. Electric railway journal . is presented herewith. These specificationswere signed as follows: Board of Supervising EngineersChicago Traction, Board No. 1 ; Bion J. Arnold, chairmanand chief engineer; George Weston, representing the Cityof Chicago; Harvey B. Fleming, representing the ChicagoCity Railway Company. IV. —Bore of wheels to be cither 5J4 hi., 434 in., roughbore, or as ordered. V. —The steel for wheels shall be made by the open-hearth process. VI. —The steel for wheels shall conform to the followinglimits in chemical composition: Carbon to per cent Manganese to p
. Electric railway journal . is presented herewith. These specificationswere signed as follows: Board of Supervising EngineersChicago Traction, Board No. 1 ; Bion J. Arnold, chairmanand chief engineer; George Weston, representing the Cityof Chicago; Harvey B. Fleming, representing the ChicagoCity Railway Company. IV. —Bore of wheels to be cither 5J4 hi., 434 in., roughbore, or as ordered. V. —The steel for wheels shall be made by the open-hearth process. VI. —The steel for wheels shall conform to the followinglimits in chemical composition: Carbon to per cent Manganese to per cent Silicon to per cent Phosphorus not to exceed per cent Sulphur not to exceed per cent VII. —The manufacturer shall furnish the inspector thecomplete analysis of every heat from which the wheels aremade. These analyses shall be made on drillings takenfrom the small test ingots and shall conform to the limitsprescribed in paragraph VI. VIII. —The slabs from which the wheels are made shall. Cross-Section of New Solid Steel Wheel Adopted by the Chicago City Railway Company, Showing Detail Dimensions of Wheel and Standard Rail The first wear, it is expected, will reduce the diameterby in. and it will require turning off 34 hi. to renewthe flange and tread contour. The second wear and turn-ing are expected to be the same in depth as the first, andthen the final wear, it is thought, will reduce the rim to athickness of in. to ^4 in. The engineers hold the opin-ion that each of these three periods of wear will give amileage equal to that now obtained with a chilled-ironwheel or, in other words, that the steel wheel will outlastthree chilled-iron wheels. As an additional economy it is planned to use the steelwheels which have been worn to the above limit underdouble-truck cars for replacing the present wheels usedunder the single-truck cars which operate on some of thecrosstown lines in the southern part of the city. The axleson the single-truck ca
Size: 2792px × 895px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
