Resource Type

Electromagnetic Ore-Separator. (open access)

Electromagnetic Ore-Separator.

Patent for an electromagnetic ore separator, which reduces the risk of any valuable particles falling with the waste mineral material below the magnetic surface.
Date: February 16, 1909
Creator: Charlton, Thomas
System: The Portal to Texas History
Harness. (open access)

Harness.

Patent for a harness for racing horses and buggies, which eliminates the jerky motion of the buggy from the movement of the horse.
Date: November 16, 1909
Creator: Crawford, Hezekiah H.
System: The Portal to Texas History