. Railway mechanical engineer . 4 miles long. The d\Tiamometer recordwas started at a point eight miles from Hohokus, where thespeed was 25 , and about two-thirds the way up thespeed had dropped to 13 At this point the booster wascut in. As shown in Fig. 4 the drawbar pull immediately increased from o4,228 lb. to 38,79o lb., an increase of4,565 lb. At West Nyack a test was made to determine the combinedpower of the locomotive and the booster. The grade at thispoint is per cent. The train was brought to a stand-still and a start made l)y taking slack. As shown by thedynamomete
. Railway mechanical engineer . 4 miles long. The d\Tiamometer recordwas started at a point eight miles from Hohokus, where thespeed was 25 , and about two-thirds the way up thespeed had dropped to 13 At this point the booster wascut in. As shown in Fig. 4 the drawbar pull immediately increased from o4,228 lb. to 38,79o lb., an increase of4,565 lb. At West Nyack a test was made to determine the combinedpower of the locomotive and the booster. The grade at thispoint is per cent. The train was brought to a stand-still and a start made l)y taking slack. As shown by thedynamometer car record (Fig. 5) the train pnxeeded .235of a mile, where it stalled, and the maximum drawbar pullat zero speed registered 51,138 lb. The boiler pressure re-. Orade Dafum Fig 6—Stalling Test to Determine Maximum Drawbar Pull Withoutthe Booster mained constant; the throttle was wide open and the reverselever in the comer. To determine the maximum drawbar pull of the locomo-tive without the booster a test was made on an per centgrade into Congers, the tonnage at this point being 1,958 tons,one car having been set off on account of hot boxes, \^ith thebooster working, the train was brought entirely on the grade,the booster then cut out, and the engine proceeding until
Size: 1530px × 1633px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering