File:The street railway review (1891) (14574802149).jpg

Identifier: streetrailwayrev01amer (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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from a scene duringthe recent laying of the Duplex Track Companyss^-stem on Fourth avenue, at Eighth street, on theNew York & Harlem Railroad Companys line on NewYork City. The photograph waspurposely taken duringconstruction, and before the rails were surfaced or lined,to better show the parts which unite to form essentially abox rail. It will be seen that each of the two completedrails is formed of two parts, each of which is T headed nent and perfect guage. Every practical man will see ata glance the advantages of this construction in securingvertical as well as lateral stiffness and resistence. Creep-ing of either rails is made a most ditFicult and unlikelyoccurance. Track laying is made a comparatively easy matter whilethe paver has vastly less to contend with in this system.The tendency towards lateral displacement on curves isresisted by the pressure of the roadway on the chairs andthe rail web on both sides of the track while the thicknessof the rail heads avoids abrasion.
Text Appearing After Image:
LAYING THE DUFLKX RAILWAY TRACK SYSTEM OX 1 rUK T H YORK CITY. and resting in a slot of a cast iron chair. Also that thepart forming the tread of the final rail overlaps the lowerrail which supports the tread and whose upper flat surfaceconstitutes the wagon track. Also that the combinationrail is made jointless by breaking joints between the upperand lower sections as clearly shown in the engraving.The chairs rest on concrete foundation, which is almostexclusively used in Europe, where many foundations havebeen in constant service upwards of 30 years. The chair,which is a single casting has a slot for the tie-rod, whichis placed at every other chair and which insures a perma- The Duplex Company is to be congratulated onhaving laid their construction on the tracks of so wellknown a company and in the greatest citj of the country,both of which circumstances will unite in causing theresults of the work being watched with much interest byrailway men everywhere. The contractors estimate t

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