. Report of draft gear tests, United State Railroad administration, Inspection and test section; . as. JO ./£ .20 — -4— Sec. Gear Re/ease Sec. Sear Conipress. ■ Sec Draff Gear Cyc/e 25 45. Sec Draft Gear Cyc/e 7/me —Seconds Dotted lines represent instantaneous car velocities as de-termined from the original car-movement curves. The irregularities are due in general to vibrations of thecar structure induced by draft-gear action. Full lines represent the mean velocity curves. Figs. 77d, 77e and 77f—Velocity Curves, National M-4 Gears 190 Draft Gear Tests of the U. S. Railr
. Report of draft gear tests, United State Railroad administration, Inspection and test section; . as. JO ./£ .20 — -4— Sec. Gear Re/ease Sec. Sear Conipress. ■ Sec Draff Gear Cyc/e 25 45. Sec Draft Gear Cyc/e 7/me —Seconds Dotted lines represent instantaneous car velocities as de-termined from the original car-movement curves. The irregularities are due in general to vibrations of thecar structure induced by draft-gear action. Full lines represent the mean velocity curves. Figs. 77d, 77e and 77f—Velocity Curves, National M-4 Gears 190 Draft Gear Tests of the U. S. Railroad Administration
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1920, bookyear1921
