Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 535
atmos-phere, the water follows the piston in its ascent, whereas the water above the piston is pushed beforeit, and thus the fluid is discharged in a stream at the mouth C of the pump; and so on to any num-ber of strokes. If a perfect vacuum were formed by the piston as it ascends, the water would…
Mechanical engineering
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