Identifier: streetrailwayrev06amer (find matches)
Title: The street railway review
Year: 1891 (1890s)
Authors: American Street Railway Association Street Railway Accountants' Association of America American Railway, Mechanical, and Electrical Association
Subjects: Street-railroads
Publisher: Chicago : Street Railway Review Pub. Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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that confront the engineer whoattempts to solve a problem of elevated special trackconstruction. In these days when elevated roads arecompelled to reach the heart of a city, by the mostcircuitous routes, and terminal facilities have to be pro-vided for trains coming in on short headvvay over fourtracks, more than ordinary skill in construction and manu-facture of special parts is necessary. To this branch of was a very dillicult one. The laj-out consists of twoslip switches of different radii, one curved crossing andfive turn-outs (one on a reverse curve). In addition tothis, provision had to be made for the trolley or feedrail, which had to be movable in some places, to be outof the way when not in use. All of the switches, con-tact rails, signals and interlocking appliances, are movedfrom tower partly shown at the extreme left of thepicture. Eighty pound T rail was used throughout theconstruction, which was as near the railroad standardsas the short radii of the curves would allow.
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SPECIAL WOKK AT METROPOLITAN ELEVATED TERMINAL, CHICAGO. railway construction the Paige Iron Works of Chicago,have been devoting their energies and one of the recentsuccessful achievements in this line we have chosen forillustration. The cut represent an intricate piece of special work,located on the Metropolitan West Side Elevated Rail-road, Chicago, between the Franklin street terminal sta-tion and the four track bridge over the river. While itis not the largest, it is the most complicated lay-out onthe structure. The problem was to arrange it so. thattrains could pass from ;my one of the four tracks on thebridge, to either of the two station tracks and returnfrom either of the two station tracks to any of the fourbridge tracks without backing up and to provide trackfor relay motor. As the distance from station to thebridge was limited and the center of the north stationtrack was about in line with the center of south bridgetrack, but not parallel with it. the engineering problem Th

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