Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 543
metrically opposite spaces, but itwill be observed that, although each space contains a coil,only half of the commutator bars can be c(mnected with thisseries. Therefore, a second series of coils is placed uponthe armature, as shown in dotted lines. These coils arearranged in the spaces at the side… … ELECTRIC LIGHTING. 521 The manner of connecting the terminals of these coilswith the commutator bars is clearl) illustrated in Fig. 505,which is a perspective view of the end of the armature. The Fig. 503.
Physics · Lantern projection · Electric apparatus and appliances
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