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 28
accurately sized, madetapering, and the tubes fixed therein by an expander. Thesections thus formed are connected with the drum, andwith the mud-drum also by short tubes expanded intobored holes, doing away with all bolts, and leaving a clearpassageway between the several parts. The openings… … Fig. S side view of babcock & wilcox boiler of wrought steel construction 18 Steam Engineering contacts, and are held in place by wrought-iron forgedclamps and bolts. They are tested and made tight undera hydrostatic pressure of 300 pounds per square inch^ ironto iron, and without rubier…
