. The Street railway journal . Section street SECTION THROUGH BOLSTER AND SPRING PLANK and enlarged sections at either end, to fit closely within theguiding faces of the transoms and thus prevent canting andracking the bolster. It is of I section, with box-girder con-struction at center and ends, 685/2 ins. long, with top and bot-. SIDE ELEVATION AND HALF PLAN OF TRUCK lower ends of the swing links have projecting lugs, and bolts are used to hold them upon the pivot pins on thespring-plank end casting, as keying or other means of lock-ing was prevented by the brake-ha
. The Street railway journal . Section street SECTION THROUGH BOLSTER AND SPRING PLANK and enlarged sections at either end, to fit closely within theguiding faces of the transoms and thus prevent canting andracking the bolster. It is of I section, with box-girder con-struction at center and ends, 685/2 ins. long, with top and bot-. SIDE ELEVATION AND HALF PLAN OF TRUCK lower ends of the swing links have projecting lugs, and bolts are used to hold them upon the pivot pins on thespring-plank end casting, as keying or other means of lock-ing was prevented by the brake-hanger rigging. The bolstersprings at either end are double elliptics, 5 ins. wide by 34ins. long; each is a 9-leaf spring, and is located by means of tom % in. in thickness, and with a 5^-in. vertical web extend-ing longitudinally through the center from end to end. Thebolster is 113^2 ins. in height at the middle, narrowing to height toward the ends, although at the extreme endit is raised 3 ins. to accommodate the side bearing casting,which is bolted to the upper face; it is 12 ins. in width at the 682 STREET RAILWAY JOURNAL. [Vol. XXVIL No. 17. middle and across the side bearing faces between the tran-soms. The side bearings to be used are of the Norwood ball-bearing type, the contact surfaces of which are 3^ ins. abovethe c
Size: 1939px × 1289px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
