Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 312
905. … This being the case, attention was early (in the history of the steam engine) given to perfecting thsecond mode named herein—viz.: the condensing of the steam by radiation in closed metallic vessels,kept submerged in water. In this plan the boilers are to be first filled with pure water; the steam…
Mechanical engineering
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