My books on manufacturing

My books on manufacturing
My books on manufacturing history

Tuesday, July 1, 2025

Dartford and Thameside manufacturing history

 Dartford in the well-watered, sheltered valleys of the Darent and Cray invited occupation, certainly by the Romans and successive invaders. Over the centuries trades emerged and prospered. One of particular note was the making of paper from rags. John Spilman was granted a monopoly for the collection of rags for paper making. A number of paper mills followed including the Phoenix Mill of TH Saunders noted for the quality of its early machine made paper.

Armament production came to Dartford in the mid eighteenth century in the shape of a gun powder factory. This was succeeded by Vickers, Son and Maxim in the nineteenth century in Powder Mill Lane with an ammunition factory.

In 1889, Burroughs Wellcome took over a former mill for pharmaceutical manufacture and in 1914 built a new factory which was added to over the years reaching some 65 acres and over a million square feet of building. They had 2,800 employees in 1979.

A significant if lesser known manufacturer was John Hall a blacksmith who arrived in Dartford in 1785. By the time of his death in 1836 he had a iron works in Dartford, a gunpowder works in Faversham, a paper mill in Horton Kirby and a flour mill at Chislehurst. One of his apprentices was Bryan Donkin who with Hall built a works in Bermondsey to make tin cans for preserving food. I wrote of this in How Britain Shaped the Manufacturing World. The Hall iron works supplied many local industries: gas works, zinc mills, paper mills and cement works. Of greatest importance was their work on refrigeration. It was said that in the Second World War 37% of the nations storage capacity was cooled by Hall's machines.

In 1886 Halls had installed their first cold air cooling machine on a large cargo ship carrying perishable foodstuffs. At that time Britain was the world's leading importer of food from Australia, South America and elsewhere and so refrigeration was essential. Cold air was better than previous methods but a better solution was needed. In 1889 Halls added carbon dioxide in a two stage compressor. To achieve yet colder temperatures, Ammonia was used and a plant was installed in Grimsby to make ice for the trawler fleet. In 1959, the company merged with Thermotank of Glasgow which made patented cooling and ventilation devices. The merged company bought Vent-Axia of Crawley in 1959 and was itself bought by APV in 1976. It is now part of the Japanese Daikin Group and continues to manufacture in Dartford.

The south bank of the Thames with its reserves of chalk and mud turned out to be the ideal location for cement manufacture.

Lime had been used for millennia in the making of mortar to join stone and brick. The Romans built lime kilns to burn limestone and produce quicklime. Such kilns were to be found across Britain where limestone was to hand. In the seventeenth century it was found that quicklime spread on fields would aid the growth of crops by reducing the acidity of the soil. The demand for quicklime kept growing.

There is evidence that as early as 8,000 BC it had been found that the addition of small amounts of volcanic ash gave the lime the capacity to set under water. In England, John Smeaton, known as the father of civil engineering, building the Eddystone lighthouse discovered that the property of hardening whilst submerged in water was linked to the clay content of the cement. In 1824, a Leeds stonemason, Joseph Aspdin, took this a stage further and invented a method of making from limestone and clay a cement which he called Portland Cement given the similarity in colour between it and Portland stone. He patented his invention and his son William exploited it further setting up a manufacturing plant in Rotherhithe. Other plants followed along the banks of the Thames and Medway using local deposits of chalk and clay taken from the mud of the river banks.

It seems likely that Portland cement was used by Marc Brunel in the construction of the Thames Tunnel in 1828. The story is that Brunel had been using the cheaper Roman Cement patented by James Parker of Northfleet in 1796, but the tunnel collapsed. Tons of Portland Cement were poured in and sealed the tunnel which could then be completed.

Limestone was also used as a flux for the smelting of iron to remove the impurity of silica, which when heated combines with the lime to form slag which is then removed and used for road making.

The exact proportion of lime to clay was crucial and depended on the make up of the local deposits used. The mixing would be either using water or by grinding the dry rocks. In time, cement plants appeared across Britain exploiting local mineral deposits and the availability of coal to heat the mixture until it calcined. In 1845, Isaac Johnson, then manager of the Swanscombe Works close to Dartford, fired the mixture to a higher temperature (1400-1450C) until the mixture clinkered. This was then ground to a fine powder and is essentially the Portland cement we use today.

