. Locomotive engineering : a practical journal of railway motive power and rolling stock . Locomotira Engineering Fig. J7. M l^comotUt Engintrrtng Vx. IS weight is put on the jack, it will rightitself and throw the boiler over. We will next plumb the back end. Putlines over the wagon top at / and m. , letting them extend below the mud-ring. When the boiler is vertical the dis-tance from the lines to the boiler will bethe same at all four corners. If the boileris not plumb, the distance between linesand boiler will be greatest on the low side. On account of the sides of water leg reliable
. Locomotive engineering : a practical journal of railway motive power and rolling stock . Locomotira Engineering Fig. J7. M l^comotUt Engintrrtng Vx. IS weight is put on the jack, it will rightitself and throw the boiler over. We will next plumb the back end. Putlines over the wagon top at / and m. , letting them extend below the mud-ring. When the boiler is vertical the dis-tance from the lines to the boiler will bethe same at all four corners. If the boileris not plumb, the distance between linesand boiler will be greatest on the low side. On account of the sides of water leg reliable. .\ better way is to caliper theboiler at a and at b. Fig. 17. Suppose theboiler is 50 inches in diameter at a and 49inches at 4, then the distance from centerto circumference is /i inch more at a thanat b. Now, if one end of a long straight-edge be put on the parallel piece d. andthe other end on c, which is !i inchthicker than d, the straight-edge will beparallel with center of boiler. Put thelevel on top of the straight-edge when 810 LOCOMOTIVE ENGINEERING. June, 1898. leveling the boiler. Set the boiler leveland
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