International Library of Technology · Scranton, International Textbook Co. · leaf 360
Fig. 21. 34 ELECTRIC RAILWAYS. 31 the reverse drum ^; 9, 9 are the fingers or wipers that makecontact with the power drum; 6 is the bloAv-out magnet.The reverse drum and its fingers have no blow-out coil. … Fig. 22. because the reverse drum cannot be moved while the cur-rent is on, and there is, therefore, no arc there to be put out.7, 7 are the cut-out switches, by means of which a disabled /. IV.—26 32 ELECTRIC RAILWAYS. 24 motor may be cut out; 8 (in the lower right-hand corner) isthe conuectioii…
Electrical engineering
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