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Combe Mill

Combe Mill restored beam engine

Before restoration

And after ........

In a condensing engine, when one side of the main piston is connected to the steam supply, the opposite side is connected to the condenser, which draws out the steam from the previous stroke. Condensation of the steam creates a partial vacuum in the condenser and thereby increases the force exerted on the piston and improves the efficiency of the engine.

Beam engine

Unrestored Combe Mill Beam Engine