Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 13
Fig. 1return tubular boiler—showing setting Next comes the flue cylindrical boiler, which is somewhatlarger in diameter than the former, generally 40 in. diam-eter and 20 to 30 ft. long, with two large flues 12 to 14 in.diameter extending through it. The return tubular boiler, 1 steam Engineering … Fig. 2 front view of 250 h. p. c ah all horizontal boiler consisting of a shell with tubes of small diameter (2 to 4 in.)extending from head to head through which the hot gasesfrom the furnace pass on their way to the stack. This Return Tubular Boiler 3 boiler, which comes in the third class, is…