Identifier: streetrailwayjo231904newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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engage the.fish-plates or other special pieces bolted to the track, as inFig. 9. To prevent creeping of ties in the ballast groups of tiesare connected by stringers. Deflection of curves from expan-sion and contraction is prevented by the diagonal bracing be-tween the rails. The writer found the gravel ballast exception-ally clean, free from dust, iron rust and oil. On Biilow Strassethe Berlin elevated structure is seen at its best, Figs. 14 and 16.Passing trains are hardly noticeable, either underneath or inthe houses. The engineers decided, as the result of much ex-perience with bridges, that the structure would vibrate less ifthe lower chords of the trusses were carried down to theground, avoiding the weak spot at the junction of posts andtrusses found in ordinary elevated construction. The use ofthe arch shape made it unnecessary to anchor the posts withexpensive foundations, the structure on Biilow Strasse consist-ing of a kind of succession of tables, with the four legs inclined
Text Appearing After Image:
FIG. 7.—STEEL AND SAND TIES, EASTERN SECTION

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