. Railway mechanical engineer . g of the damper,the saving in first cost and expenses for repairs will not benegligible, as well as the reduction in weight of about 660 II>. The drivers station, that used to be on the right side ofthe engine, has been transferred to the left. Bogie wheeUare, as a rule, braked. Tables I and II give the leading dimensions of the latest4-6-0 and 4-6-2 type locomotives different railwavsystems. Following are some details on the practice of eachrailway system: Table Dimensions of Recent 4-6 0 Type Locomotives, with Superheaters East. P. L. M.
. Railway mechanical engineer . g of the damper,the saving in first cost and expenses for repairs will not benegligible, as well as the reduction in weight of about 660 II>. The drivers station, that used to be on the right side ofthe engine, has been transferred to the left. Bogie wheeUare, as a rule, braked. Tables I and II give the leading dimensions of the latest4-6-0 and 4-6-2 type locomotives different railwavsystems. Following are some details on the practice of eachrailway system: Table Dimensions of Recent 4-6 0 Type Locomotives, with Superheaters East. P. L. M. 4-cyI. 4-cyl. compounds compounds Grate area, sq. ft JHeating surface sq. ft. 1, Superheatg surf., sq. ft. Tubes, number and (21— outside dimen- \ 28— sions, in 75 ,——(.4 State 4-cyl. simple 1, 22— 139— Nord. Midi. 4-cyl. 2-cyl. compounds sun ill ,——— [, 24 — Midi Railway Two-Cylinder Simple Locomotive, Equipped with Superheater. compounds; the reversing gear can operate at will the high-pressure and the low-pressure motions together, or only oneof them. The starting device, when admitting steam directlyto the low-pressure- cylinders, opens a direct exhaust to thehigh-pressure. An exception is to be found on the Paris-Lyons-Mediterranean engines: the low-pressure valve mo-tion gives always the same admission backwards and for-wards; it is operated by the same screw as the high-pressuremotion, but is only transferred from one position to theother when reversing. The high-pressure valve motion beingdesigned to give a very prolonged admission, the startingdevice comprises only a cock admitting live steam into thelow-pressure cylinders, without special exhaust for the high-pressure. As regards details it may be mentioned that, in some en-gines, the damper-box and doors, that enclose in the smoke- •Frorn a pape
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
