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Adding-Machine

Description: Patent for an adding machine that is simple and can be manufactured at a small cost.
Date: September 7, 1915
Creator: McCaleb, Walter F.
Partner: UNT Libraries Government Documents Department

Aeroplane

Description: Patent for an aeroplane. The invention is designed to vary the curvature of the plane from front to rear and by this means the plane may be so adjusted as to reduce the "head resistance" to a minimum. The invention is also trying to find the suitable means for manipulating the adjustable sections whereby the movable sections. This invention aims to provide a machine that is strong, durable, efficient, and comparatively simple to construct.
Date: September 7, 1915
Creator: McCarroll, Frank
Partner: UNT Libraries Government Documents Department

Combined Rake and Portable Baling-Press

Description: Patent for a "combined rake and portable baling-press, the objects in view being to provide a machine of the above class of comparatively cheap and simple construction and adapted to rake, elevate, deliver, pack, and bale hay and to apply the binding wires to the bales as formed in one continuous operation" (lines 8-15).
Date: September 7, 1892
Creator: Shero, Christopher C.
Partner: UNT Libraries Government Documents Department

Composition of Matter for Manufacturing Calcium Carbid.

Description: Patent for a "new and useful Composition of Matter for Manufacturing Calcium Carbid" (lines 5-7) that will aid in the commercially successful production. Patent includes specifications for the composition of matter.
Date: September 7, 1897
Creator: Blum, Sylvain
Partner: UNT Libraries Government Documents Department
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