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Street-Traffic Signal

Description: Patent for a street traffic signal that can be operated from either the center of the intersection, or the curb.
Date: September 28, 1920
Creator: Miller, Thomas O.
Partner: UNT Libraries Government Documents Department

Demountable Rim

Description: Patent for a Demountable Rim designed for automobile wheels where a tire can be attached to the demountable rim, secured with fasteners on the rim then is can attach to the wheel itself.
Date: June 28, 1921
Creator: Beynon, Arthur B.
Partner: UNT Libraries Government Documents Department

Railway Switch.

Description: Patent for a railway switch to be operated by foot and without structural change to existing construction.
Date: February 28, 1922
Creator: Arteaga, Ignacio
Partner: UNT Libraries Government Documents Department

Mold for Casting the Hulls of Concrete Ships.

Description: Patent for an improved concrete hull mold that allows for durable and efficient hull molding without the need for scaffolding or disassembly once complete, with a dual-wall design that allows an intermediate work chamber during the molding process, including illustrations.
Date: June 28, 1921
Creator: Holmgreen, Julius H.
Partner: UNT Libraries Government Documents Department
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