Chicago : [Popular Engineering Pub. Co.] · leaf 280
ht from this combination becomes a very Motors warm, soft, mellow tone that is most pleas- Individual motor-drive of sewing ma- ing Every shadow cast by any object in this chines, when equipped with the proper con- light has a fringe of red, yellow or green, trolling device (to easily start, stop… … FOOT CONTROL FOR SEWING MACHINE MOTOR operated sewing machine in which the op- erator by a slight pressure on the treadle of the machine can vary the speed, and start and stop the motor at will. The controller here used is mounted in a neat case under the machine board, a rod connecting it to the…
Electricity
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