File:The street railway review (1891) (14573986399).jpg

Identifier: streetrailwayrev02amer (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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.. 476,603 Tramway Switch, J. R. Wiggington, Washington, D. C 47^,713 Fare Register, J. K. Greenleaf, New Haven, Conn 476,74; 343 THE COLUMBIAN UNDERGROUND SYSTEM. Tllli numerous inventions of the past two or threeyears, looking toward a commercially and electric-ally perfect system of underground electric trac-tion, have been supplemented by the inventor , D. J-Murnane, of St. Louis, under patents granted March, 1891The promoters of the device have established a work-jii- model in Room 73, Exchange Building, Chicago. with the clip and the current is conveyed to the motor.After the trolley has passed, the brusii falls to its verticalposition and the next one is tilted. Thus one brush is always in the circuit and for thegreater part of the time as the car passes, two brushesare feeding the current into the motors. The shank ofthe brush swings on the shaft which holds the clips. Asthe entire contact switch is enclosed by a cap not shownin the engraving, the device is moisture proof. The
Text Appearing After Image:
CONDUIT COLUMBIAN UNDERGROUND ELECTRIC RAILWAY. The general appearance of the model suggests thecable system, and indeed is intended to show the methodsof using cable ways for this traction. Themethod is simple and not altogether unex-ploited. The car ma\ be fitted with one or twomotors, as work would require, and a slotbuilt especially for it is of less depth than anordinary cable way, and as in the case of thetrolley, the rails are used for the return. Alead covered cable conveys the current to cer-tain points, at more or less distances apart, ac-cording to necessity, where the current iscommunicated to the trolley board, 16 feet long,running lengthwise way of the car. Our illus-tration shows roughly the method used. Asliding trolley, as we may call it, is hung fromthe trucks of the car. This trolley is 16 feetlong, and built substantially, with a thin sheetof copper on the upper surface, which collectsthe current from the contact switches placedat intervals of twelve feet, and conv

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