. The Street railway journal . FIG. 1—SECTION OF WORKING CONDUCTOR with Portland cement, and are supported along the stonewalls of the approaches by iron brackets and braces. Onthe iron-work they are set in pockets on column basestones. The poles were furnished by the National Tube. at*st FIG. 4.—CONNECTOR Works. No. o Phono electric wire is used for thespan wire, and on curves. This wire has a tensile strengthof 80,000 lbs. per sq. in., and is made by the BridgeportBrass Company. The entire trolley construction wasdesigned by S. H. Harrington. The line was built bySmethurst & Allen. The presi
. The Street railway journal . FIG. 1—SECTION OF WORKING CONDUCTOR with Portland cement, and are supported along the stonewalls of the approaches by iron brackets and braces. Onthe iron-work they are set in pockets on column basestones. The poles were furnished by the National Tube. at*st FIG. 4.—CONNECTOR Works. No. o Phono electric wire is used for thespan wire, and on curves. This wire has a tensile strengthof 80,000 lbs. per sq. in., and is made by the BridgeportBrass Company. The entire trolley construction wasdesigned by S. H. Harrington. The line was built bySmethurst & Allen. The president of the Union RailwayCompany gave orders that nothing but the very best ofmaterials and workmanship, regardless of cost, were tobe employed in the trolley construction on the bridge. STREET RAILWAY JOURNAL. [Vol. XIV. No. 4. LETTERS AND HINTS FROMPRACTICAL MEN Pressing Wheels on Axles Brooklyn, N. Y., Feb. 12, Street Railway Journal: Recently there was occasion to investigate the problemof the proper proportioning of the diameter of certain steelcar-wheel hubs and axles to secure the maximum possiblegrip between the two, and yet have the compression of axleand the extension of bore within the elastic limits of thematerials in the axle and wheel. The fo
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
