International Library of Technology · Scranton, International Textbook Co. · leaf 361
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 boaid, into which… … Fig. 23. in another diagram. 12 is the door, or cover, that swingsback as shown, and 10 is the bolt and wrench used for hold-ing the pole piece in place Avhen it is swung over; 5, 5 arethe arc guards, mounted in the way previously described.It will be noticed that both the power drum and the…
Electrical engineering
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