Cotton Chopper (open access)

Cotton Chopper

Patent for a cotton chopper. Illustrations included.
Date: October 17, 1905
Creator: Coldiron, George Gipson
System: The Portal to Texas History
Recharging-Valve. (open access)

Recharging-Valve.

Patent for a recharging valve "to permit recharging the auxiliary reservoirs of an automatic air-brake system without involving the release of the brakes." (lines 8-11) including instructions and illustrations.
Date: October 3, 1905
Creator: Williams, Leonard F.
System: The Portal to Texas History