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 48
d drum, is the shorter, and is varied in the di-mension as to diameter and length in accordance with thepower of boiler required and local conditions. Both drumsare closed at one end with the tube sheet, and at the otherend with convexed heads. Tubes. The mud and steam drums are joined togetherby… … Fig. 18wickes vertical water tube boiler to stack, with a clear space between rows sufficient to per-mit of introducing a small hoe for the purpose of removing 36 Steam Engineering any deposit of soot or of sediment which has fallen fromthe tubes and accumnlated on the mud drum tube sheet.…
