. American engineer and railroad journal . ocomotive Co. In design these engines are practically du-plicates of a previous order of 25 of the same type which havebeen described and illustrated in this journal,* except that 5 ofthe present order, one of which is shown in the accompanyingillustration, are equipped with the Locomotive Superheater header, double loop design of superheater. The oiificials ofthe Chicago and Northwestern report that since they have been time, making up the 35 minutes in 76 miles. This performance ismore in view of the fact that on this particula
. American engineer and railroad journal . ocomotive Co. In design these engines are practically du-plicates of a previous order of 25 of the same type which havebeen described and illustrated in this journal,* except that 5 ofthe present order, one of which is shown in the accompanyingillustration, are equipped with the Locomotive Superheater header, double loop design of superheater. The oiificials ofthe Chicago and Northwestern report that since they have been time, making up the 35 minutes in 76 miles. This performance ismore in view of the fact that on this particular sectionthe saturated steam engines are never able to make up any the line from Chicago to Milwaukee, 85 miles, the that superheater engines save a ton of coal each way. The application of the superheater is clearly shown in the linedrawing. It is known as Type A, and embodies many interest-ing details of construction. In this type the upper part of theboiler is fitted with four rows of large smoke tubes. These tubes. P.^CII•[C TYPE LOeoMOl 1\K HITU in service the performance of the superheater engines has beenvery satisfactory, showing considerable saving in coal and wateras compared with locomotives of the same class using saturatedsteam. Up to within a comparatively recent period this road employedthe Atlantic type for fast, and the 4-6-0 for the heavier trains,but the increase in weight of trains generally necessitated theadoption of the 4-6-2 type. The first, and the non-superheat, ofthis class after being under observation for about a year demon-strated the correctness of the design, and with the exception ofchanges made necessary by the. installation of the superheaterno modifications whatever were made. The locomotives usingsaturated steam are equipped with cylinders 23 by 28 in., whilethe cylinders of the superheater engines are 25 in. in diameter,and 28 in. stroke. Both classes of engines are designed for aworking pressure of 190 l
Size: 3135px × 797px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
