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Street Car Motor.

Description: Patent for a new and improved street-car motor. This design consists in "the shaft geared to an axle of the car, the friction-wheels free to slide on the said shaft and having the annular collars, the rods . . . connected to the said annular collars, and the lever connected to the said rods to move the friction-wheels toward or from each other" (lines 16-22).
Date: May 10, 1887
Creator: Sparks, John Parks
Partner: UNT Libraries Government Documents Department

Money Changer and Counter.

Description: Patent for a new and improved money changer and counter. This design "is to provide novel means for automatically assorting coins of different denominations . . . [and] to provide a series of graded pockets for the reception and retention of different coins of different denominations, and which will receive the coin only of the denomination for which it is provided; to provide novel means for discharging a coin of a given denomination from its pocket in order to make the proper change, and which will only discharge one coin at a time to prevent too much money from being delivered" (lines 15-30).
Date: May 10, 1887
Creator: Greer, John William
Partner: UNT Libraries Government Documents Department