Cement making was a dirty process and the towns folk complained. Johnson though went ahead with larger works at Greenhithe. In time there were some thousand kilns along the banks of the Thames and Medway.

In 1900 the Associated Cement Manufacturers Company was formed bringing together some twenty four companies all but two on the Thames and Medway including two of the early plants Robin's and Swanscombe. This company became Blue Circle Cement and is now owned by the French Lafarge.

Further reading:

  • Geoff Porteus, The Book of Dartford (Buckingham: Barracuda Books 1979)

Erith manufacturing history

 Erith was not on Watling Street (unlike neighbouring Crayford) and so until the arrival of the railways it was restricted in industrial activity to that enabled by the Thames, so brick works and loam quarrying principally to provide ballast for ships.

The first manufacturing industry was the engineering factory of Easton, Amos and Anderson in 1864; the last named being also Director General of Ordnance Factories and I wrote about him in the context of the modernisation of the Royal Arsenal at Woolwich. The factory closed in 1904 but left well made pumping engines some of which were still working after the Second World War.

A significant early industrial newcomer was the Callender Bitumen, Telegraph and Waterproof Company in 1880. At this time electric cables were being run for telegraph and soon power transmission. A little further upstream at Woolwich, Siemens was much involved in the same area. The company became Callenders Cable and Construction Company and in 1945 merged with British Insulated and Helsby Cables itself a product of the British Insulated Wire Company which had been founded in Manchester in 1890 by Sebastian de Ferranti, Colonel Pilkington of St Helens and others. British Insulated Callender Cables or BICC (as the combined company became) and its predecessors can claim credit for much of the national grid. In 2000 BICC changed its name to that of its construction subsidiary Balfour Beatty. It had previously disposed of its cable interests.

In 1887, the Nordenfeldt Gun Company built a factory in Erith and a year later combined with Maxim at Crayford. The combined business was then bought by Vickers. The business was renamed Vickers, Sons & Maxim and manufactured many machine guns during the First World War including the heavy 'PomPom' which had been used in the Boer War. Production was moved to other Vickers factories in 1932.

Fraser and Chalmers were to be another Erith manufacturer. They had originated in the USA and had focused on the manufacture of mining machinery. They set up in Erith in 1891, but by 1903 severed all US connections and expanded their range of products into steam plants, milling machinery and general engineering. In 1918, the business was bought by GEC and its was repurposed into manufacturing turbines. In the mid twentieth century it employed 4,000 people in a site extending to thirty-four acres.

Turner's Asbestos Cement Company set up in 1912 to manufacture asbestos roofing material, guttering, piping and fireproof and thermal insulating material. The company was owned by Turner and Newall of Manchester. The subsequent discovery of the dangers of asbestos effectively ended the business.

Continuing with construction, Royal Doulton Potteries made salt glazed stoneware piping. British Plaster Board processed imported gypsum. The Hercules Powder Company and Borax Consolidated Ltd provided raw materials for glass enamel and pottery.

Further reading:

  • John A Pritchard, A History of Erith Pt III 1837-1894 ( London Borough of Bexley Libraries and Museums Department 1978)
  • John A Pritchard, A History of Erith Pt IV 1894-1965 ( London Borough of Bexley Libraries and Museums Department 1978)

Monday, June 30, 2025

Crayford manufacturing history

 The main route running through Crayford was Watling Street offering evidence of Roman occupation. It was also where Hiram Maxim built his first factory. In nearby Dartford Heath there is evidence of iron smelting using ores from the Weald.

An early industry was silk printing and in the nineteenth century David Evans won a reputation for the excellence of his product. The skill expanded into textile printing more generally. The Swaisland company was said to have made Crayford the 'Mecca of the printing industry in Britain'. The company was bought by G.P. & J. Baker which created iconic designs for their fabric printing. Their archive has been preserved in private hands and inspires some of today's fabric printers. In the nineteenth century this was big business employing massive steam driven machinery. The Calico Printers Ground became a well known place in Crayford where printing had grown out of the bleaching industry, itself the product of Hugenot weavers making their homes here.

