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Friction-Clutch.
Patent for certain new and useful improvements in friction clutches, including instructions and illustrations.
Date:
November 22, 1898
Creator:
Clarke, George R.
System:
The Portal to Texas History
Clamp
Patent for a clamp. This device is employed to use a hoisting line attached to well casing or tubing. Illustration included.
Date:
November 22, 1910
Creator:
Athey, Earl
System:
The Portal to Texas History
Washboiler
Patent for improved Washboilers. The improvements provides a more efficient circulation of water to insure the proper cleaning of fabrics and prevent damage of the fabric.
Date:
February 22, 1921
Creator:
Patterson, Thomas Allison.
System:
The Portal to Texas History