. Railway mechanical engineer . LOAD-THDUSANn PDUNI13 Fig. 7 with the usual practice at the shop in (juestion se\eral nun, Uiin this instance, got upon the platform and jumped the car up Fig. 9 to determine which cur\o nearer tlie actual height of springsin service, a coach was selected at random; the load on the foursprings accurately determined by w-eighing the coach and de-ducting the weights unsupported by the springs, and the heightnf each spring calipered. The springs were then removed andtested, the lower part of the curves being reproduced in Fig. The heights of the springs as
. Railway mechanical engineer . LOAD-THDUSANn PDUNI13 Fig. 7 with the usual practice at the shop in (juestion se\eral nun, Uiin this instance, got upon the platform and jumped the car up Fig. 9 to determine which cur\o nearer tlie actual height of springsin service, a coach was selected at random; the load on the foursprings accurately determined by w-eighing the coach and de-ducting the weights unsupported by the springs, and the heightnf each spring calipered. The springs were then removed andtested, the lower part of the curves being reproduced in Fig. The heights of the springs as calipered under the car are shownliy the double circles, which are plotted for loads of 14,875 lb.,the average load for the four springs. For curve 1 this pointfalls practically on the release load line. For curves 2, 5 and 6 May, 1915 l^\ll.\v.\^• :n\:. mk( iiaxicai. 221 the i)uints fall bc-twccii the two lines; the first two inciitiniieclhcingslightly nearer the applicl Ilad line, while the latter is nearerthe release load line. In a similar test (jn from ,i eafecar, the calipered loaded heights of the springs removed fromthe range side of the kitchen end of the car are on the releaseload line, while those for the springs from the passageway sideof the same end of the car practically coincide with the aijpliedload curve. That is, the springs from the range side ride Icjwerthan those from the other side, which fact may explain why carforemen often make it a practice to place heavier springs, orsprings of jjreater height,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