Frederick Braby worked with sheet steel in the Euston Road in London and set up a works in Crayford in 1867 to take advantage of the transport facilitated by the Surrey Canal. The works lasted until 1964 latterly supplying the food industry.

Sir Hiram Maxim was also a Hugenot but came to Watling Street, Crayford in 1888 via Hatton Garden and America to which the family had fled. He would be best known for his machine gun, but William Carr also suggests that he took to the air in a steam powered aircraft. Nothing came of this. What did come was an amalgamation with the Nordenfeldt Gun Company which in 1887 had built a factory in nearby Erith. In 1888 Nordenfeldt and Maxim combined their businesses which results in Maxim-Nordenfeldt Gun and Ammunition Company close to St John's church in Erith. In 1897 Vickers acquired the Maxim factory and there developed the Vickers Maxim machine gun.

In the early 1900s the armament works were repurposed to manufacture Wolseley Siddeley motor cars. This came about because John Siddeley was looking for someone to put his all British 100 h.p. car on the market. To do this he joined with Wolseley, then run by Herbert Austin, and Vickers. Austin left to set up on his own and the motor business was moved to Birmingham.

Crayford closed until 1912 when Vickers reopened it for arms production. Crucially they designed a synchronising gear which enabled a machine gun to be fired through the revolving propellor of an aeroplane, also manufactured by Vickers in Erith. After the war, the Crayford factory assumed a key part of Vickers manufacturing capability and I write of this in Vehicles to Vaccines.

Of international significance, a Vickers Vimy bomber built at Crayford but modified at Weybridge made the first trans-Atlantic crossing with Alcock and Brown. The Vickers Vimy powered by a Rolls-Royce Eagle engine proved a success but then a decision was taken to focus aircraft production on Weybridge.

In the Second World War in Crayford, Vickers manufactured armaments including military fire control and aiming equipment and after the war diversified into petrol pumps and packing and bottling machinery.

Given its location much of Crayford's business derived from imports. This the Vitbe Flour Mill was in Crayford. A good deal of timber was imported and at Crayford a portion of this was made into a whole range of different plywoods by the Tucker Armour Plywood Company.

Dussek's Oil Refining and processing works, later bought by Burmah Castrol, had a range of products from which I infer a range of raw materials. Before the drilling for hydrocarbons, oil was derived from plants and seeds, from coal tar and from animal fats. Dusseks specifically used tar and, I infer from their production of putty, linseed oil. This oil is derived from flax and in the nineteenth century the seed was imported from Russia. There is evidence of its processing also in Maidstone. There was a large trade in palm oil from West Africa which was used in making margarine and soap. I wrote about this in the context of Lever Brothers and the United Africa Company in How Britain Shaped the Manufacturing World.

Further reading:

  • J.D. Scott, Vickers - A History (London: Weidenfeld and Nicolson, 1962)
  • William Carr, The Spot that is called Crayford (Crayford Urban District Council, 1951, 1965)

Sunday, June 29, 2025

Kingston upon Thames manufacturing history

Kingston was possibly the most important market town in Surrey. Like so many places, its history was built on the wool trade. In the fifteenth and sixteenth centuries it supplied London first with Surrey Whitewear pottery and then with Redwear. As London grew, Kingston supplied many of its needs using the Thames as the vital transport link. Turnpikes were built, but the Thames reigned supreme until the railways arrived in 1838. This first Kingston station was in Surbiton, but Kingston was becoming a centre for the growing residential areas of Surbiton, New Malden and Chessington.

Manufacturing came in earnest in the First World War, first with Thomas Sopwith manufacturing aircraft which would become iconic for the part they played in the war effort. It was all about the internal combustion engine. Racing driver, Kenelm Lee Guinness formed the KLG spark plug company to manufacture the version of the spark plug which he had invented. Bus and lorry manufacturer, Leyland, built their vehicles for the war effort.

Harry Hawker, who was Sopwith's chief test pilot, formed his own Hawker Aircraft Company after the war and it was agreed that the companies should be joined. Tragically he died in a flying accident in 1921 the year his company merged with Sopwith. Thomas Sopwith became chairman of the combined company which continued to develop aircraft in Kingston. In 1934 Hawker Siddeley was formed which drew together Hawker, Gloster of Cheltenham, Sir William Armstrong of Elswick, Newcastle and Armstrong Siddeley of Coventry.

