oilers,but their steam-producing power is greatly augmented. Experi-ments made by Mr. Watt, at Birmingham, proved that such boilerswith the same consumption of fuel will produce, as compared with k2 131 STEAM NAVIGATION. common land boilers, an increased evaporation in the proportion ofabout tliree… … 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.
Steam-engines · Steam-navigation · Locomotives
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