. American engineer and railroad journal . gondola, the next step was the Fl design, an 80,000 lb. flatcar which was considered as experimental and from whichvaluable information with respect to the action of pressedsteel sills under heavy loads was obtained. It did not becomea standard, but was afterward redesigned and adopted underanother class which will be referred to later. At this time. November, 1901, attention was directed towardthe box car with steel underframing. After a careful studyof the question of capacity and the decision to build largecapacity box cars was reached the American
. American engineer and railroad journal . gondola, the next step was the Fl design, an 80,000 lb. flatcar which was considered as experimental and from whichvaluable information with respect to the action of pressedsteel sills under heavy loads was obtained. It did not becomea standard, but was afterward redesigned and adopted underanother class which will be referred to later. At this time. November, 1901, attention was directed towardthe box car with steel underframing. After a careful studyof the question of capacity and the decision to build largecapacity box cars was reached the American Railway Associa-tion adopted its standard interior dimensions for 40-ton fact that this road could handle 110,000 lbs. of grain inbox cars settled the question in favor of cars of 100,000 capacity and the standard dimensions of 36 ft. inlength. S ft. clear height and 8 ft. 6 in. width were adopted,thp standard door opening of 0 ft. being also used. Since theunderframe was to be of steel the additional cost of making v. With the bad waters in the Southwest and under the neces-sity of providing engines enough for the trains, an effort is be-ing made to extend the life of firebox sheets by removing inevery possible way all unnecessary thicknesses of metal be-tween the fire and the water. In this connection crown boltswith large heads are giving place to crown stays resemblingstay bolts, having taper threads in the crown sheet and rivetedover like stay bolts. On a number of roads opinion favors widermud rings with 5-in. water spaces at the bottom of the waterleg. There is also a tendency toward widening the spaces be-tween tubes, making 1-in. bridges instead of the narrowerspaces now prevalent. Several roads are now experimenting inthis direction. They are prepared to sacrifice some tube heat-ing surface for the sake of securing more water space aroundeach tube, in the hope of reducing the amount of tube leakage- DETAILS OF ATTACHMENT OF DRAFT XL BOX
Size: 2004px × 1247px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
