f a stem, around which is a coiled ohms resistance, 6 the bar of hardened steel, and ca of which is journaled in spring, one end resting in the bottom of the opening battery of four or five elements. A key is placed in the the clamp that holds and the other end against a nut screwing on the stem… … rapidity to render them practically continuous, and if tion, the poles exchange position, they can be corrected so that pulsations of the same another electrical impulse will be name will always flowin the same direction, the current phragm in its upper position is set to a normal tension induced,…
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