FORCER

, in Mechanics, is properly a piston without a valve. For, by drawing up such a piston, the air is drawn up, and the water follows; then pushing the piston down again, the water, being prevented from descending by the lower valve, is forced up to any height above, by means of a side branch between the two.

See the ways of making these in Desaguliers's Exper. Philos. vol. 2, p. 161 &c. See also Clare's Motion of Fluids, p. 60.

Forcing Pump, one that acts, or raises water, by a Forcing piston. See above.

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Entry taken from A Mathematical and Philosophical Dictionary, by Charles Hutton, 1796.

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