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When the piston is driven downwards it pulls on a large beam which works a force pump.

There's a big well a hundred feet deep in the stable-yard, and a force pump, which takes two men to work.

Among these, are siphon pumps, the force pump of Ctesibius, a "fire-pump," having two cylinders, and two pistons, valves, and levers.

These were filled by force pumps and fitted with hose made of the intestines of cattle.

This syringe was furnished here and there with golden taps and tubes and tiny force pumps.