File:The street railway review (1891) (14758596542).jpg

Identifier: streetrailwayrev13amer (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

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
station will contain two Westinghouse J.so-kw.. oil-cooled transformers, supplying approximately l.ooo volts to thetrolley line. This voltage is by no means an arbitrary limit, but wasdeemed sufficient, though a much higher voltage could be employed. The cars, about 60 ft. long and weighing about 50 tons each, willbe supplied with M. C. B. high-speed trucks, and it is expected thata normal speed of 40 to 45 miles per hour will be attained, witha possibility of 60 miles. .\ branch line from Washington to Laurel, Md.. 14 miles, is nowbeing operated by direct-current, and will l>e taken over by theWashington, Baltimore & Annapolis company. Current fur this huewill be furnished by two Westinghouse aoo-kvv., 550-volt, 500 r. p.ni.. single-phase rotary converters located in the power house at1 lyattsville. This apparatus is also a new departure, especially sinceit shows the possibility of operating the new system with the exist-ing direct current equipments, which are to be retained.
Text Appearing After Image:
-( o.NCKi; I I, .\ii.\i.m: ;;.,\.\i. iii.ii;i.n. with the primary and secondary windings on separate cores, avoidsIhc difficulties of the direct-current controller, being entirely non->parkinK, and is adapted to handling very heavy currents. As a frequency of 2,000 alternations per minute is used, thelighting of the cars and sub-stations was at first considered a seriousdifficulty. Ihis is overcome by the use of very low-voltage lamps,allowing the use of a thick filament with considerable heat inertia. Westinghouse multiple-unit control and air brakes will be used,the air compressor iKring driven by a small altcrnaling-cnrreiil scriesmotor. Ihe grnrratiiig slalinn, now imder construrlion at llyaltsvillc. PORTABLE CONCRETE MIXING PLANT. Ihc accuiupanying illuslralions were finiiislied by the cuurtes.vof Mr. John Kerwin. superinlendent of tracks of the Detroit UnitedHy. Co., and show a construction train especially designed for plac-ing concrete oit street railway tracks, which is th

Note About Images