. Electric railway journal . agon. The subgfade was rolled witha five-ton roller in accordance with the specifications ofthe city engineer. This was most useful in compactingthe back fill over trenches dug by others to repairsewer, water and gas connections prior to constructionof the new pavement. The ballast over these openingsand over soft spots in the subgrade was reinforcedby laying three parallel lengths of 60-lb. T-rail underthe steel ties. A shortage of track bolts due to non-delivery madenecessary the use of but two bolts in the joint platesin portions of the new track over which cars
. Electric railway journal . agon. The subgfade was rolled witha five-ton roller in accordance with the specifications ofthe city engineer. This was most useful in compactingthe back fill over trenches dug by others to repairsewer, water and gas connections prior to constructionof the new pavement. The ballast over these openingsand over soft spots in the subgrade was reinforcedby laying three parallel lengths of 60-lb. T-rail underthe steel ties. A shortage of track bolts due to non-delivery madenecessary the use of but two bolts in the joint platesin portions of the new track over which cars wereoperated prior to concreting. This was responsible forthe cold rolling of the head of the rail at the joint andmade necessary the filing away of the lip so track laying proceeded rapidly as the accuratepunching for the clips in the steel ties made gagingunnecessary. Preceding the pouring of the concreteballast and pavement by twenty hours a section oftrack was blocked to surface, lined and the joint plates. welded. The blocks were of white oak with the barkremoved, 6 in. long and 5 in. in minimum of these were placed under alternate steel to the blocking of the track the joint plates wereloosened and the rail bucked back so that a close jointmight be obtained. Plates Welded at Top and Bottom The joint welding was done with a Lincoln type Wmachine. A seam was welded at the top and bottomof the 30-in. plates. Each steel joint tie was weldedto the rail and the members of the tie were welded sothat a crossbond was provided at each joint. The con-crete ballast and paving were placed by a contractorunder the joint supervision of the city and ballast and paving foundation, 10 in. in thickness,was poured for half of the total trench width, and the6-in. surface poured for the area between the rails ofthe first track. The company furnished two men toassist the contractors force in securing proper tamp-ing of the ballast about the st
Size: 1709px × 1461px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
