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Shipping-Basket
Patent for a shipping basket designed to keep contents secure and undamaged.
Date:
September 6, 1921
Creator:
Pitts, William L.
System:
The Portal to Texas History
Switch.
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.
System:
The Portal to Texas History
Railroad-Tie
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
System:
The Portal to Texas History