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3 Matching Results
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Wire-Winding Machine
Patent for a wire winding machine for making well screens.
Date:
August 20, 1912
Creator:
Eastham, Albert Lindsay
System:
The Portal to Texas History
Hoisting Drum.
Patent for an invention that "relates to improvements in hoisting drums" (line 15-16). Structure, objective, and illustrations of hoisting drums are included.
Date:
July 3, 1917
Creator:
Howard, Henry Fischer
System:
The Portal to Texas History
Cylinder for Cotton-Gins
Patent for a cylinder for cotton gins that can have one disk removed for repair without taking apart the whole cylinder.
Date:
August 13, 1912
Creator:
Fuller, James T.
System:
The Portal to Texas History