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Wheal Martyn Waterwheel
Wheal Martyn China Clay Museum, Cornwall, UK
Wheal Martyn Waterwheel
associated engineer
Not known
date  circa 1884
era  Victorian  |  category  Waterwheel  |  reference  SX005554
ICE reference number  HEW 795
photo   Chris Allen and licensed for reuse under this Creative Commons Licence
A 35ft diameter timber and cast iron waterwheel that provided the power to pump china clay slurry to the surface at the Wheal Martyn pit.
Waterwheels were used in Cornwall to harness water power for use in mines and clay pits before the industrial revolution. Power was transmitted through horizontal iron rods supported on rollers, reciprocated by a crank on the wheel.
The one at Wheal Martyn is an overshot pitch back type. It operated rods over a distance of 1000 yards to plunger pumps in a shaft halfway down the pit wall.
The exact installation date is unknown but a wheel is noted on an 1884 map. The pit closed in 1930, though the wheel remained in use until 1940. It was restored in 1976.
reference sources   CEH South

Wheal Martyn Waterwheel