. American engineer and railroad journal . machinethrough the arms 0, shown in the inverted plan view, fromthe center of the dynamometer in Fig. 13. Flexible steelbands N rotate the drum when the levers No. 2 are belt drum movement is communicated to the pen leverP by means of the tube H inside of which is the torsion rod torsion rod is rigidly secured at L and it introduces addi-tional spring resistance into the dynamometer. The plate Rat the top of the dynamometer furnishes connection between J Time -1 K / Second Aj-ca by Intvprotor^ f/S< Darum Lino - FIG. 12.—TYPICAL
. American engineer and railroad journal . machinethrough the arms 0, shown in the inverted plan view, fromthe center of the dynamometer in Fig. 13. Flexible steelbands N rotate the drum when the levers No. 2 are belt drum movement is communicated to the pen leverP by means of the tube H inside of which is the torsion rod torsion rod is rigidly secured at L and it introduces addi-tional spring resistance into the dynamometer. The plate Rat the top of the dynamometer furnishes connection between J Time -1 K / Second Aj-ca by Intvprotor^ f/S< Darum Lino - FIG. 12.—TYPICAL DYNAMOMETER RECORD. the levers No. 2, and by means of this system of levers eithera pull or a push upon the drawbar rotates the pen lever Pafter meeting the spring resistance already mentioned. Thesprings V are supplied in various capacities up to 80,000lbs. With the 80,000-lb. springs the dynamometer records 10,-000 lbs. per in., as measured from the datum line. The scaleis 5,000 lbs. per in. with the 40,000-lb. springs and 2,000 FIG. 14.—PEN ABM DASH POT.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
