. Report of draft gear tests, United State Railroad administration, Inspection and test section; . .4S lest Gear /n Car A Test Gear CarB tmpocf Ve/oc/tv=/.01 ^^~ rTffureS4p .OS ./o /s 20 -_o tr>j> Sec. Gear- &e/eose. -S\ 5 .30 .35 .40 -as ? Compress/on- 0. 2,-, S* c. Drcrry- ( ?st//~ Cyc/e. „. Tes-f Gear Car A Tesf- Gear tn CarB /rnpaci- Ve/ocfj-y~= 0-425 TTme — Seconds Curvf I), determined from superimposed car-movementcurves, represents combined draft gear movement and yieldof car bqdies. Curve C, obtained by eliminating car body yield fromcu
. Report of draft gear tests, United State Railroad administration, Inspection and test section; . .4S lest Gear /n Car A Test Gear CarB tmpocf Ve/oc/tv=/.01 ^^~ rTffureS4p .OS ./o /s 20 -_o tr>j> Sec. Gear- &e/eose. -S\ 5 .30 .35 .40 -as ? Compress/on- 0. 2,-, S* c. Drcrry- ( ?st//~ Cyc/e. „. Tes-f Gear Car A Tesf- Gear tn CarB /rnpaci- Ve/ocfj-y~= 0-425 TTme — Seconds Curvf I), determined from superimposed car-movementcurves, represents combined draft gear movement and yieldof car bqdies. 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. Fics. 84n, 84p and 84q—Time-Closure Curves, Miner A-2-S Gears 242 Draft Gear Tests of the U. S. Railroad Administration i I l 400300200 /OO 600 500400300 20fr /OO So//of Buffer /n Car A. -2,50- Test Gear No. 26 /n CarB. impact, Ye/oc/ty=247 MPtf. T/35,000* / 2 Gear C/asure —/nc/?e$ Figure 84r ■-„ -2S9 —t <~*r i i Test Gear No. $7 In Cor A. 1 Test Gear No. 26 //? Car B. ^ K fmpact Vebc/ty=32 \ to 1 : i JCVJ **-—^; LGeor C/osedW
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1920, bookyear1921