In the Second World War, Hawkers manufactured their equally iconic Hurricane Fighter using also factory space at Langley near Slough. Leyland manufactured lorries and also tanks including Churchills, Centaurs and Comets. They built bombs at a rate of 400,000 a month. John Perrings made radio sets in a secret workshop above his furniture shop using employees seconded from the Hoover factory at Perrivale to teach his staff the necessary skills. Siebe Gorman in nearby Chessington made rubber suits for navy divers.

After the war Hawker Siddeley went on to produce further acclaimed aircraft not least the Harrier and it became part of the British Aircraft Corporation and then British Aerospace. The successor, BAE Systems, closed the Kingston factory in 1992. I write of the post war aircraft industry in Vehicles to Vaccines. The Hawk jet, produced by BAE Systems flown by the Red Arrows, was developed under Hawker ownership.

Decca Radar had a significant presence in Chessington and Tolworth and also in nearby Addlestone. The company emerged from the Decca Record Company in 1947 and moved to Tolworth in 1951. Three years later premises were taken in Chessington. Heavy radar for air traffic control and air defence was based in Tolworth. In the mid fifties, government informed the company that any further expansion had to be outside the immediate Surrey area and a site was taken on the Isle of Wight. Heavy radar was sold to Plessey in 1964. The remaining Surrey operations were focused on marine radar and this was bought by Racal in 1979. The legacy of Decca radar is now within BAE Systems.

Further reading:

Thursday, June 26, 2025

Weybridge and Brooklands manufacturing history

Brooklands Motor Racing Circuit was close to Weybridge and brought motor racing enthusiasts and manufacturers including the Itala Automobile Company. It was the first purpose built race track in the world and had banked curves, very much the place where enthusiasts of the internal combustion engine gathered whether on the track or in the air. Alliot Verdan Roe carried out his flight trials there as did Sopwith of Kingston which had a training school there.

In 1915, the Itala factory was taken by Vickers to manufacture aircraft. They began with the Bentley designed BE.2 but then the government decided on the Farnborough designed SE5a and production began with a Hispano-Souza engine. Some 1,000 were produce exceeding the number of aircraft produced by any of the National Aircraft Factories. Vickers were in the aircraft business.

In the interwar years, the Brooklands track became the venue for many races including the British Grand Prix and the British Racing Drivers Club 500 mile race. Drivers including Malcolm Campbell and John Cobb raced there.

Another arrival in the twenties was the Airscrew Company which manufactured propellors. Over the years the business developed to include propeller blades for variable pitch aircrews. An artificial wood was developed called Weyroc. The company diversified into all manner of fans.

During the Second World War, the Vickers Weybridge factory manufactured Wellesley and Wellington bombers. The airfield was also where the Hawker Hurricane was brought for testing from its Kingston factory.

The Vickers design team at Weybridge came up with one winner in particular in the post war world: the Viscount passenger aircraft which was flown by BEA and many other operators.

The Vickers research department was headed by Dr Barnes Wallis who had created the Dam Busters bomb. His team went on to design some of the early missiles.

Aircraft production came up with the Valiant as a stop gap before the V Bombers came into service and then the civil Vanguard and VC10 neither of which lived up to the success of the Viscount. The factory closed in 1986. I write much more about Vickers in How Britain Shaped the Manufacturing World.

Further reading:

J.D. Scott, Vickers - A History (London: Weidenfeld and Nicolson, 1962)

 

Saturday, June 21, 2025

Farnborough manufacturing history

The Factory, as the Royal Aircraft Factory was known to the early aircraft manufacturers, came to Farnborough as the Army School of Ballooning which had been formed at Woolwich during the Boer War and then moved to nearby Aldershot before coming home to Farnborough with the formation of the Army Balloon Factory.

In the early days its mission was to try to impose safety standards on the reckless adventurers who were the first to take to the air. When the Wright Brothers succeeded with powered flight the army turned its attention to the marriage of aircraft and the internal combustion engine and the Royal Aircraft Factory was born.

