Mowat, Harold, 1883- · London : H. Frowde · leaf 72
electrolytic break ifthis lever is turned to the left, one or two poles beingutilized as desired. ACCESSORIES 57 In the middle of the table is the control switch.When the handle is vertical the two levers makecontact with two studs, and the current goes tothe coil, and when it is pulled across the… … Fig. 16. Control Switch. to the coil. On the right side of the table thebreak is placed, which is of the motor-magnetictype. The rate of interruption is controlled bysimply moving a vulcanite handle up or down—upto increase the rate, and down to diminish it. It will be readily understood how very…
X-rays
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