My books on manufacturing

My books on manufacturing
My books on manufacturing history
Showing posts with label Compair. Show all posts
Showing posts with label Compair. Show all posts

Monday, August 11, 2025

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:

Saturday, March 1, 2025

Ipswich manufacturing history

 Ipswich was a major port in the time before Hull and Liverpool took up the strain of the industrial revolution. It was not, however, without industry, not least some shipbuilding. The east of England was wool country and both traded wool and manufactured from it.

Nearby Sutton Hoo revealed evidence of the Anglo Saxon world of which East Anglia was very much part with trading relationships with the Nordic national but also France and through to the Mediterranean and beyond.

The agricultural revolution was the turning point, especially in the latter part where farmers struggling to feed a hungry nation turned to mechanisation in their fields.

In Ipswich it was a man named Robert Ransome who was a Quaker and set up a foundry in an old malting in Ipswich in 1789. He was the son of Richard Ransome, a school master from Wells, and had served an apprenticeship with an iron monger in Norwich. It was a time when ideas were being explored for tools for the better use of land. The choice of Ispwich is interesting for the town had been suffering from the loss of the wool trade to other centres. Ipswich was, though, on the route taken by colliers and so had an ample supply of coal. Ransome's first major invention appeared in 1803 where he observed that molten iron coming into contact with a cold surface would quickly become very hard, something he adapted to the plough share making it in effect self sharpening. From this beginning he went on to develop a plough with separate interchangeable parts which gave it excellent adaptability for all kinds of land. The business prospered despite the ups and downs of the economy.

Robert took his two sons into partnership just as the agricultural depression of the early nineteenth century hit. Diversification was the order of the day and the partnership entered into a contract with the celebrated civil engineer William Cubit and extended their product range to cast bridge sections to replace Stokes bridge in Ipswich which had been destroyed. A further diversification with a much longer future for the company was grass cutting machinery.

In 1836 a young chemist, Charles May, joined the business and this accompanied a further major diversification into production for the railway boom and the work force grew to 1,000. Ipswich was now also linked by the railway to London and the north. The railway work was spilt into a new company, Ransome & Rapier, and the agricultural business continued with frequent diversifications not least into steam engines as Ransome & May. Charles May joined a London firm following the Great Exhibition at which they exhibited and the company became Ransome and Sims; Jeffries would follow later. The company developed a close relationship with the new agricultural regions of Russia and an export trade more generally. In the years up to the First World War the workforce seldom fell below 1,500.

The first half of the twentieth century saw the introduction of the internal combustion engine and the development of the grass cutting business. In the First World War the Stokes Mortar was invented by Sir Wilfred Scott-Stokes chairman of Ransome & Rapier and I write of this in Ordnance. Ransome Sims & Jefferies built aeroplanes and employed some 5,000 men and women. After the war RSJ switched its efforts to battery vehicles and trucks for factory use and fork lift trucks figured largely in its work in the Second World War. Ransome & Rapier diversified away from railways into cranes, water control gates and earth moving machinery. Grass cutting equipment is still produced under the Ransomes name.

Of course it wasn't just Ransomes. The Manganese Bronze & Brass Company built a foundry and extrusion plant in Ipswich producing high-duty brass and bronze alloys much for naval use.

Reavell & Company made compressors, one use of which was in conjunction with the engines made by Dr Diesel injecting fuel. Another use was in gas distribution and in experimental work with atomic energy. Reavells later became part of Compair of Slough.

E.R. & F. Turner manufactured portable steam engines and roller-mills for flour. Turners became part of Agricultural and General Engineers of which Bull Motors were also a part and which had moved its manufacturing to Ipswich. This comprised electric motors and generators, more specifically super-silent motors and battery powered motors for passenger vehicles. In the First World War, Turner’s expertise in rollers was put to good use in developing a lathe to manufacture shell cases. The same was used in the Second World War until American machine tools took over. Turners then focused on electric motors. With the advent of combine harvesters, Turners skills at seed cleaning came in. Turners acquired Christy Hunt of Scunthorpe and the enlarged company still manufactures in Ipswich under the name Christy Turner. The Bull Motors business eventually became part of Hawker Siddeley.

The chemical company Fisons exploited the development of super-phosphates as fertiliser from the invention by J.B. Lawes of Barking in 1839. Fisons as such only came into being a century later as the fragmented East Anglian fertiliser industry slowly gathered eventually focusing on a plant on Cliff Quay in Ipswich where it produced the sulphuric acid and superphosphate required for the fertiliser.

Cocksedge & Co was a company that combined construction (which continues to this day and here is a link) and mechanical engineering of which the most prodigious was production for two world wars. The company produced temporary bridges, Bailey Bridges and adapted tanks to carry massive bridge sections. In terms of tanks, they cast turrets weighing 3.5 tons and devised a method of carrying and laying temporary roadway for tanks following the invasion of Europe. They also carried out ship repairs. In peacetime that had produce heavy cutting machinery to process sugar beat.

Further reading:

  • The History of Engineering in Ipswich (Ipswich: The Ipswich Engineering Society)
  • D.R. Grace and D.C. Phillips, Ransomes of Ipswich A History of the firm and guide to its records (Institute of Agricultural History, 1975)
  • Carol and Michael Weaver, Ransomes A Bicentennial Celebration, 1989

Manufacturing places - the art of re-invention

My exploration of British manufacturing has been sector by sector and chronological. I am now beginning to join up the dots and explore thos...