. The railroad and engineering journal . ks to it by A. F. Smith, both of whichwill be described in another chapter. With a single axle-truckin front of the cylinder, the front driving-wheels can be placed 46 THE RAILROAD AND [January, 1887. farther forward than they can be on a ten-wheeled engine witha. four-wheeled truck, one axle of which is in front, and an-other behind the cylinders. Consequently Mogul engineshave a larger proportion of their weight on the driving-wheelsthan ten-wheeled engines have, and this has brought the Moguls in favor for freight service. The demand for more powerfu
. The railroad and engineering journal . ks to it by A. F. Smith, both of whichwill be described in another chapter. With a single axle-truckin front of the cylinder, the front driving-wheels can be placed 46 THE RAILROAD AND [January, 1887. farther forward than they can be on a ten-wheeled engine witha. four-wheeled truck, one axle of which is in front, and an-other behind the cylinders. Consequently Mogul engineshave a larger proportion of their weight on the driving-wheelsthan ten-wheeled engines have, and this has brought the Moguls in favor for freight service. The demand for more powerful locomotives naturally sug- ary freight and passenger service. Besides these there has beena demand for locomotives for special service, such as switch-ing, urban and suburban traffic, and for narrowness of whichmade it essential to design special methods of construction. The most common plan used for switching-engines is thaiwhich has four-coupled wheels, both axles being placed be-tween the furnace and smoke-box. Separate tenders are. Kg. 26. gested coupling four pairs of wheels, and led to the con-solidation type, which his eight drivinsj-wheels coupled, anda pony truck in front of the cylinders. In iSSo. the firstconsolidation engine built at the Rogers Works wascompleted. The types of engines which have been described, are theprincipal ones which have been evolved in this country for ordin- furnished with locomotives of this kind, or the tanks may beplaced on top of the boilers. When more powerful engines are required, six-coupledwheels are used with the axles, all between the furnace andsmoke-box. Some six-coupled engines have been built withan axle behind the fire-box, but with this arrangement theoverhanging weight of cylinder, smoke-box, etc., brings an ENGINEERING JOURNAL. 47
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
