Interest-Computing Device.

Description: Patent for a mechanical interest computing device, which is designed to be simple to build, maintain, and operate.
Date: December 10, 1918
Creator: Harris, Ira S.
Partner: UNT Libraries Government Documents Department

Stovepipe-Fastener.

Description: Patent for a stovepipe fastener for the purpose of securing the end of the stovepipe into a sheet metal thimble and preventing the stovepipe being pulled out of the chimney and into the room.
Date: December 31, 1918
Creator: Schuch, Anthony
Partner: UNT Libraries Government Documents Department

Disintegrating-Machine.

Description: Patent for "bodily revolving a mass of fibrous material over a disintegrating member whereby a shearing action is had and the material disintegrated." (lines 13-16)
Date: December 3, 1918
Creator: Patterson, Warren A.
Partner: UNT Libraries Government Documents Department

Artificial Hand-Grip.

Description: Patent for an improvement to artificial hand-grips that includes a pair of jaws that attaches to an artificial arm and allows wearers to perform various activities.
Date: December 31, 1918
Creator: Corley, Quentin D.
Partner: UNT Libraries Government Documents Department
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