. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . 1-|<\1 L.\ulM„ ijL iM.;\M,A.\li, .Al M .\. Boiler and Cylinder : In the design of the modern locomotivethe two most important considerations arethe boilers and cylinders—everything ismade subordinate to these. Of the two,the boiler is the most important, becauseon it depends the successful working ofthe engine; if it is unable to supply thenecessary quantity of steam the engineis sure to lose time on a hard the boiler may be able to supplythe st
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . 1-|<\1 L.\ulM„ ijL iM.;\M,A.\li, .Al M .\. Boiler and Cylinder : In the design of the modern locomotivethe two most important considerations arethe boilers and cylinders—everything ismade subordinate to these. Of the two,the boiler is the most important, becauseon it depends the successful working ofthe engine; if it is unable to supply thenecessary quantity of steam the engineis sure to lose time on a hard the boiler may be able to supplythe steam, but it may do this at a sacrificeof economy in the use of fuel and water—probably due to insufficient grate areaand heating surface, which arc the twomost important elements in the boiler,. OLbllMLK IN UUEKNSLAND, AUSTRALI.\. dents on account of imperfect signal be-ing displayed or passing signals on ac-count of imperfect aspect. This subjecthas resulted in a great deal of differenceof opinion; so far as I am concerned I For these reasons, the boiler should bemade as large as the weight of the loco-motive will permit. The size of the locomotive boiler shouldbe proportioned to the amount of ad- c;.pable of pulling a heavier load—that is,exerting a greater tractive power—thanone with little adhesive weight. It isunnecessary to state that the tractivepower is limited, independently of the cyl-inder power, by the weight on the drivingwheels, and friction between the and the rails. In order that thefull tractive power may be utilized, onstarting, the cylinder capacity should beproportioned to the adhesive these conditions the cylinders willnot limit the power at any speed. The cylinders of both freight and pas-senger engines consume large quant
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