. The street railway review . lt for 5 ft. of solidrail; with 736 amperes the drop with the joint was .065 volt, andwith 758 amperes without the joint. .069 volt. It is almost needlessto say that in view of these tests cast-welded joints are not bonded. No one standard type of overhead construction is found on thesystem of the Union Traction different methods being em-ployed in different portions of the city. On a number of thedown-town streets phosphor bronze wire is used for span work,with No. o trolley w-ire, while in the suburbs a large amount ofgalvanized steel span wire, with No. 00
. The street railway review . lt for 5 ft. of solidrail; with 736 amperes the drop with the joint was .065 volt, andwith 758 amperes without the joint. .069 volt. It is almost needlessto say that in view of these tests cast-welded joints are not bonded. No one standard type of overhead construction is found on thesystem of the Union Traction different methods being em-ployed in different portions of the city. On a number of thedown-town streets phosphor bronze wire is used for span work,with No. o trolley w-ire, while in the suburbs a large amount ofgalvanized steel span wire, with No. 00 trolley wire is insulation is used exclusively, however, and heavy ironpoles have been erected tliroughout. tin- niinimuni weight forthese being 913 lb. The West Side car barns and storehouses are as follows: Store-room for general supplies. Western Ave. and Warren St., two storybrick, 125 X 96 ft.; car barn, Campbell and Armitage Aves., twostory brick, 400 x 254 ft.; car barn. Division St. and Western .\ ENGINE ROOM. HOBBIE ST. STATION. CHICAGO UNION TRACTION ENGINES. spring, when he returned to Chicago and became chief engineer forthe Illinois Telephone Construction Co. Mr. Chapman is now at thehead of the electrical department of the Chicago Union TractionCo.; his latest power house is that for the Northwestern Elevated; heis also electrical engineer of the Consolidated Traction Co. The lines of the Chicago Union Traction Co. comprise of electric, miles of cable and miles of horse road,a total of miles; of this two-thirds is on the west side. The company has about 12,000 cast-welded joints in its track;part of which were made by the Falk Co. and part by the .AmericanImproved Rail Joint Co. Quite recently the company bought twoof the Falk welding outfits and will, as soon as practicable, weld allof its tracks. So much has been said, pro and con. concerningthe cast-weld joint as an electrical conductor that we are quite
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
