. The Street railway journal . between flanges Large Size Sectionof flange Street H. F. FIG. 1.—DETAIL OF STEEL-TIRED MOTOR WHEEL, BOSTON ELEVATED RAILWAY CARS that the conditions of grades and curves on the Boston ElevatedRailway system, owing to the narrow and crooked streetsthrough which the line runs, are undoubtedly more severe thanthose in any other city, so that the wear caused to both wheelsand rails has been serious. In addition, the company hasgiven special attention to the wheel question in an effort to re-duce the noise from the cars on its elevated structure. As iswell
. The Street railway journal . between flanges Large Size Sectionof flange Street H. F. FIG. 1.—DETAIL OF STEEL-TIRED MOTOR WHEEL, BOSTON ELEVATED RAILWAY CARS that the conditions of grades and curves on the Boston ElevatedRailway system, owing to the narrow and crooked streetsthrough which the line runs, are undoubtedly more severe thanthose in any other city, so that the wear caused to both wheelsand rails has been serious. In addition, the company hasgiven special attention to the wheel question in an effort to re-duce the noise from the cars on its elevated structure. As iswell known, the company has made a careful study of thedifferent factors which produce noise in the operation oftrains on elevated structures, and as a result has been suc-cessful in greatly ameliorating the original conditions. The oM--. FIG. 2.—SECTION OF MOTOR WHEEL STEEL TIRE exact extent to which the attention paid to the wheel questionis responsible for this improvement is difficult to suggestions have been tried, such as the use of woodenblocks and other cushioning material under the track rails,ballasting the track, etc., but more has undoubtedly been ac-complished by strict attention to keeping the wheels abso-lutely round, and by careful attention to having the other partsof the car equipment, such as brake chains and shoes, kepttight, so they do not clatter, than in any other way. facturers, among them the Midvale and Latrobe Steel Com-panies, and Krupp, of Essen, Germany. The work of changing wheels is carried out at the SullivanSquare car house, and the wheels on about twelve cars arechanged each day. In doing this the company has adopted thepolicy of keeping spare trucks and not spare cars, and the pro-
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
