Cyfarthfa Ironworks

The Cyfarthfa Ironworks were major 18th- and 19th-century ironworks in Cyfarthfa, on the north-western edge of Merthyr Tydfil, in South West Wales.

The Cyfarthfa works were begun in 1765 by Anthony Bacon , who in that year with William Brownrigg, a fellow native of Whitehaven, Cumberland, leased the right to mine in a tract of 4,000 acres land on the west side of the river Taff at Merthyr Tydfil. They employed Brownrigg's brother-in-law Charles Wood to build a forge there, to use the potting and stamping process, for which he and his brother had a patent. This was powered by water from the river, the race dividing into six to power a clay mill , two stampers, two helve hammers and a chafery. The construction of the first coke blast furnace began in August 1766. This was intended to be 50 feet high with cast iron blowing cylinders, rather than the traditional bellows. It was probably brought into blast in autumn 1767. In the meantime, Plymouth ironworks was leased to provide pig iron for the forge.

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