plane passing through the flues is exhibited in fig. 4. Thefurnaces F communicate in pairs with the flues e, the air followingthe course through the flues represented by the arrows. The flue epasses to the back of the boiler, then returns to the front, then Fig. 5. … 132 MARINE BOILERS. to the back again, and is finally carried back to the front, whereit communicates at c with the curved flue b, represented in thetransverse vertical section, fig. 5. This curved flue b finallyterminates in the chimney a. There are, in this case, three inde-pendent boilers, each…
Steam-engines · Steam-navigation · Locomotives
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