Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 555
railway work, the switch-boxes are preferable installed outside the track, Avhile the buttons areplaced between the rails and mounted on a light metal tie, as shown in Fig. 542 ELECTRIC STREET RAILWAYS. The operation of the system is exactly the same as in open-track work.Connecting wires pass from… … CHANNEL IRON Fig. 104. Section of Track Equipped for Street Railway Service. When, as is sometimes necessary, the buttons are placed in a single row,it is necessary that the pick-up current should be of the same voltageas that of the main circuit, and consequently the car-wiring indicated inFig. 96…
Electrical engineering
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