Car-Replacer (open access)

Car-Replacer

Patent for improved replacers for derailed railroad cars, complete with illustrations.
Date: April 13, 1915
Creator: Duval, Allen
System: The Portal to Texas History
Air-Brake. (open access)

Air-Brake.

Patent for train air-brakes to provide set brakes and same auxiliary pressure on all cars regardless of the brake cylinder piston travel distance.
Date: January 13, 1914
Creator: Wolf, Gustav B.
System: The Portal to Texas History
Vise and Saw-Clamp (open access)

Vise and Saw-Clamp

Patent for improvements to vise and saw clamps complete with illustration.
Date: April 13, 1915
Creator: King, William T.
System: The Portal to Texas History