Resource Type

Wire-Winding Machine (open access)

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. (open access)

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