Cornish pumping engines

Cornish pumping engines are large steam engines developed in the 18th and 19th centuries, primarily used for draining water from mines, particularly in Cornwall, England. They operate on a simple principle: steam pressure lifts a piston, which then uses a system of rods and levers to pump water out of deep mine shafts. Known for their efficiency, they were crucial during the mining boom for extracting tin and copper. Cornish engines are characterized by their strong build, lasting power, and a unique design, often featuring a large beam that moves back and forth to drive the pump.