c should fallbelow its level in A b, the atmospheric pressure will exceed thatof the steam, and the quantity of the excess may be ascertainedexactly in the same way. If the tube be glass, the difference of levels of the mercury wouldbe visible; but it is most commonly made of iron; and, in order… … STEAM GAUGE—FURNACE. 13. The most important appendage of the boiler is the furnace,which consists of a grate, upon which the fuel is maintained incombustion,—a system of flues, by which the flame and heatedgases proceeding from the fuel in combustion are conducted incontact with the boiler, so as…
Steam-engines · Steam-navigation · Locomotives
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