. Report of draft gear tests, United State Railroad administration, Inspection and test section; . lesr Gear Car Alesi- Gear /n Car B 17me — Seconds Figs. 77b and 77c—Car-Movement Curves, Superimposed. National M-4 GearsThese Curves Drawn by Cars in Test Draft Gear Tests of the U. S. Railroad Administration 189 5o//d Buffer //? Cor Gear No. 35 /r? Cor \/e/oc/ty=3S8 Mm. as. JO ./£ .20 — -4— Sec. Gear Re/ease Sec. Sear Conipress. ■ Sec Draff Gear Cyc/e 25 45

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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1920, bookyear1921