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 503
tors. It is theindependent means of transmitting aninitial and governing impulse from anyone of a number of points. Operation. The specific operation of the appa-ratus controlled by these circuits is asfollows: On each of the fully equipped carsthere are two main motors. Each mo-tor has a single… … HM^HB^^^MI^H THE SPRAGUE MULTIPLE UXIT SYSTEM. 491
Electrical engineering
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