Swansea manufacturing history

 Swansea at the mouth of the Tawe was recognised as a natural harbour by Norse pirates and came into its own with the discovery of bituminous coal which, from the sixteenth century, it was exporting by sea to other parts of Britain and further afield. In 1913 at its peak South Wales produced 56 million tons of coal.

Local deposits made Swansea and its surrounding area the principal place for smelting copper, which from the eighteenth century was much in demand from Birmingham's brass industry. Matthew Boulton and others formed the Rose Copper Company with a smelter on the banks of the Tawe. In time copper ore was brought by sea from Cornwall and Anglesea as well as from overseas to be smelted using the Welsh process and Welsh coal. In 1845, Swansea was producing 55% of the world's copper. Copper was joined by lead and zinc.

Tinplate was, though, what made Swansea's name. Locally produced iron would be dipped in locally mined tin. Tin was also brought in from Cornwall. In 1831, William Llewellyn had founded the Aberdulais Tinplate Company where iron ingots were rolled into flat plates and a thin protective layer of tin attached. It was one of hundreds of tin mills which grew up around the country. Tin was readily available, easy to work and very effective in coating iron and steel to prevent rust.

With the advent of steel, the iron ore local to Swansea had too high a phosphorous content (a problem also found elsewhere) and so ore was sourced from further east. William Siemens was determined to see his method of steel making, as opposed to that of Bessemer, embraced. The tin platers were reluctant and so Siemens set up his own state of the art plant at Landore. It proved successful for tin plate and gradually more plants took on the Siemens system. Swansea went from strength to strength in tin plate production.

Continuous strip mills were introduced alongside electroplating allowing a very thin coating of expensive tin. Demand grew as more and more food stuffs were packaged in tin cans.The producers of South Wales at one time provided three quarters of Britain's production with much going to the USA.

The coming of central heating created a demand for anthracite coal which was in plentiful supply around Swansea and which had proved less suitable for smelting. This provided a much needed boost to the economy.

Swansea had become a town long before Cardiff and residential development ran west along the shore with industry along the banks of Tawe running north. There were hundreds of small copper smelters most of which closed when the industry was consolidated. Balchin's introduction to his book has a vivid description of what remained: 'one of the most concentrated areas of industrial dereliction, desolation and decay in Britain.' Alongside this, the city has long been a cultural and intellectual centre.

I write about the consolidation of the steel industry in Vehicles to Vaccines and this brought about the Steel Company of Wales. This new company embraced amongst others the major tin plate producer Richard Thomas with plants at Velindre and Trostre and built a massive continuous process steel plant at nearby Port Talbot. This complex produced most of Britain's sheet steel and all its tin plate.

Copper production had suffered as other countries came on stream. The same became true of tin plating. Nonetheless Swansea attracted a wide spread of metal and other industries.

Alcoa Manufacturing and British Aluminium produced cast and sheet aluminium as well as wire. Borg-Warner from the USA produced car transmissions. Also from the USA, Jefferson Chemicals produced morpholine for making rubber and Piperazine for pig and poultry feed additives. B.P. refined oil and manufactured chemicals and 3M made tape products. Imperial Metal Industries produced Titanium and Zirconium alloy. International Nickel produced nickel and Imperial Smelting (about which I write more in the context of Bristol) produced zinc and lead. Smiths Industries made watches and Ford UK, rear axles. Mettoy built a factory at Fforestfach to manufacture Corgi toys. In the seventies Morgan Crucible relocated its electric motor brush manufacturing from Battersea.

A programme of development attracted other SMEs, but more and more the economy of Swansea became dominated by service industries. It boast a university with its own wafer fab for semiconductors.

Further reading:

• Swansea and its Region, W.G.V. Balchin ed. (Swansea: University College of Swansea, 1971)
• J.C. Carr and W. Taplin, History of the British Steel Industry (Oxford: Basil Blackwell, 1962)

Camborne and Redruth manufacturing history - Cornish Mining

 Mining in this central part of Cornwall had been going on long before the Christian era with miners from what would become northwest France. There is evidence of the use of Cornish tin on bronze found in the Mediterranean exported from St Michael's Mount. The image is of early mining in northwest Cornwall.

The eighteenth century saw an acceleration in mining with the coming of the industrial revolution.

'The spot we are at is the most disagreeable in the whole county. The face of the earth is broken up in ten thousand heaps of rubbish, and there is scarce a tree to be seen.'

So wrote Mrs Watt to Mrs Boulton in 1777 when her husband was supervising the installation of one of his steam engines to pump water from a mine that was becoming inoperable. Samuel Smiles wrote of this in his contemporary account of Boulton & Watt noting that the engineer faced technical challenges, but also stubborn resistance from the Cornish. I explored in my post on St Austell the issue of mines flooded with water.

Another challenge for the mines was that of transporting ore from the rock face to places where it could be smelted. Here Janet Thomas, in her book The Wheels Went Round - the Story of Camborne Town, brings in the name Trevithick. By 1803 he had designed a tram engine which was being used in Wales and was introduced to transport ore between Portreath and Poldice. Trevithick also provided machinery for lifting the ore to to the mouth of the mine.

The area between Redruth and Camborne had from early times concentrated on the mining of copper, and production increased as, in the eighteenth century, the industrial revolution got underway. The metal workers of Birmingham were demanding more and more copper and the mine owners were all too happy to oblige. As elsewhere in the revolution, the workers missed out on good fortune and suffered dreadful working conditions and poverty for their families. Mechanisation into the nineteenth century went a small way to improve their lot with better ventilation and dust suppression of which I write more below. The first part of the nineteenth century saw a boom in production and by mid century Cornwall was supplying three quarters of the copper used in the world and half of the tin. This was big business.

In Redruth, William Murdock worked at supervising the installation of Boulton & Watt steam engines. In the evenings he experimented with the use of gas emitted from coal. He discovered that it could produce a bright light and from that he devised a scheme whereby his house could be lit by this gas. This demonstration convinced his employers of the viability of the process and he was commissioned to install gas lighting in their Soho works in Birmingham.

In Camborne, it was the Holman brothers which established a business in 1839 with a foundry capable of repairing massive beam engines. There followed a dust suppressing drill delivering a water spray to the drill bit; this became known as the Cornish Rock Drill. In the late nineteenth century they were manufacturing beam engines and by the twentieth century added compressors, pumping and winding engines; electricity took over from steam power. In its heyday, they were employing 3,000 men and women in Camborne and taking on 100 apprentices each year. The Camborne School of Mines was founded in 1888.

Notwithstanding technical developments, the world was not moving in Cornwall's favour, with better mining prospects, not so much gold in California, but copper in South Australia and Lead in Illinois. This triggered emigration of miners and their families and ensured that Cornish accents were heard wherever mines were being sunk.

For Holmans, the spread of mining to other parts of the world very simply meant first exports and then the establishment of Holman plants overseas. In 1961 the company had 2,500 employees and seven years later, under the encouragement of the Industrial Reorganisation Corporation, merged with Broom & Wade of High Wycombe to become International Compressed Air, later CompAir with headquarters in Slough.

South Crofty mine is being redeveloped by Cornish Metals.

Further reading:

• Janet Thomas, The Wheels Went Round - the Story of Camborne Town (Redruth: Dyllansow Truran,1987)
• Samuel Smiles, Lives of Boulton & Watt (Stoud: Nonsuch Publishing, 2007 originally published 1865)
• https://cornishstory.com/2021/02/10/holman-echoes-of-an-age/

You can read more in Vehicles to Vaccines and in How Britain Shaped the Manufacturing World