. Electric railways, theoretically and practically treated . Fig. 162.—STORAGE-BATTERY LOCOMOTIVE. inates the overhead trolley with its accompanying sup-porting structure, which would be a serious objection inmachine shops. Consideration, must be taken of theobjectionable features of storage batteries, such as fumes, ELECTRIC LOCOMOTIVES. 263 moisture, heavy depreciation, necessary care, etc. and 162 represent two types of industrial storage-battery locomotives built by the C. W. Hunt Fig. 163.—SWITCHING LOCOMOTIVE. Switching Locomotives. — These locomotives must be oflarge
. Electric railways, theoretically and practically treated . Fig. 162.—STORAGE-BATTERY LOCOMOTIVE. inates the overhead trolley with its accompanying sup-porting structure, which would be a serious objection inmachine shops. Consideration, must be taken of theobjectionable features of storage batteries, such as fumes, ELECTRIC LOCOMOTIVES. 263 moisture, heavy depreciation, necessary care, etc. and 162 represent two types of industrial storage-battery locomotives built by the C. W. Hunt Fig. 163.—SWITCHING LOCOMOTIVE. Switching Locomotives. — These locomotives must be oflarge capacity, with motor equipment designed for low-speed service, such as 10 miles per hour. A notableexample of the use of switching locomotives is that ofthe electric locomotives used in the Baltimore locomotives draw trains weighing 1,600 tons, at aspeed of 10 miles per hour up a grade of of 1%,and also moving up a grade of i^% at a speed of 9 264 ELECTRIC RAILWAYS. miles per hour, returning light. This service is main-tained hourly. The locomotives are composed of two units coupledtogether, each weighing 75 tons. The motor equipmentconsists of four General Electric No. 65 Railway Motors of225 horse-power apiece, making a total capacity of 1,800horse-power to a combined unit. The motors are de-signed to operate upon a 625-volt circuit. The caband locomotive body is well framed and built in a sub-stantial manner. Two of the first locomotives put intoservice are illustrated in F
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