. Report of draft gear tests, United State Railroad administration, Inspection and test section; . Sec Draft Gear Cyc/er. 0347 Sec. Draft Gear Cyc/e~T/me—Seconds Dotted lines represent instantaneous car velocities asdetermined from the original car-movement curves. The irregularities are due in general to vibrations ofthe car structure induced by draft gear lines represent the mean velocity curves. Figs. 80d, 80e and 80f—Velocity Curves, Westinghouse D-3 Gears Draft Gear Tests of the U. S. Railroad Administration 211 So lid Buffer in Car Gear No. 2 in Car Ve/o

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. Report of draft gear tests, United State Railroad administration, Inspection and test section; . Sec Draft Gear Cyc/er. 0347 Sec. Draft Gear Cyc/e~T/me—Seconds Dotted lines represent instantaneous car velocities asdetermined from the original car-movement curves. The irregularities are due in general to vibrations ofthe car structure induced by draft gear lines represent the mean velocity curves. Figs. 80d, 80e and 80f—Velocity Curves, Westinghouse D-3 Gears Draft Gear Tests of the U. S. Railroad Administration 211 So lid Buffer in Car Gear No. 2 in Car Ve/ Sg5308 Ft Lbs >H< -8427 Ft Lbs. each car * Ft Lbs. -Cor B r/6J00 Ft. ^Lbs. ? Work Absorbed Ft LbiWork Done \ figure80& .05Sec. Gear Compression .10 *5 .20 Sec. Gear defease .2 5 .30 35 4 7 45 ec Draft Gecu . Test Gear No. 3 in Car ATest Gear No. 2 in Car Velocity = ■ Ft Lbs. CarA- 735B Ft Lbs, each car ■Car B Ft. ^ 3440 Ft Done Ft. Absorbed102 Ft L t5 .05 iO JS 0/73 Sec. Geor Compress/on Sec. Gear Release S

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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1920, bookyear1921