The Cyfarthfa works were begun in 1765 by
Anthony Bacon, the
Member of Parliament for
Aylesbury, and
William Brownrigg, who like him was a native of
Whitehaven,
Cumberland. They secured a lease for ninety-nine years to exploit the reserves of coal and iron on the neighbouring estate to
Dowlais for an annual sum of £100 without any liability for royalties. The land which was covered by the lease comprised on the west side of the
river Taff at Merthyr Tydfil. The partners employed Brownrigg's brother-in-law
Charles Wood to build a
furnace and a
forge, to enable them to deploy the
potting and stamping process for which he and his brother had a
patent. The furnace was powered by water from the river, the race dividing into six to power a clay mill (for making the pots), 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 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. Brownrigg retired as a partner in 1777, receiving £1,500 for his share. From about that time
Richard Crawshay was Bacon's partner in his contracts to supply
cannon to the
Board of Ordnance, but perhaps not in the ironworks. Bacon had previously subcontracted cannon-
founding to
John Wilkinson, but henceforth made them at Cyfarthfa, as is indicated by his asking for ships carrying them to be
convoyed from
Penarth. Bacon had the Cyfarthfa Canal, a short
tub boat waterway, constructed during the latter part of the 1770s, to bring coal to the ironworks. Under the
House of Commons (Disqualification) Act 1782 (
22 Geo. 3. c. 45), Bacon, as a
Member of Parliament, had to relinquish government contracts and passed the forge and boring mill with the gun-founding business to
Francis Homfray. However, in 1784 Homfray gave it up to David Tanner an
ironmaster from
Monmouth, to enable his sons to establish the
Penydarren Ironworks. Tanner employed three managers:
James Cockshutt, Thomas Treharne and Francis William Bowzer. However, like Homfray, he did not stay long. Instead, soon afterwards, in 1786, the year of Bacon's death, he gave up the works. Bacon left a family of illegitimate children and was the subject of
Chancery proceedings. The court directed a lease of the whole works to Richard Crawshay, who took as his partners, William Stevens (a London merchant) and James Cockshutt. Crawshay took out a licence from
Henry Cort for the use of his
puddling process, and proceeded to build the necessary
rolling mill. However, difficulties remained with the puddling process and it was not until perhaps 1791 that these were resolved. In 1790 Crawshay terminated the partnership, which had been barely profitable, and continued the works alone, adding further furnaces in the following years. ==The Crawshay heyday==