File:History of the West End street railway, in which is included sketches of the early street railway of Boston- consolidation of the various lines- foreign street railways- the Berlin viaduct- anecdotes, (14737909346).jpg

Identifier: historyofwestend00hage (find matches)
Title: History of the West End street railway, in which is included sketches of the early street railway of Boston- consolidation of the various lines- foreign street railways- the Berlin viaduct- anecdotes, etc., together with speeches by President Henry M. Whitney, and others. Also, expert testimony as to the safety of electric currents..
Year: 1892 (1890s)
Authors: Hager, Louis P
Subjects: West End Street Railway Company Street-railroads
Publisher: Boston, Ed. and pub. by L. P. Hager
Contributing Library: Northeastern University, Snell Library
Digitizing Sponsor: Northeastern University, Snell Library

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ight ofmaterial, is calculated to sustain a snow load of 20 pounds to everysquare foot of surface and a horizontal wind-storm blowing in eitherdirection against each square foot, at 40 pounds pressure. It con-sists of two-inch planking, then seven-eighths inch boarding, then thesame thickness of plaster, held in place by screeds, to which arefastened the slate. There are two large cupola ventilators on theridge, while light is supplied by three large dormer windows oneach side. The interior of this house is of the most imposing character, thetwelve batteries of water-tube boilers set in white glazed brick, adescription of which is given further on in this work, presenting ata glance not only the magnitude of the work, but a scene rarely ifever to be witnessed in this country. Between the two sections orseries of boilers is a space 20 feet wide, in the centre of which is atrack for hand trucks which convey the coal from the pockets and ishandled automatically in supplying the furnaces.
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WEST END STREET RAILWAY. 83 ■ Underneath this space is a unique mechanism for taking care ofthe ashes, which are emptied through a chute which connects withthe fire door of each furnace directly into a pit, where they are re-ceived by iron hand cars and conveyed to another pit at the end ofthe boiler house. Here the ashes are emptied into a recess in whichis constantly travelling an endless chain gear attached to bucket con-veyors, which carry them to the top of the boiler house, whence asimilar device conveys them to the ash dump, to be hauled away bycartage. ^ The smoke flues are supported from the roof and are locatedbehind the boilers. They are ii feet wide by 13 feet high,tapering to 5x5 feet at the further end. These flues connect theboilers with the economizers and are covered with the Magnesia insulating covering to prevent radiation. Brass piping runs alongthe walls of the boiler house with branches to each side of each bat-tery, with valves, etc., complete, adding material

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