L2021_3972 18 Foot Water Wheel - Wheal Martyn - Cornwall

The 18ft Water Wheel which provided power to the slurry pump. The wheel is in full working order.Also visible is the "balance bob".

For a gallery of images of Wheal Martyn please click here: www.jhluxton.com/Industrial-Archaeology/Mines-of-Devon-Co...

Wheal Martyn China Clay Museum is a museum of china clay mining, at Carthew 2 miles north of St Austell in Cornwall, England.
The museum is in a preserved Victorian china clay works.

The museum occupies 26 acres. A large collection of artefacts, machinery, photographs etc are preserved. The Museum was established in 1975. Part of the site is a Scheduled Monument, listed on April11, 1979. It is also Site of Special Scientific Interest, because of the geological features of the locality.

HISTORY
In 1790 Richard Martyn bought the Carthew Estate, and his son Elias started the Wheal Martyn china clay works there in the 1820s. By the 1840s there were five pits, and by 1869 Wheal Martyn was producing 2000 tons of clay a year. After Elias's death in 1872, his son Richard closed or leased works to other operators.

John Lovering took on the lease of Wheal Martyn in the 1880s and made many modifications to the works. The pit at Wheal Martyn closed in 1931, but the pan kiln, for drying clay, was used for clay from nearby pits until 1969.

The Gomm china clay works, which is also part of the site, was leased by the Martyn brothers from the Mount Edgcumbe Estate circa 1878 and was worked until the 1920s.
Wheal Martyn pit reopened in 1971 and is now worked by Imerys Minerals Ltd.

In order to pump clay slurry from the pit, which is some distance from a source of water, a system of iron rods transmits power, by a reciprocating motion, from a waterwheel of diameter 35 feet, made at Charlestown Foundry in the 1880s.

The waterwheel was in use until about 1940 and was restored in 1976.

The slurry pump, used to pump slurry around the site, is powered by a waterwheel of diameter 18 feet, built about 1902.
There are areas that were used for thickening the clay: settling pits, with a sloping floor, where the clay settled for several days until it had about 12% solids; settling tanks, where the clay reached about 30% solids in two to three months; the pan kiln, or "dry", where clay was heated from below by gases from coal-fired furnaces, and dried in one to three days, depending on the distance from the fire end.

Adjacent is the linhay, where about 1000 tons of clay could be stored; from here it was taken away to the customer.
Transport

Examples are exhibited of transport used in the clay industry: a Peckett railway locomotive of 1899, used at Lee Moor Pit in Devon; a 19th-century clay wagon (to be pulled by a team of three horses); a 1934 ERF lorry; and a First World War Peerless lorry.

Taken in: UK / England / Treverbyn / Carthew (show map)

Taken on: September 13, 2021

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Camera: Leica Camera AG LEICA M (Typ 240), f/4.8, 1/180 sec, 28mm, ISO 1250 (more info) (hide info)

Camera:	Leica Camera AG LEICA M (Typ 240)
Lens:	Elmarit-M 1:2.8/28 ASPH.
Aperture:	f/4.8
Exposure Time:	0.006 sec (1/180)
Focal Length:	28mm
ISO:	1250
Exposure Bias:	0 EV
Flash:	Fired
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Center-weighted average
White Balance:	Auto
Saturation:	High
Sharpness:	Hard
Color Space:	sRGB
Software:	Adobe Photoshop 22.5 (Windows)
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