Identifier: streetrailwayjo121896newy (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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ny of thebuildings of the company. The Hack-ensack water is delivered under heavypressure and can also be used for fireor house service. The power house furnishes livesteam reduced to twenty pounds pres-sure for heating the car house and ferryhouse through underground mains.These steam pipes are insulated andprotected, as shown in Fig. 22. Ordi-narily steam pipes are run undergroundin wooden logs. Even if these arelined with tin, they will char and rot,are difficult to replace and the leakagewill wet the insulating covering onthe steam pipe, thus impairing itsefficiency. In running undergroundsteam mains the pipe covering shouldbe depended upon for insulation, andthe use of the outside casing shouldsimply be to exclude water and toafford mechanical protection. Asshown, the steam pipe is here insulatedby asbestos fire felt covering. It isthen laid in special halved drain tileand kept centered by three prongedcast iron chairs which allow an air spaceof an inch between covered steam pipe
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344 STREET RAILWAY JOURNAL. (Vol.. XII. No. 6. and tile. The joints of the tile are carefully laid inPortland cement so as to be watertight, and the drain isgiven a sufficient slope to carry off any water that mightaccumulate. Journal for April last. This system consists of twoduplicate pipes of suitable section, both being used ordi-narily. In case of accident to one, it is cut off and theother forced during the interval of repair. As shown in

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