| Rating | Solver | Clue |
|---|---|---|
| PLUNGER | Force pump | |
| FORCER | The solid piston of a force pump; the instrument by which water is forced in a pump. | |
| AIR PUMP | A kind of pump for exhausting air from a vessel or closed space; also, a pump to condense air or force it into a closed space. | |
| SINGLE-ACTING | Having simplicity of action; especially (Mach.), acting or exerting force during strokes in one direction only; -- said of a reciprocating engine, pump, etc. | |
| AIR GUN | A kind of gun in which the elastic force of condensed air is used to discharge the ball. The air is powerfully compressed into a reservoir atta... | |
| MANOMETER | An instrument for measuring the tension or elastic force of gases, steam, etc., constructed usually on the principle of allowing the gas to exe... | |