. Report of draft gear tests, United State Railroad administration, Inspection and test section; . 45~ Test- Gear Ah. 53 in Car/* les-f Gear A/o. 52in CarB Impact Ve/ocrty = % OS~ JO ^6 ~^5 ~W ~35 -&F .45. s4G 77me—Seconds Curve D, determined from superimposed car-movement Curve B, traced on small drum, represents movement of curves, represents combined draft gear movement and yield gear in Car B. of car bodies. Curve A, derived from curves C and B, represents simul- Curve C, obtained by eliminating car body yield from taneous movement of gear in Car D, represents true combin
. Report of draft gear tests, United State Railroad administration, Inspection and test section; . 45~ Test- Gear Ah. 53 in Car/* les-f Gear A/o. 52in CarB Impact Ve/ocrty = % OS~ JO ^6 ~^5 ~W ~35 -&F .45. s4G 77me—Seconds Curve D, determined from superimposed car-movement Curve B, traced on small drum, represents movement of curves, represents combined draft gear movement and yield gear in Car B. of car bodies. Curve A, derived from curves C and B, represents simul- Curve C, obtained by eliminating car body yield from taneous movement of gear in Car D, represents true combined movement of both gears. Figs. 83n and 83q—Time-Closure Curves, Christy Gears Draft Gear Tests of the U. S. Railroad Administration 235 * 400 i Sol/of Buffer /n Cor A. 400 Test Gear No. lSZ //? Cor B. Impact Ve/oc/ty= 300 * * AHJ / (00 figure SSr 0 / 2 >3 Sear C/osc/ne — /nches 600\ 300 -ZQ7- 7&st Gear No. £3 in Car A. lest Gear No. 52 /n Car 3 impact Ve/od/ty=373
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1920, bookyear1921
