7 Matching Results

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Wagon.

Description: Patent for "a vehicle such as a wagon with means for automatically pulling cotton bolls." (lines 16-17)
Date: July 12, 1921
Creator: Jennings, William L.
Partner: UNT Libraries Government Documents Department

Safety-Razor

Description: Patent for a razor held in place by a guard that protects the user against injury and the razor against dulling. The safety razor is easy to clean and is designed to be "cheaply and easily manufactured" (lines 21-22).
Date: July 5, 1921
Creator: Benton, Columbus A.
Partner: UNT Libraries Government Documents Department

Railroad-Tie

Description: Patent for a metallic tie and fastener designed to replace the wooden tie that was in general use. The purpose of this railroad tie is to secure the rail (preventing spreading) and and to prevent lateral moment (creeping) of the rail when the train is passing over.
Date: July 5, 1921
Creator: Jones, Charles James
Partner: UNT Libraries Government Documents Department

Traffic Signal System

Description: Patent for a Traffic Signal System for universal traffic management, i.e. automobiles, pedestrians, railway, street car, etc. The system has a warning signal to indicate danger and designate a safety zone. This system provides an audible as well as visual signal.
Date: July 21, 1921
Creator: Wetter, R. E.
Partner: UNT Libraries Government Documents Department

Sanitary Bed-Spring Cover.

Description: Patent for an invention that relates to the improvements in sanitary covers for attachment to the spring of a bed and the spring of the mattress. The sanitary cover provides a solution to repel vermin and noxious insects.
Date: July 5, 1921
Creator: Luedecke, Henry H.
Partner: UNT Libraries Government Documents Department

Paving Apparatus.

Description: Patent for "a device or apparatus for transmitting the vibrations of a vibrating machine...for the purpose of solidifying the paving by driving out air and water and surplus moisture" (lines 12-18), including illustration.
Date: July 5, 1921
Creator: Stubbs, Robert C.
Partner: UNT Libraries Government Documents Department
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