. American engineer and railroad journal . bumper. The back tank itself is also built down tothe frame and secured to it by two 3x3x5^ in. steel angles, and,as the bottom of the tank is supported by two crossbars of 5/16in. steel plates, the whole construction is exceedingly rigid. Boiler.—This is of the extended wagon top type, with medium width firebox. There are 173—2 in. flues and 22—5 in., all 13 just above the crown. The boiler, although not strictlyof the wide firebox type, has ample capacity to supply steam tothe cylinders at any speed; this is shown by the B. D. factorof 753


. American engineer and railroad journal . bumper. The back tank itself is also built down tothe frame and secured to it by two 3x3x5^ in. steel angles, and,as the bottom of the tank is supported by two crossbars of 5/16in. steel plates, the whole construction is exceedingly rigid. Boiler.—This is of the extended wagon top type, with medium width firebox. There are 173—2 in. flues and 22—5 in., all 13 just above the crown. The boiler, although not strictlyof the wide firebox type, has ample capacity to supply steam tothe cylinders at any speed; this is shown by the B. D. factorof 753 well within the limits of good practice. The injector check is of the latest Canadian Pacific type* lo-cated on top of the boiler 30 in. back of the flue sheet and isplaced underneath the bell stand. The check casting propercombines the discharge from both injectors and also has a con- See American Engineer, Nov., 1909, page 427. ,v u X ~-=;^- /of ::i;iiov:; Oil GrooTcs i^ [^ 5. m Top Wedge. =_r Section A-A. Material Cast Bottom Wedge. -2 Section B-B. -;^Material Cast Iron. SLIDING CENTERING PLATES ON ENGINE TRUCK 438 AMERICAN ENGINEER AND RAILROAD JOURNAL. November, 1910.


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering