. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . If the tumbling shaft is moved up ordown it pulls this rod which in turnmoves tlie bell crank and raises thewhole wrist plate, and the valves move motion. 1 he construction of the valvesrequires an especial cylinder casting andtherefore it cannot be used without acomplete cliangc. The improvements shown by the indi-cator cards art not entirely realized inactual performance records. In a scriesof comparisons made by the indicatorthe water rate per indicator horse powerwas reduced from to
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . If the tumbling shaft is moved up ordown it pulls this rod which in turnmoves tlie bell crank and raises thewhole wrist plate, and the valves move motion. 1 he construction of the valvesrequires an especial cylinder casting andtherefore it cannot be used without acomplete cliangc. The improvements shown by the indi-cator cards art not entirely realized inactual performance records. In a scriesof comparisons made by the indicatorthe water rate per indicator horse powerwas reduced from to The in-dicator cards also show the cause forthe slight wear on the machinery, asthe cards are remarkably full, the ex-pansion lines being clear and distinctat all points of cut-off. Most of thework in passenger service is done at lessthan 6 in. cut-o(T. On account of thehigh and full cards it is evident that thecrank effort is uniform and higher thana slide valved engine. Besides causingless wear on the machinery, this givesa more even torque when starting andthe consequently less FAST -1-4-2 ENGINE ON THE CHICAGOR. (Juayle, Superintendent Motive Power and Machinery. NORTH-WESTERN WITH THE YOUNG ROTARY VALVES. American Locoraotive Company, Builders. 500 pounds, and the weight of engineand tender together is pounds,the tractive effort being about 22,100pounds. The valve motion is indirect, the ec-centric being on the rear driver, a trans-mission bar goes over the forward axleand is attached to the lower end of atwo-arm veritcal rocker in the usualway. The valve stem, though not shownsn in our engraving, has been made ad-justable, and its far end is pinned to athree-arm rocker, one arm being verti-cal and the other two, horizontal. Thesetwo horizontal arms are attached byshort links to the valve cranks and theoscillation of the three-arm rocker givesa rocking motion to the valves. The object of the device was to pro-vide a locomotive with a valve gearwhic
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
