and riveted together. The details ent modes of connection are in use for this purpose. of the construction vary somewhat with the form of In one the furnace end is left- plain and the flange is furnace attachment adopted, with the size of the boiler, all on the combustion chamber sheet, as in Fig.… … The tubes are secured into the tube sheets by “ex¬ panding,” and “beading” or turning over at the back or at both the back and front ends. See Figs. 8, 9, 10. Tubes are expanded by means of a tool as shown in Fig. 11 representing the Dudgeon expander. The tool is introduced into the mouth of the…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
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