All this came just in time for the First World War and initially the use of aircraft for reconnaissance. The Factory came up with designs alongside the commercial manufacturers and, as I suggest in How Britain Shaped the Manufacturing World, played leapfrog with the Germans, and aeroplanes became ever more technically advanced. I write about this in my chapter on the First World War.

The interwar years presented something of a hiatus of aircraft design until re-armament began. The Factory was once again up with the pack in aircraft design.

After the Second World War, the British aircraft industry was vast but, unlike the Americans and Germans, relied too much on old technology. The Royal Aircraft Establishment as it had been renamed was tasked with the challenge of leading the drive to ever more advanced technology. We were at war, but it was a Cold War demanding a whole different approach.

In 1962 the Establishment employed 8,500 people including 1,500 scientists.

This remarkable team of people tackled a good number of knotty problems.

  • jet lift and the control of vertical takeoff aircraft, culminating in the Hawker Harrier
  • supersonic interception aircraft culminating in the English Electric Lightning
  • the V bombers
  • the enquiry into the Comet crashes to understand why it happened and how it could be avoided in future
  • Concorde and supersonic transport, employing the wind tunnels to full effect.

The site comprised a range of buildings:

  • Q121 24ft wind tunnel
  • R133 Transonic wind tunnel
  • R52 1916 wind tunnel building
  • R136 11.5 ft x 8.5ft wind tunnel
  • R178 Materials and chemistry building
  • R51 Forge and Foundry
  • Q120/Q146 Seaplane test tank
  • R173 Romney buildings
  • Q134 Weapons testing building
  • Q65 The fabric shop
  • Q170 Telephone exchange
  • Q153 Structural test building

The site was decommissioned in 1998 and had been redeveloped as Farnborough Business Park. However the legacy was preserved to an extent in the air tunnel buildings owned by the Farnborough Air Sciences Trust, a museum in the Balloon Factory named Trenchard House and a massive portable airship hangar. There is of course the annual Farnborough International Airshow held at the Farnborough International Exhibition and Conference Centre.

Further reading:

Adam Wilkinson, Save Farnborough: The Cradle of British Aviation (London: SAVE Britain's Heritage, 2001)

Bracknell manufacturing history

 A small village on the road to the west of England was how Bracknell was described in the mid nineteenth century. It then set about growing. Thomas Lawrence founded a brickworks producing twelve million bricks a year by the end of the nineteenth century, bricks that would find their way into buildings including Eton College, 10 Downing Street and Westminster Cathedral.

Its designation as a new town came in the late forties with work beginning in 1950. The plan was ambitious and provided for employment as well as homes and leisure. Work on the first factory for Fluidrive began in 1951 followed by Kent Bros. & Phillips. In 1961 the numbers employed in factories passed 6,000.

George Rowney & Co, founded in 1783, opened their factory in Bracknell moving from units in Chalk Farm and the Euston Road. Rowney became part of Morgan Crucible and set up their head office in Bracknell. They were later bought by Dale Board, another artist materials business, and still manufacture in the town. Rowney are one of the few companies at both the Great Exhibition of 1851 and the Festival of Britain a century later.

The American Sperry, with their artificial horizon equipment for aircraft, moved their whole UK establishment from Brentford in 1968. Sperry would remain the largest employer until the plant was closed under the ownership of BAE Systems.

Racal set up their first factory in the fifties bussing their workforce of one hundred daily from Isleworth until houses were completed. By 1981, Racal had a worldwide workforce of 18,000. Racal spun off Vodaphone which continued a presence in the town.

Expandite, a supplier to the construction industry, bought Secomastic in 1956 and manufactured alongside operating a contracting division. ICI's agricultural research centre was nearby at Jealott's Hill. Ferranti digital systems and aircraft design was based here.

Honeywell Control Systems, ICL (now Fujitsu), 3M, Dell, NetGear, Panasonic, Hewlett Packard Techologies and Micron Technologies semi-conductors are some of the companies with a presence in Bracknell making it a technological hub and part of the Thames Valley 'Silicon Valley'.

Further reading:

Henry and Judith Parris, Bracknell - The making of a New Town (Bracknell Development Corporation, 1981)

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...