Description: Patent for a trolley mechanism that is a pivoting "yoke adapted to normally follow being swerved out of line when the car is going around curve of the trolley wire; to prevent catching on cross-wires in case the trolley wheel should leave the line-wire; and to adjust the amount of pivotal action of said yoke with regard to the trolley pole" (lines 13-20).
Date: November 21, 1893
Creator: Fuller, James T.
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Partner: UNT Libraries Government Documents Department