. The railroad and engineering journal . Ji333__. double expansion in America : Grate surface, ; heating surface (fire-box, 137 ; tubes, 1,540), 1,; working pressure, 180 lbs.; high-pressure cylinder,20 X 24 in.; low-pressure cylinder, 29 x 24 in.; ratio ofvolumes, i : ; diameter of drivers, 68 in. ; weight on Generally the size of the cylinders is limited more bythe position of the frames than any other cause, and there-fore it is usually more easy to increase it in new enginesthan in old engines which have been changed. Many ways have been considered of giving the lar
. The railroad and engineering journal . Ji333__. double expansion in America : Grate surface, ; heating surface (fire-box, 137 ; tubes, 1,540), 1,; working pressure, 180 lbs.; high-pressure cylinder,20 X 24 in.; low-pressure cylinder, 29 x 24 in.; ratio ofvolumes, i : ; diameter of drivers, 68 in. ; weight on Generally the size of the cylinders is limited more bythe position of the frames than any other cause, and there-fore it is usually more easy to increase it in new enginesthan in old engines which have been changed. Many ways have been considered of giving the large iii tttt ftAlLftOAD AM© [Mareli, iSgii cylinder sufficient size, not only lo obtain the necessarypower, but also to realize a ratio of volumes which willpermit us, on the one hand, to simplify the distribution and,on the otlier, to utilize properly the higher pressures whichthe present tendency is to employ on railroads. I havesuggested several years ago the plan, shown in figs. 19and 20, of doubling the large cylinder and replacing it bytwo
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
