. Report of draft gear tests, United State Railroad administration, Inspection and test section; . lest Gear No. 3 /n Cor Gear No. 2 In Car /e/ Sec. Draft Gear Cye/e T7me—SecondsFigs. 80k, 80l and 80m—Time-Force Curves, Westinghouse D-3 Gears Draft Gear Tests of the U. S. Railroad Administration 213 4 5p//cf Suffer //? Geor, //? Cor Ve/oci1y= MPti 3 C~>0~ w 2/ FigureSOr? t secGtpJ. impress. /O /5 20 25 30 35 40 45- 0/66 Sec. Gear &e/ease A Sec. Draft Gear Cyc/e-. Sec Draft Gear Cyc/e- 7/me—Seconds Curve D, determin

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. Report of draft gear tests, United State Railroad administration, Inspection and test section; . lest Gear No. 3 /n Cor Gear No. 2 In Car /e/ Sec. Draft Gear Cye/e T7me—SecondsFigs. 80k, 80l and 80m—Time-Force Curves, Westinghouse D-3 Gears Draft Gear Tests of the U. S. Railroad Administration 213 4 5p//cf Suffer //? Geor, //? Cor Ve/oci1y= MPti 3 C~>0~ w 2/ FigureSOr? t secGtpJ. impress. /O /5 20 25 30 35 40 45- 0/66 Sec. Gear &e/ease A Sec. Draft Gear Cyc/e-. Sec Draft Gear Cyc/e- 7/me—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. represents movement of Curve B, traced on small drugear in Car B. Curve A, derived from curves C and B, represents simultaneous movement of gear in Car A. Fics. 80n, 80p and 80q—Time-Closure Curves, Westinghouse D-3 Gears 214 Draft Gear Tests of the U. S. Railroad Administration 40C So/id Buffer in Car/4Test Gear Na2 in CarBImpact l/e/ocifv=ze6MP* { o^n 46 too % -17Q000* Gear A/a 2Car- B t^/oo * figure <k 60r ° 6 / Jt » j Gear Closure —Inches. %soo\ 400 lest Gear A/a 3 in Car A Test Gear CarB impact Velocity == zszr\

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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1920, bookyear1921