. The Street railway journal . rtions have been inservice for only a year or two, but with the requirementsfor new paving new rails are included, and the whole sys-tem is being rebuilt. In the process of construction the pavement is re-moved, and the surface excavated to a depth of twentyinches. The foundation is then rolled with a steam rollerhaving a weight of 250 lbs. per lineal inch of surface meas- ure. The oak ties, 6x7 ins., X 8 ft., with joint ties 6x12,are then placed with two foot six inch centers. The railsare then spiked direct to the ties and the tracks surfacedup and supported on
. The Street railway journal . rtions have been inservice for only a year or two, but with the requirementsfor new paving new rails are included, and the whole sys-tem is being rebuilt. In the process of construction the pavement is re-moved, and the surface excavated to a depth of twentyinches. The foundation is then rolled with a steam rollerhaving a weight of 250 lbs. per lineal inch of surface meas- ure. The oak ties, 6x7 ins., X 8 ft., with joint ties 6x12,are then placed with two foot six inch centers. The railsare then spiked direct to the ties and the tracks surfacedup and supported on wooden blocks. A foundation ofconcrete six inches in depth is then placed under the ties,and the space between the ties filled with concrete andtamped. In case asphalt or brick is employed, the con-crete is also placed above the ties, so that they are entirelyenclosed in a pocket of concrete. Where granite pavingis to be employed the concrete is brought to a level withthe ties, above which is two inches of sand to receive the. FIG. 6.—OPEN CAR—CINCINNATI STREET RAILWAY. blocks. On all paved streets the full grooved girder rail,weighing ninety-five pounds per yard, is employed whichwith granite paving is required to be eight inches indepth. With asphalt and brick the same pattern of railis employed, but the depth is only six inches and the weighteighty-six pounds per yard. The rails were manufacturedby the Johnson Company and are known respectively asNos. 216 and 200. The special work employed is of theJohnson Company and Weir Frog Companys joints are supported on the twelve inch ties, and areunited by means of heavy (twelve inch bolt) base of the eight inch rail is five and a half incheswide, but that of the six inch rail is six inches. In the process of construction the concrete is mixedon platforms resting upon the rails, and so provided withguides that they can be slid along on the track as theconstruction proceeds. The proportions of the
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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
