International Library of Technology · Scranton, International Textbook Co. · leaf 465
7b Ground. Fig. 42. position on which the switch rests is clearly shown by a dialnumber that appears through a hole in the cover. In bothviews of Fig. 43, the SMdtch is on the third point; on thispoint, the current goes in on the right-hand side of theswitch at the post marked T. The three arms a,… … Fig. 43. all connected together so that the current splits; part of itgoes across the b arm to post 1 and thence to the circuitthrough the top part of all the heaters; the other part goesacross arm c to post 2 and thence to the circuit through the § 25 ELECTRIC RAILWAYS. 33 bottom pait of all the…
Electrical engineering
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