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Plaiting-Machine.

Description: Patent for a machine that folds or plaits cloth in the desired style.
Date: August 16, 1921
Creator: Odle, Ophelia & Odle, Leo Estelle
Partner: UNT Libraries Government Documents Department

Tool-Handle.

Description: Patent for a hammer handle with an inner reinforcing plate which is strong and slightly flexible, so as to "be practically unbreakable" (lines 25-26) and "afford the necessary yielding action or spring to avoid jarring the hands of the operator while in use" (lines 26-29). Application of the design principle to other similar tools, such as "hatchets, axes, shovels, spades, hoes, etc." (lines 22-23), is also suggested.
Date: August 23, 1921
Creator: Johnson, George T.
Partner: UNT Libraries Government Documents Department

Rock-Drill

Description: Patent for a rock drill design for quick drilling.
Date: August 16, 1921
Creator: Alford, Allen
Partner: UNT Libraries Government Documents Department
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