Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 507
f the first wire, 2and 6 representing the ends of the second wire, 3 and 7the third, and 4 and 8 the fourth; 15 and 16 are curvedbrass pieces capable of being plugged into connection withthe blocks just mentioned, by means of screw plugs, shownin place in the engraving. The pieces, 15 and 16, are… … Switch of the Magneto-Electric Machine. wire with the metallic boss of the rubber wheel upon whichthe switch is mounted ; the block, 18, being connected by awire with a brass ring, Q, on the rubber support of thecommutator. Inside the blocks, i to 8, there are six metallic blocks, 9,10, II, 12, 13,…
Physics · Lantern projection · Electric apparatus and appliances
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