. The Street railway journal . s, which covers laid on the reinforced concrete floor. Asimilar construction is used at the Dean Street station plat-form. June 22, 1907.] STREET RAILWAY JOURNAL. 1107 DRAINAGEFrom the cut on page 1104, showing the construction be-twen Atlantic Avenue and Pacific Street, it will be noted thatthe roadbed is drained through a depression in the concrete,which throws off water through 2i/2-inch wrought-ironpipes set at intervals of 24 ft. In general, the walls aredrained through 3-in. weepholes pierced at various intervals. THE DEAN STREET STATION


. The Street railway journal . s, which covers laid on the reinforced concrete floor. Asimilar construction is used at the Dean Street station plat-form. June 22, 1907.] STREET RAILWAY JOURNAL. 1107 DRAINAGEFrom the cut on page 1104, showing the construction be-twen Atlantic Avenue and Pacific Street, it will be noted thatthe roadbed is drained through a depression in the concrete,which throws off water through 2i/2-inch wrought-ironpipes set at intervals of 24 ft. In general, the walls aredrained through 3-in. weepholes pierced at various intervals. THE DEAN STREET STATION The station at Dean Street will be built at the street levelwith a stairway leading to each side platform. The ex-terior of the building will be of hard-burned brick withbluestone copings, and the interior will be faced with whiteenameled brick. Each of the two platforms will be carried on 50-ft. spangirders resting directly on the concrete piers forming apart of the retaining walls. They will have ornamental BOILER EFFICIENCY. SECTION OF DEAN STREET STATION iron paneled fences, and the platform floor will be of re-inforced concrete. The innovation in the platform fencesis that their sheet-iron panels are constructed to the exactsize of standard advertising posters, thereby eliminating theunsightly advertising boards so commonly used on ele-vated station platforms. The canopy is constructed of steelSs« /»,/,7^-/./.p//>.^, ^^. posts with a single col- SK firs-cf-^ffor^ „ .... umn on the outside ot the platform. The topslopes over the entire Experiments now being conducted by the boiler divi-sion of the United States Geological Survey fuel-testingplant at St. Louis, Mo., on the nature of boiler efficiencieshave suggested that stationary boilers ought to be madeto do ten to twenty times as much work per unit of heat-ing surface as they do now. This great increase in ca-pacity is to be obtained by subdividing the heating surfaceand water streams more finely, by allowing less


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884