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Trolly Wheel and Harp.
Patent for trolley wheels, where "the transmission of the current through the wheel to the harp is maintained at the maximum and the necessary wear of the relatively movable parts reduced to a minimum" (lines 11-15).
Date:
May 7, 1912
Creator:
Neighbour, William W.
System:
The Portal to Texas History
Mold for Typographical Casting-Machines.
Patent for a mold for typographical casting machines which may be altered to produce slugs of different sizes.
Date:
April 7, 1914
Creator:
Diaz, Pascual M.
System:
The Portal to Texas History