. The history of steel railway rails . he American Society of Civil Engineers has decided upon standard rail seotions for the various weights of rails, and the railroads are gradually adopting them. There are a few other types such as the Dudley and Sayre sections, but they are closely related to those of the American Societys standards. (See Fig. 8). * WEIGHT The weight is another important matter in the constructionof rails from a financial standpoint. The weight of primarywooden stringers, used as rails, was 13 pounds per yard. Onaccount of the introduction of locomotives, and the increase
. The history of steel railway rails . he American Society of Civil Engineers has decided upon standard rail seotions for the various weights of rails, and the railroads are gradually adopting them. There are a few other types such as the Dudley and Sayre sections, but they are closely related to those of the American Societys standards. (See Fig. 8). * WEIGHT The weight is another important matter in the constructionof rails from a financial standpoint. The weight of primarywooden stringers, used as rails, was 13 pounds per yard. Onaccount of the introduction of locomotives, and the increase inweight of trains, the heavy iron rail was introduced, the firstof which weighed from 40 to 50 pounds per yard. Some years ago,Mr. Sandberg began a crusade against the policy of using verylight sections of steel rails. He maintained that the constantlyincreasing weight of rolling stock and the high speed of trainsdemanded a stronger track system. This, however, is not to beobtained by merely increasing the number of ties, as has been. too I b D/STRIBVTfON flfiTALSase 57 y» 90 lb.
Size: 1256px × 1989px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectra, booksubjecttheses
