Resource Type

Car-Door Mechanism (open access)

Car-Door Mechanism

Patent for a sliding car door mechanism.
Date: November 26, 1912
Creator: Gradick, Wiley Sr.
System: The Portal to Texas History
Grain-Door (open access)

Grain-Door

Patent for a grain car door that keeps the grain securely in the railroad car.
Date: November 26, 1912
Creator: Gradick, Wiley, Sr.
System: The Portal to Texas History
Fish Hook (open access)

Fish Hook

Patent for a fish hook. Illustration included.
Date: April 26, 1910
Creator: Roberson, Elige L.
System: The Portal to Texas History
Door-Operator. (open access)

Door-Operator.

Patent for a device that is a means of mounting a train car door by which it may be easily opened or closed, and especially easily fixed when stuck.
Date: August 26, 1913
Creator: Gradick, Wiley, Sr.
System: The Portal to Texas History