Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 228
upplementary MOTION PICTURE ELECTRICITY 221 mercury electrodes is bridged by the mercury. Currentthen passes between the two mercury electrodes from thesource of e. m. f., and the little stream of mercury- whichbridges the space between the electrodes breaks with aspark as the bulb is returned to a… … Fig. 117 Diagram Showing Current Waves and Impressed ElectromotiveFo rce current load does not fall below the minimum requiredfor the arc. The action of the rectifier will be better understood byreference to the accompanying diagram, Fig. 117, of cur-rent waves and impressed electro-motive force.…
Motion picture theaters · Electric lighting
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