. Report of draft gear tests, United State Railroad administration, Inspection and test section; . Solidduffer in Car Gear No. 32 in Car Velocity= 45 Sec. Draff Gear Cyc/e O fy)0t lest Gear No. 33 in Cor Gear No. 32 in Car Velocity= I 05 JO J5 .20 0/74 Sec. Gear Re/ease - 30 35 ■40 Sec Gear Compress. Sec. Draff Gear Cyc/e- 600- ■45. 50O 400 300 200 /00 Test Gear No. 33, in Cor Gear No. 32 in Car 3. •Impact Velocity=426 6d£tL Time -SeconalsFigs. 75k and 75m—Time-Force Curves, National M-l Gears 178 Draft Gear Tests of


. Report of draft gear tests, United State Railroad administration, Inspection and test section; . Solidduffer in Car Gear No. 32 in Car Velocity= 45 Sec. Draff Gear Cyc/e O fy)0t lest Gear No. 33 in Cor Gear No. 32 in Car Velocity= I 05 JO J5 .20 0/74 Sec. Gear Re/ease - 30 35 ■40 Sec Gear Compress. Sec. Draff Gear Cyc/e- 600- ■45. 50O 400 300 200 /00 Test Gear No. 33, in Cor Gear No. 32 in Car 3. •Impact Velocity=426 6d£tL Time -SeconalsFigs. 75k and 75m—Time-Force Curves, National M-l Gears 178 Draft Gear Tests of the U. S. Railroad Administration s So//d Buffer ai Car A 7esf Gear No. 32//? CcrrB /mpacr Ve/oc/i-v= RH. 4 D 0 c^£ T* 22Sb^^ / figure7Sn .05 jo /5 .20 2, - . Gee. Gear- Re/ease. 5 30 35 40 <5 xA-Kl Compression — 025 j Sec Ora-ff Gear Cyc/e. , Test- Sear No. 33 fn Car A Jes-f Gear No. 32/n CarB /mpacf Ve/oc/ty=*/.06 .05 /S 20 25 30 35 4V 45


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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1920, bookyear1921