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Fan for Sewing-Machines
Patent for a fan for sewing machines. Illustrations included.
Date:
May 21, 1912
Creator:
Ownby, Albert W.
System:
The Portal to Texas History
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
Washing-Machine
Patent for a washing machine that uses jets of boiling water and steam to clean clothes.
Date:
May 28, 1912
Creator:
Dickey, John S.
System:
The Portal to Texas History