. The railroad and engineering journal . ^, Fig. )>!■ e -^l-Fg- 308. J Fig. 309. the upper ends of the links loward a a or b b. according to thedirection of inclination of the curve, and the bolster //, center-pin S. and king-bolt A A, all retain their central position inrelation to the engine. When the truck wheels move laterallytheir axle, instead of being parallel to the driving-axle, becomesinclined to it, as shown by the dotted center lines ^< and c d,fig. 276, and on a curve the position of the center line of the QtTESiioN 491. IV/iat advantage Joes the use of a pony ti tickg
. The railroad and engineering journal . ^, Fig. )>!■ e -^l-Fg- 308. J Fig. 309. the upper ends of the links loward a a or b b. according to thedirection of inclination of the curve, and the bolster //, center-pin S. and king-bolt A A, all retain their central position inrelation to the engine. When the truck wheels move laterallytheir axle, instead of being parallel to the driving-axle, becomesinclined to it, as shown by the dotted center lines ^< and c d,fig. 276, and on a curve the position of the center line of the QtTESiioN 491. IV/iat advantage Joes the use of a pony ti tickgive over one with four wheels ? Answer. It permits of the front driving-wheels being placedcloser to the cylinders than is possible when one pair of thetruck wheels is behind the cylinders, as it usually is when afour-wheeled truck is used. If the driving-wheels are locatednearer to the cylinders they will bear a larger proportion Vol. LXII, No. ir.] ENGINEERING JOURNAL. SIS of the weight of the engine than they do if they are furtherback. CHAPTER
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Keywords: ., bookcentury1800, bookdecade1880, bookidrailroadengi, bookyear1887
