. Electric locomotive haulage in and about mines . PLATE 12 PLATE 12B. Part II. The General Construction of Electric Mine Locomotives The discussion of the general construction of electric minelocomotives will be taken up under two heads,namely:- the con-struction of trolley locomotives and of storage battery loco-motives. The two-motor type of locomotive has come to be generallyrecognized as the standard type for mine haulage work,all man-ufacturers having adopted this type as standard with the exceptiof the Goodman Mfg. Chicago,which company still retainsthe single motor type in st
. Electric locomotive haulage in and about mines . PLATE 12 PLATE 12B. Part II. The General Construction of Electric Mine Locomotives The discussion of the general construction of electric minelocomotives will be taken up under two heads,namely:- the con-struction of trolley locomotives and of storage battery loco-motives. The two-motor type of locomotive has come to be generallyrecognized as the standard type for mine haulage work,all man-ufacturers having adopted this type as standard with the exceptiof the Goodman Mfg. Chicago,which company still retainsthe single motor type in stock. There are two general forms ofthe two-motor type of locomotive,namely:- one in which the sideframes are placed inside of the wheels ( see Plate 12 A ),andthe other in which the side frames are placed outside of the the maximum space between the wheels for the motors and otherparts of the equiptmont,and also renders the journal boxes veryaccessible and makes somewhat more space at the operating endof the machine for the motorman. This type has objections
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