a 25 July, 1897+ closed in a similar manner by a conical plug also held tight by internal pressure. It is a matter, therefore, of but a moment to remove or insert a on a rack. … FIG. 3. tube. Indeed, in marine boilers subject to long panding in the tube sheet will be readily under- periods of idleness, the tubes can all be removed stood from Fig. 3. The tubes have a collar in a short time, and cleaned on laying up, if de- welded on; this is turned in a lathe perfectly…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
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