. The street railway review . y stresses are all carried on the steel frame ofthe building. The arrangement of the apparatus is apparent from the generalplan, longitudinal and transverse sections shown in accompanyingengravings. Two Custodis stacks 16 ft. inside diameter at the topand 162 ft. high, set on foundations extending 63 ft. above the boilerroom floor giving 225 ft. above floor, are on a north and south cen-ter line. On each side of each stack is space for six boilers, an ar-rangement permitting of short and direct smoke flues from linilersto stacks. Above the boilers are the coal bun
. The street railway review . y stresses are all carried on the steel frame ofthe building. The arrangement of the apparatus is apparent from the generalplan, longitudinal and transverse sections shown in accompanyingengravings. Two Custodis stacks 16 ft. inside diameter at the topand 162 ft. high, set on foundations extending 63 ft. above the boilerroom floor giving 225 ft. above floor, are on a north and south cen-ter line. On each side of each stack is space for six boilers, an ar-rangement permitting of short and direct smoke flues from linilersto stacks. Above the boilers are the coal bunkers, which have an aggregatecapacity of 2,800 tons. The two bunkers are continuous from end to end of the building,and are built of concrete reinforced with steel sloping portion of the wall next the boilers is similarlyreinforced. All of the beams in the bunker walls are framed intothe steel building structure, with girders placed to take the thrustsdue to the coal pressure on each wall, and transmit them to the. July 20, 1904.] RAILWAY REVIEW. 443 deep cross girders supporting the bunkers. This construction obvi-ates the need of tic rods through the bunkers, whicli always givetrouble because of their short life, and the obstruction offered tofree flow of the coal. Over each boiler is a steel hopper, thesehoppers forming, with the ■iloping wall, the bottom of the bunker. By placing the coal bunkers back over the boilers as far as theflues permit, and dividing the capacity between two bunkers, spaceis gained for a wide light shaft. This shaft has a skylight in theroof and ample light is afforded. This arrangement was designedby Mr. Sargent to get ample light into the boiler room and is aradical change from the usual scheme of overhead bunkers, whichshut off all light from the firing room. The cross section also shows the location of the ash hopper, coalcrushing machinery, and the conveyor lines. Of the 24 boilers provided for in the portion of the buildin
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
