. American engineer and railroad journal . f 19miles. Upon this grade there are numerous 23i-degree curves,and many of them are more than 180 uegrees in length. The en- The firebox is 10 feet long by 37| inches wide, the depth being75 inches at the back and 82 inches at the front end. This typeof boiler is too well known to require comment further than tocall attention to its large size and to the three rows of sling staysat the front end of the crown sheet, and to the four long S4 by1| inch braces from the front course to the back head. The en-gravings show the method of attaching these brace
. American engineer and railroad journal . f 19miles. Upon this grade there are numerous 23i-degree curves,and many of them are more than 180 uegrees in length. The en- The firebox is 10 feet long by 37| inches wide, the depth being75 inches at the back and 82 inches at the front end. This typeof boiler is too well known to require comment further than tocall attention to its large size and to the three rows of sling staysat the front end of the crown sheet, and to the four long S4 by1| inch braces from the front course to the back head. The en-gravings show the method of attaching these braces, and alsothe other bracing of the back head by means of the H-inch roundrods which pass through the upper part of the water legsalong the sid^s of the wide portion of the firebox, and also thoseused to stay the upper corners of the back heads. Angles, 6 by6 inches in size, are used to stiffen the Back heads for the rodsthat pass along on each side of the firebox. The working pressureis 180 pounds. The boiler covering is Johns fire Heavy Freight Locomotive, Mexican Central Railway. gine was designed and built by the Brooks Locomotive Works,and is the largest and heaviest ever built there, the total weightbeing about 193,450 pounds, of which 145,200 pounds are on thedriving wheels. The engine has eight coupled wheels and twopony trucks. The boiler is the Player patent, Belpaire type,with three rows of sling stays at the front end of the crownsheet. The boiler is very large, the diameter of the first course beirg78 inches. The fuel is to be bituminous coal and the latter there is a large available supply where this engineis to be used. For convenience in comparing this engine withseveral other large ones, the following table has been prepared : The cylinders are 21 by 26 inches and the driving wheels are49 inches in diameter. The cylinders are secured to the smokearch by means of a double row of bolts all around, and a glanceat the frame drawing will sh
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
