File:Electric railway review (1906) (14760821792).jpg

Identifier: electricrailwayr18amer (find matches)
Title: Electric railway review
Year: 1906 (1900s)
Authors: American Street and Interurban Railway Association
Subjects: Street-railroads Electric railroads
Publisher: Chicago : Wilson Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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lar to the bracketconstruction, and uses the same type of pin and insulator. In the Rochester yard the span construction was specialon account of the distance between supports (which reaches amaximum of 94 feet, where spanning seven tracks, four of r.\-2 ELECTRIC RAILWAY REVIEW Vol. XVIII. No. 15. which are electrified), and also on account of the uncertainnature of the soil. For the long spans, whei-e it was impossible to use guysof the usual type (the river bank being on one side and themain highway, which gives teams access for loading and un-loading of freight cars, on the other side), it became necessary streams and two low bridges over the Erie right of waynecessitated the employment of special construction at thesepoints, particularly at the bridge at Clarissa street, on the out-skirts of Rochester. The original clearances here were solow that the roadbed had to be excavated out and the tracklowered about two feet, tln minimiini clearance between .//oooi^Oi-r^sas/PS:, \SnircMSs
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Electrification of the Rochester Division of the ErieCatenary Trolley Hanger. ifOffOoyoirSi/ssss Electrification of the Rochester Division of the Erie—Diagramof Connectors, Avon Substation. to use self-supporting span construction, and this was doneby using the tripartite type of steel pole, set in concrete.This type of pole being constructed of rerolled Bessemer steelrails, is less subject to rust, and consequently more durablethan any other available type of metal pole, and all of itssurfaces are always open and easy of inspection. On accountof the great tensile strength of the material there is consider- the rails and the trolley wire being finally 18 feet. The mes-senger is fastened to a horizontal spool type insulator mountedat the center of a substantial piece of turned oak, which islong enough to carry two more similar insulators, one oneither side of the center one, the details being shown in anaccompanying illustration. At either side of these overhead obstructions it was n

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