Resource Type

Automatic Switch (open access)

Automatic Switch

Patent for an automatic switch for street railways.
Date: November 30, 1909
Creator: Godoy, Jose Ma
System: The Portal to Texas History
Reinforced Belt. (open access)

Reinforced Belt.

Patent for a reinforced belt made with power transmission in mind. It has an improved body which is made up of steel U-shaped chain links embedded in flexible belt material. The belt is strong, flexible, durable, simple, and inexpensive.
Date: November 30, 1920
Creator: Shiner, Elliot E.
System: The Portal to Texas History
Device for Sharpening Razors. (open access)

Device for Sharpening Razors.

Patent for a device for sharpening razors consisting of razor strop and hone, which does not have to be hung on a hook to use.
Date: November 30, 1909
Creator: Dunn, William Harrison
System: The Portal to Texas History