Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 60
read on it andsome powdered electrical amalgam sprinkled on. Theyare-then pressed against the glass and the springs ad-justed to keep them there. When the plate is rapidly /evolved the friction betweenthe glass and the amalgam coated surface of the rubber 60 ELECTRICAL MACHINES 61 produces… … Fig. 19. Simple Electrical Machine. The + charge is carried around on the glass in -frontof the comb which is connected with the prime conductorrepelling a + charge to the knob of the conductor andattracting the — into the comb. The effect of the spikesis to emit a —ly charged electrical wind which…
Electricity
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