The steam engine familiarly explained and illustrated; with an historical sketch of its invention and progressive improvement; its applications to navigation and railways; with plain axioms for railway speculators (1849)
g, it ismade to receive such a supply as that it never wants reple-nishing, an effect which no effort of attention on the part ofan engine-man could produce. But this is not the onlygood effect produced by this contrivance. A part of thesteam which originally left the boiler, and, having… … BOILER AND ITS APPENDAGES. 121 came, bringing back all the unconsumed portion of its heatpreparatory to being once more put in circulation throughthe machine. The entire quantity of hot water pumped into the cisternc is not always required for the boiler. A waste pipe maybe provided for carrying…
Steam-engines
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