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 17
iding the possibility of its burning aw^ayor weakening through over-heating, as has frequently hap-pened in the case of other designs. The fronts for the boiler are what is known as the wroughtiron style—that is, the entire general framework of thefront is made up of wrought iron or steel beams,… … Fig. 4 bear view of 250 h. p. c ah all horizontal boiler suspended ready for brick work Cahall Water Tube Boiler 7 ternal heat^ which has been heretofore one of the greatestfaults found with this type of boiler. All the tubes used in this boiler are made of the bestknobbled charcoal iron^ which…
