General rules and regulations prescribed by the Board of supervising inspectors (1913)
United States. Steamboat-inspection service. [from old catalog] · Washington, Govt. print. off. · leaf 31
25 (II, 13) … No. 1.—Full Load on Tube Sheet and Back Plate, Diameter of hangers should be sufficient to carry the weight of combustion chamber and one-half thetubes and furnaces when no water is in boiler. No effect of buoyancy is considered. These remarks are for separate combustion chambers when they are not…
Steamboats
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