. Report of draft gear tests, United State Railroad administration, Inspection and test section; . £ Test Gear No. /S /n Cor Gear No. /4 /n Car 3fmpact Ve/oc/ty=430 MPti. T/me —SeconalsFigs. 76k and 76m—Time-Force Curves, Sessions Jumbo Gears Draft Gear Tests of the U. S. Railroad Administration 185 SoM Buffer in CarA Test Gear No. 14 in Car3. impact .45 0246 4 lest Gear A/a Car A lest Gear A/a/4 in CarB /mpact Ve/ocitv= 2/ figure 86p .05 .//o3 Stc- Gean Re lease. .30 .35 40 .45 c lest Gear MxiS/n Car A lest Gear in CarB impact Ve/ocitv^AZOMPH
. Report of draft gear tests, United State Railroad administration, Inspection and test section; . £ Test Gear No. /S /n Cor Gear No. /4 /n Car 3fmpact Ve/oc/ty=430 MPti. T/me —SeconalsFigs. 76k and 76m—Time-Force Curves, Sessions Jumbo Gears Draft Gear Tests of the U. S. Railroad Administration 185 SoM Buffer in CarA Test Gear No. 14 in Car3. impact .45 0246 4 lest Gear A/a Car A lest Gear A/a/4 in CarB /mpact Ve/ocitv= 2/ figure 86p .05 .//o3 Stc- Gean Re lease. .30 .35 40 .45 c lest Gear MxiS/n Car A lest Gear in CarB impact Ve/ocitv^AZOMPH. °y , Jrt ^h / jU ZL >f -*r \- M 4 ^^S^ r A N xS. figure76a .05 ./OmQ/-*f ^ec Gear Compress/on. 9 JS .20 .25 .30 .3_ /•» ■*->£■ Sec. Gear Re/ease 5 .40 .45 • 0347 Sec~ Draft~ Gear Cyc/e. 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. 76n, 76p and 76q—Time-Closure Curves, Sessions Jumbo G
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1920, bookyear1921
