File:The street railway review (1891) (14575032559).jpg

Identifier: streetrailwayrev15amer (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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scent coal en-tering these receivers, which if carried over the belt conveyor tothe bunkers might start a fire; danger from fire is also incurred ifwet coal is stored in bunkers on account of spontaneous ignition. During a recent western trip, Mr. .-V. L. llaydin, chief engineer ofthe power house of the South Side Elevated R. R., in Chicago,show^eci the writer a similar system here adopted for chain stokers. In the New York Manhattan power house, where these receiversare not installed, one man is required for every six boilers to shovelthe coal which falls through, back into the stoker hoppers, and itwill be seen that as long as such provision is necessary there re-mains room for improvement in mechanical stokers. This is theprincipal disadavange of the automatic overfeed stokers. They havemany good features; one in particular is the ensuring of a uniformtemperature throughout the furnace chamber, which is of especialbenefit where superheaters are in.stalled in the boiler flue, as the
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FIG. 2. BOILER ROo.M VItNN.\ MUNICIPAL PLANT. These cars are both filled and propelled by hand, a method whichwhile not the most up to date is the cleanest, and while the cost oflabor is considerably increased the net result is economical, as acareful record of results for each ton of coal is kept and thus thework of the individual stokers closely supervised and the plantoperated most efliciently. In Europe the preference is for handstoking, which is considered often more economical than auto-matic stoking; this may be due to the fact that while in Americait is possible for almost any man to secure a position as stoker, onthe continent of Europe an apprenticeship of several years is re-quired, one year of which is frequently spent in a special trainingschool. Although there are many different types of automaticstokers in use in Europe, they are not generally favorably consid-ered by the continental on account of the comparatively large per-centage of coal which falls through the grate

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