A history of the growth of the steam-engine (1878)
Thurston, Robert Henry, 1839-1903 · New York, D. Appleton · leaf 47
ing admitted to each vessel, A and A, alter-nately, and there condensing, the Tacuum formed per-mits the pressure of the atmosphere to force the waterfrom the well through the pipes, G and G. While one isfilling, the steam is forcing the charge of water from theother up the discharge-pipe, M As…
Steam-engines
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