. The Street railway journal . t dueto gravity and acceleration were taken from the respective plot-tings for the particular section, and in this manner the total tractiveeffort per ton on the level at a constant speed was obtained; de-ducting from this the tractive resistance per ton already found atthat particular speed, the result gave the additional resistance dueto the curve. Although there are several sharp curves their lengthis small and it was difficult to get accurate results, as in some casesthe length of curve was not greater than that of the locomotive andtrain. The most consistent
. The Street railway journal . t dueto gravity and acceleration were taken from the respective plot-tings for the particular section, and in this manner the total tractiveeffort per ton on the level at a constant speed was obtained; de-ducting from this the tractive resistance per ton already found atthat particular speed, the result gave the additional resistance dueto the curve. Although there are several sharp curves their lengthis small and it was difficult to get accurate results, as in some casesthe length of curve was not greater than that of the locomotive andtrain. The most consistent results were obtained on the curvesbetween the Borough and Elephant stations, and between the Ele-phant and Kennington stations. The first curve has a radius of390 ft., and the average of three sets of observations gave ton at miles per hour, the tractive force per ton on thestraight and level road being , leaving lbs. per ton dueto the curve alone. The next curve has 540 feet radius, and the . 45. FIG. 9.—CURVE SHOWING TRACTIVE RESISTANCE PERTON AT VARIOUS SPEEDS 30 JfiX>
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
