Resource Type

Wheelwright-Machine (open access)

Wheelwright-Machine

Patent for a hand-operated wheelwright machine designed for drilling the tires of a vehicle for means of holding tire retaining bolts.
Date: August 20, 1907
Creator: Robbins, James M.
System: The Portal to Texas History
Telegraph and Telephone Insulator. (open access)

Telegraph and Telephone Insulator.

Patent for a telegraph and telephone insulator, which prevents the wires from slipping out of the insulator by the use of grooves placed in the holder.
Date: October 15, 1907
Creator: Copper, John A.
System: The Portal to Texas History