. The Street railway journal . k railway on account of the severegrades. Shunt-wound motors are used to secure regenera-tion. The saving in current is given as follows: 50 percent of the current required in going up a grade of percent; 56 per cent on a grade of per cent; 59 per centon a grade of 15 per cent; 62 per cent on a grade of cent. The Mt. Vesuvius Railway, which was described in theissue of this paper for May 7, 1906, is owned by & Sons, the well-known tourist agency. This systemis an interesting combination of the ordinary overheadtrollev, rack and cable s
. The Street railway journal . k railway on account of the severegrades. Shunt-wound motors are used to secure regenera-tion. The saving in current is given as follows: 50 percent of the current required in going up a grade of percent; 56 per cent on a grade of per cent; 59 per centon a grade of 15 per cent; 62 per cent on a grade of cent. The Mt. Vesuvius Railway, which was described in theissue of this paper for May 7, 1906, is owned by & Sons, the well-known tourist agency. This systemis an interesting combination of the ordinary overheadtrollev, rack and cable systems. This line also uses shunt-wound motors to secure regeneration. 1 728 STREET RAILWAY JOURNAL. [Vol. XXXL No. i8. SINGLE-PHASE RAILWAYS An interesting test line has recently been built by themanagement of the Prussian State Railways at Oranien-burg, about 50 kilometers (31 miles) north of Berlin, thepurpose being to study ballast, rail joints, ties, in ashorter period than would be possible under ordinary oper-. ENTRANCE TO THE .SIMPLON TUNNEL AT BRIEG,SWITZERLAND ating conditions. It is also intended to use this sectionfor trying out motors, electric control systems, etc., as totheir availability for trunk line service. The track, whichis built in a forest, is circular, kilometers ( miles)long and without grades. Cars can be operated on it up to50 kilometers (31 miles) an hour. Up to the present timeexperiments have been conducted with two 52-ton motorcars, each equipped with two Winter-Eichberg single-phasemotors having an hourly rating of 110 horse-power, a con-tinuous rating of 45 horse-power and a maximum rating of125 horse-power. The trolley current is 6000 volts, 25cycles, collected through pneumatically operated slidingbows. The trolley wire is suspended as a catenary. Anunusual feature about the tests is the control of the carfrom a small building along the route and the automaticnumbering of round trips. In the Street Railway Journal of April 6, 1
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
