File:The Street railway journal (1904) (14575145938).jpg

Identifier: streetrailwayjo241904newy (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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hese conditions the intense heatusually encountered over boilers will largely be obviated. tion and for heavy repair, and its use has greatly assisted thespeedy assembling of the boiler plant. BLOWERS AND AIR DUCTS In order to burn the finer grades of anthracite coal in suffi-cient quantities to obtain boiler rating with the hand-firedgrates, and in order to secure a large excess over boiler ratingwith both the larger grades of anthracite and bituminous coals,on the hand-fired grates and the automatic stokers, respectively,a system of blowers and air ducts has been provided in thebasement under the boilers. The air-duct system is designedso that one blower is provided for every three boilers, witharrangements for supplying all six boilers from one blower. A partial equipment of twelve blowers is being supplied bythe B. F. Sturtevant Company. The blowers aie II ft. highabove the floor and K ft. 6 ins. wide at the floor line. Each bl ower is direct connected to a two-crank 7_.-in. x 13-
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October 8, 1904.) 6y2-m. upright, compound, steam engine of the self-enclosedtype. Each blower is to provide a sufficient amount of air toburn 10,000 lbs. of combustible per hour with 2-in. water pres-sure in the ash pits. SMOKE FLUES AND ECONOMIZERS The smoke-flue and economizer construction throughout thebuilding is of uniform design, or in other words, the smoke-flue and economizer system for one chimney is identical withthat for every other chimney. In each case the system is sym-metrically arranged about its respective chimney, as can beseen by reference to the accompanying plans. The twelve boilers for each chimney are each provided withtwo round smoke uptakes, which carry the products of com-bustion upward to the main smoke-flue system on the econo-mizer floor. A main smoke flue is provided for each group ofthree boilers, and each pair of main smoke flues join togetheron the center line of the chimney, where in each case one com-mon flue carries the gases into the side of the c

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