. Railroad construction, theory and practice; a text-book for the use of students in colleges and technical schools . Fig. 193.—Fire-brick Arch. Fig. 194.—^Wootten Fire-box. 404. Area of grate. The older types of engines, as represented by the American, ^ Mogul or ^ Consolidation type,always had the fire-box set between the drivers, which practicallymeant that the maximum effective inside width of the fire-boxwas limited to about 3 ft. 5 ins. for standard-gauge maximum distance over which a fireman can properlycontrol a fire is perhaps 10 to 11 ft., but such extreme lengthsare
. Railroad construction, theory and practice; a text-book for the use of students in colleges and technical schools . Fig. 193.—Fire-brick Arch. Fig. 194.—^Wootten Fire-box. 404. Area of grate. The older types of engines, as represented by the American, ^ Mogul or ^ Consolidation type,always had the fire-box set between the drivers, which practicallymeant that the maximum effective inside width of the fire-boxwas limited to about 3 ft. 5 ins. for standard-gauge maximum distance over which a fireman can properlycontrol a fire is perhaps 10 to 11 ft., but such extreme lengthsare objectionable. The grate area was thus quite definitelylimited. The Wootten fire-box, illustrated in Fig. 194, obtaineda fire-box eight feet mde by raising it above the level of thedrivers, as shown, but this required that the drivers should beobjectionably small in diameter, except for low-speed engines,or that the fire-box would be set objectionably high. The lastdifficulty has been solved by engines of the Columbia, At-lantic, Pacific, Mikado, and Santa Fe types, all ofwhich have a pair of trailing wheels
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