[f. FORCE sb. or v. + PUMP sb.]
1. A pump employed to force water, etc., beyond the range of atmospheric pressure.
1659. Leak, Water-wks., 34. I have thought good also to add this manner of force-Pump, which is one of the best Inventions, and of which I have seen the experience: That which is here of great advantage, is that the forces do Rise and Fall Perpendicularly in their Barrels.
1754. W. Emerson, Princ. Mech. (1758), 276. Force pump, a pump that discharges water by pressing it upwards.
1825. J. Nicholson, Operat. Mechanic, 281. The fire-engine by Rowntree is a double force-pump, of a peculiar construction, similar in its action to the beer-engine.
2. (See quot.)
1838. Simmonds, Dict. Trade, Force-pump … the plunger pump for supplying the boiler of a locomotive engine.
