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Switch.

Description: Patent for an electric switch that is used in conjunction with a signaling device that allows for lights to be activated synchronously or asynchronously via the use of two levers.
Date: September 6, 1921
Creator: Riggs, Fletcher S.
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

Shipping-Basket

Description: Patent for a shipping basket designed to keep contents secure and undamaged.
Date: September 6, 1921
Creator: Pitts, William L.
Partner: UNT Libraries Government Documents Department
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