A descriptive and historical account of hydraulic and other machines for raising water (1850)
Ewbank, Thomas, 1792-1870 · New York, Bangs, Platt, & Co. · leaf 289
the bottom.When by the descent of thepiston water is forced out No. 120. Forcing Pump with Air-vessel. Qf ^ cylin(Jer> part of ft enters the pipe, and part rushes past it and compresses the air confined inthe upper part of the vessel; and when the piston is raised to draw afresh portion into the… … 266 Description of the Machine of Ctesibius by Vitruvius. [Book III. ment; its flow from the discharging orifice being merely rendered uniform,or nearly so. In the ordinary use of forcing pumps a constant instead of an inter-rupted flow of water from the discharging orifice, may be a matter ofno…
Pumping machinery
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