Scientific American. [SEPTEMBER I, 1877. 130 process of winding them. [Continued from first page.) of the commutator slips over the shaft and rests upon the thimble, and is pressed against this brass washer; the other half of the commutator slips upon the shaft, but there is … placed between the two halves a thin rubber washer, so as to insulate them from each other. The ends of the wires rangement of Capstans worked by men or horses. One of from the armatures are connected to the shaft, and through the shaft to that half of the commutator which bears upon the great…
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