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 554
these insulators and stand, wheninstalled, about one inch above the rail. The four arms, G, are secured to the ties by means of the bosses, H, thusreducing to a minimum the labor of leveling the boxes and avoiding thenecessity of special ties. WESTINGHOUSE SYSTEM. 541 Mains and Wiring-. The… … ruu u u uuu-u Fig. 102. Track Equipped for Track Return Circuit. No additional wires are used to interconnect the coils or contacts of ad-jacent switches. The Contact Bars are of steel, of ordinary T section. They are sup-ported from the car trucks by two flat steel springs and adjustable…
Electrical engineering
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