File:The Street railway journal (1908) (14757272231).jpg

Identifier: streetrailwayjo311908newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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ed through the Huber-Oerlikon side contact system. The motor cars carry four40-hp motors. The car equipment and generating machin-ery of the hydro-electric station was furnished by theOerlikon Company. three-phase railways The Valtellina three-phase railway system now com-prises a total length of 106.3 kilometers (66 miles). Ithas been found that one man is sufficient to run the electriclocomotive, but to have a man ready in emergencies theconductor and motorman alternate positions, so that thereare two capable men on a train at all times. The i6-cycle, 3300-volt, three-phase line through thefamous Simplon Tunnel, which is 19.8 kilometers (12.3miles) long, now receives power from two stations nearthe terminals of the line, one at Brieg, Switzerland, andthe other at Iselle in Italy. These stations originally wereused to supply current for the drills and other tools usedin boring the Simplon Tunnel, and as they are not as up-to-date as desirable, it is planned eventually to generate all
Text Appearing After Image:
CENTER POLE C.-VTEN.ARY SUSPENSION ON THE RHEINUFERRAILWAY, BETWEEN COLOGNE AND BONN, GERMANY the power in one station. One of the accompanying illus-trations shows the overhead work in the large railway yardat Brieg, from which it will be noted that a separate poleline is used for every track so that a breakdown on onetrack will not interfere with train operation on the others.In the tunnel the trolley is carried from span wires at- J May 2, icp8.) STREET RAILWAY JOURNAL. tached to bronze anchors cemented in the walls. The tun-nel trolley wire is carried 4.8 ni (15 ft. 9 in.) above theroadbed and in the open 5.2 m (17 ft.) above the roadbed.The trolley is suspended at intervals of 25 m (82 ft.) ontangents and I2j^ m (41 ft.) on curves. One interestingdifference between the Simplon locomotive and the Val-tellina is that the speed variation in the former machineis obtained by changing the number of poles and not bymaking cascade connections. CORRESPONDENCE THE INTERSTATE COMMERCE CLASS

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