. Report of draft gear tests, United State Railroad administration, Inspection and test section; . 45 ITme — Seconds Curve D, determined from superimposed car-movementcurves, represents combined draft gear movement and yieldof car bodies. Curve C, obtained by eliminating car body yield fromcurve D, represents true combined movement of both gears. Curve B, traced on small drum, represents movement of gear in Car B. Curve A, derived from curves C and B, represents simul-taneous movement of gear in Car A. Figs. 87n, 87p and 87q—Time-Closure Curves, Harvey Springs 260 Draft Gear Tests of the U. S.

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. Report of draft gear tests, United State Railroad administration, Inspection and test section; . 45 ITme — Seconds Curve D, determined from superimposed car-movementcurves, represents combined draft gear movement and yieldof car bodies. Curve C, obtained by eliminating car body yield fromcurve D, represents true combined movement of both gears. Curve B, traced on small drum, represents movement of gear in Car B. Curve A, derived from curves C and B, represents simul-taneous movement of gear in Car A. Figs. 87n, 87p and 87q—Time-Closure Curves, Harvey Springs 260 Draft Gear Tests of the U. S. Railroad Administration 400 300 So/taf Test Gear No. 55 /r? Car 3. 200 too ^uffer //? Car A /mpact ]/e/oc/ry=/.37MrVf. 243,000*. / 2 Gear C/osure—//?c/?e$ 600 500 400 300 200 /00 -/.76± 7esf (jear A/b. 56 //? Car A\. Test Gear No. 55 A cj?r]s. /mpact l/e/oc/ty=233 M$ff. 245,000*Gear C/osedCar B- Test Gedr~ B- Si?

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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1920, bookyear1921