ng of worn connections; and at The steam and water drum, A, surmounts an annular se- Silesia, there are two pairs of Ccrnish boilers, each 21°5 feet the same time it adds to the safety of the road, especially ries of tubes, B. The latter are of peculiar construction in- long and 5 feet in diameter,… … ful operation for seven years. Each tube, the smoke drift, and contributes something in fact, is a separate boiler, and each being towards increasing the draft. The experi- fastened by its upper end only, is free to expand and con- ments up to the present time show that the efficiency of this For…
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