. Electric railways, theoretically and practically treated . ges possessedby the former. The operation of an electric locomotive ismuch simpler and quicker ; the acceleration more smooth,and, in comfort, the electric locomotive is free from escapingsteam, excessive heat, coal dust, and ashes, characteristicof steam locomotives. Until quite recently electric locomotives were limited towhat is termed short-haul traction, or operating overshort distances. With the electrification of the New York ELECTRIC LOCOMOTIVES. 253 Central Railroad, new departures were made in the trac-tion field, heavy ele
. Electric railways, theoretically and practically treated . ges possessedby the former. The operation of an electric locomotive ismuch simpler and quicker ; the acceleration more smooth,and, in comfort, the electric locomotive is free from escapingsteam, excessive heat, coal dust, and ashes, characteristicof steam locomotives. Until quite recently electric locomotives were limited towhat is termed short-haul traction, or operating overshort distances. With the electrification of the New York ELECTRIC LOCOMOTIVES. 253 Central Railroad, new departures were made in the trac-tion field, heavy electric locomotiv^es superseding the steamlocomotives for express service within approximately 34miles of the city center. Electric locomotives may be divided into two distinctclasses, depending upon their usage. They are employedfor surface work, such as switching trains, in tunnels wheresmoke is objectionable, and for industrial purposes, or theyare used for subsurface work such as mining. Consideringsurface-railway locomotives, their general design may be. Fig. 158.—LOCOMOTIVE FRAME. further classified into heavy railroad or trunk-line serviceand into light railway practice. Mining Locomotives. — Electric locomotives for miningpurposes should be of a compact design, making themadaptable to low and narrow entries met with in thisclass of service. They should be well framed and built ina substantial manner, having no movable parts exposedwhich could be injured by obstructions or by falling the cost of attendance is the chief item of saving; withmining locomotives, they should be as simple in designas possible, the running parts being readily accessible. The Westinghouse-Baldwin Mining Locomotive. —The Westinghouse Manufacturing Company and the Bald- 254 ELECTRIC RAILWAYS. win Locomotive Works have, in conjunction, developed avariety of types of mining locomotives. The general de-sign of these locomotives is as follows (extracted fromcompanies bulletins): The loco
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