Identifier: streetrailwayrev01amer (find matches)
Title: The street railway review
Year: 1891 (1890s)
Authors: American Street Railway Association Street Railway Accountants' Association of America American Railway, Mechanical, and Electrical Association
Subjects: Street-railroads
Publisher: Chicago : Street Railway Review Pub. Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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-. The steam from each boiler is discharged into a main header through the pipes of proper size 20 feet centers,each boiler pipe being controlled by a Jenkins gate valve. The Jenkins gate valve is used throughout the plant, as it gives an opening equal to the area of the pipe and the seats being composition and removable, they will remain permanently tight. The main header is supported by proper hangers leaving it free to move under expansion and contraction,and without causing leaks, due to the long arms made by the 20 feet pipes connecting it into each boiler; at a point near each end of the main boiler header are branch headers for each battery of engines; the engine header is placed centrally over the engines. From the top of this steam header, branch pipes are run to each engine with 5 foot horizontal centers and 8 foot vertical centers. It will be observed that the ^85
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286 arrangement of these pipes throughout are practically in the shape of the letter U which gives ample opportunity for expansion and contraction without loosening the joints. Separators are placed in each engine header draining into the combined pump and receiver, thus allowing the steam to pass to the engines practically dry. It is expected that this plant will easily operate on a coal consumption of 2 pounds per horse power, per hour,as the division of the plant is such as to permit of operation with nearly maximum load under all conditions of car service. A brick stack, 8 feet inside diameter 140 feet high,resting on a solid concrete block 24 feet square, 10 feet deep, is substituted in place of the separate iron stacks shown in illustration, the boilers connected into this stack through a masonry flue. Pierce & Thomas, Engineers and Contractors, 42 Cortlandt Street, New York City, furnished the plan for the building, which together with the stack was built by the Railway Company. T

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