Artificial Leg. (open access)

Artificial Leg.

Patent for an artificial leg that has an improved ankle joint and a socket for the stump. It is also more comfortable than other artificial legs.
Date: February 12, 1895
Creator: Chapman, Edward
System: The Portal to Texas History
Container for Quick Tire Patches. (open access)

Container for Quick Tire Patches.

Patent for quick-tire patches for repairing blowouts. Abrasive surface provides a more convenient way to clean tire patches than the usual sandpaper.
Date: February 12, 1918
Creator: Duffy, C.O.
System: The Portal to Texas History
Elevator Signal System. (open access)

Elevator Signal System.

Patent for an elevator signaling system that helps maintain proper spacing between elevator cars. This system provides signals to the elevator operator to allow him to know where all other elevator cars are located in real time.
Date: February 12, 1918
Creator: McNabb, Alvin C.
System: The Portal to Texas History
Cable Reeling and Pulling Truck (open access)

Cable Reeling and Pulling Truck

Patent for the cable reeling and pulling truck. This invention was made to ease the process of cable reeling and pulling by trucks and for improvements to the safety of this process. Illustrations are provided.
Date: February 12, 1918
Creator: Alberts, James
System: The Portal to Texas History
Baling Press (open access)

Baling Press

Patent for a baling press. Illustrations included
Date: February 12, 1907
Creator: Stopple, John J.
System: The Portal to Texas History