Thomas Newcomen (; February 1664 – 5 August 1729) was an English inventor who created the atmospheric engine, the first practical fuel-burning engine in 1712. He was an ironmonger by trade and a

Baptist Baptists form a major branch of Protestantism distinguished by baptizing professing Christian believers only ( believer's baptism), and doing so by complete immersion. Baptist churches also generally subscribe to the doctrines of soul co ...

lay preacher by calling. He was born in Dartmouth, in

Devon Devon ( , historically known as Devonshire , ) is a ceremonial and non-metropolitan county in South West England. The most populous settlement in Devon is the city of Plymouth, followed by Devon's county town, the city of Exeter. Devon ...

, England, to a merchant family and baptised at St. Saviour's Church on 28 February 1664. In those days flooding in coal and tin mines was a major problem. Newcomen was soon engaged in trying to improve ways to pump out the water from such mines. His ironmonger's business specialised in designing, manufacturing and selling tools for the mining industry.

Religious life

Sketch of Newcomin house - Devonshire characters and strange events

Thomas Newcomen was a lay preacher and a teaching elder in the local

church. After 1710 he became the pastor of a local group of Baptists. His father had been one of a group who brought the well-known Puritan John Flavel to Dartmouth. Later one of Newcomen's business contacts in London, Edward Wallin, was another Baptist minister who had connections with the well-known Doctor John Gill of Horsleydown, Southwark. Newcomen's connection with the

church at Bromsgrove materially aided the spread of his steam engine, as the engineers Jonathan Hornblower Sr. and his son were involved in the same church.

Developing the atmospheric engine

Newcomen's great achievement was his steam engine, developed around 1712; combining the ideas of Thomas Savery and Denis Papin, he created a steam engine for the purpose of lifting water out of a tin mine. It is likely that Newcomen was already acquainted with Savery, whose forebears were merchants in south

. Savery also had a post with the Commissioners for Sick and Hurt Seamen, which took him to Dartmouth. Savery had devised a "fire engine", a kind of thermic syphon, in which steam was admitted to an empty container and then condensed. The vacuum thus created was used to suck water from the sump at the bottom of the mine. The "fire engine" was not very effective and could not work beyond a limited depth of around thirty feet. Newcomen replaced the receiving vessel (where the steam was condensed) with a cylinder containing a piston based on Papin's design. Instead of the vacuum drawing in water, it drew down the piston. This was used to work a beam engine, in which a large wooden beam rocked upon a central fulcrum. On the other side of the beam was a chain attached to a

pump A pump is a device that moves fluids ( liquids or gases), or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic energy. Pumps can be classified into three major groups according to the method they ...

at the base of the mine. As the steam cylinder was refilled with steam, readying it for the next power stroke, water was drawn into the pump cylinder and expelled into a pipe to the surface by the weight of the machinery. Newcomen and his partner John Calley built the first successful engine of this type at the Conygree Coalworks near

Dudley Dudley is a large market town and administrative centre in the county of West Midlands, England, southeast of Wolverhampton and northwest of Birmingham. Historically an exclave of Worcestershire, the town is the administrative centre of the ...

in the West Midlands. A working replica of this engine can be seen at the

Black Country Living Museum The Black Country Living Museum (formerly the Black Country Museum) is an open-air museum of rebuilt historic buildings in Dudley, West Midlands, England.Proprietors of the Invention for Raising Water by Fire'. Its secretary and treasurer was John Meres, clerk to the Society of Apothecaries in London. That society formed a company which had a monopoly on supplying medicines to the Navy providing a close link with Savery, whose will he witnessed. The Committee of the Proprietors also included Edward Wallin, a Baptist of Swedish descent; and pastor of a church at Maze Pond,

Southwark Southwark ( ) is a district of Central London situated on the south bank of the River Thames, forming the north-western part of the wider modern London Borough of Southwark. The district, which is the oldest part of South London, developed d ...

. Newcomen died at Wallin's house in 1729, and was buried at

Bunhill Fields Bunhill Fields is a former burial ground in central London, in the London Borough of Islington, just north of the City of London. What remains is about in extent and the bulk of the site is a public garden maintained by the City of London Cor ...

burial ground on the outskirts of the

City of London The City of London is a city, ceremonial county and local government district that contains the historic centre and constitutes, alongside Canary Wharf, the primary central business district (CBD) of London. It constituted most of London fr ...

; the exact site of his grave is unknown. By 1733 about 125 Newcomen engines, operating under Savery's patent (extended by statute so that it did not expire until 1733), had been installed by Newcomen and others in most of the important mining districts of Britain and on the Continent of Europe: draining coal mines in the

Black Country The Black Country is an area of the West Midlands county, England covering most of the Metropolitan Boroughs of Dudley, Sandwell and Walsall. Dudley and Tipton are generally considered to be the centre. It became industrialised during its r ...

, Warwickshire and near Newcastle upon Tyne; at tin and copper mines in Cornwall; and in lead mines in Flintshire and Derbyshire, amongst other places.

After Newcomen

The Newcomen engine held its place without material change for about 75 years, spreading gradually to more areas of the UK and mainland Europe. At first brass cylinders were used, but these were expensive and limited in size. New iron casting techniques pioneered by the Coalbrookdale Company in the 1720s allowed bigger cylinders to be used, up to about 6 feet (1.8 m) in diameter by the 1760s. Experience led to better construction and minor refinements in layout. Its mechanical details were much improved by John Smeaton, who built many large engines of this type in the early 1770s; his improvements were rapidly adopted. By 1775 about 600 Newcomen engines had been built, although many of these had worn out before then, and been abandoned or replaced. The Newcomen Engine was by no means an efficient machine, although it was probably as complicated as engineering and materials techniques of the early 18th century could support. Much heat was lost when condensing the steam, as this cooled the cylinder. This did not matter unduly at a colliery, where unsaleable small coal (slack) was available, but significantly increased the mining costs where coal was not readily available, as in Cornwall. Newcomen's engine was gradually replaced after 1775 in areas where coal was expensive (especially in Cornwall) by an improved design, invented by

James Watt James Watt (; 30 January 1736 (19 January 1736 OS) – 25 August 1819) was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine in 1776, which was fun ...

, in which the steam was condensed in a separate condenser. The Watt steam engine, aided by better engineering techniques including Wilkinson's boring machine, was much more fuel efficient, enabling Watt and his partner

Matthew Boulton Matthew Boulton (; 3 September 172817 August 1809) was an English manufacturer and business partner of Scottish engineer James Watt. In the final quarter of the 18th century, the partnership installed hundreds of Boulton & Watt steam engi ...

to collect substantial royalties based on the fuel saved. Watt subsequently made other improvements, including the double-acting engine, where both the up and down strokes were power strokes. These were especially suitable for driving textile mills, and many Watt engines were employed in these industries. At first attempts to drive machinery by Newcomen engines had mixed success, as the single power stroke produced a jerky motion, but use of flywheels and better engineering largely overcame these problems. By 1800, hundreds of non-Watt rotary engines had been built, especially in collieries and ironworks where irregular motion was not a problem but also in textile mills. Despite Watt's improvements, Common Engines (as they were then known) remained in use for a considerable time, and many more Newcomen engines than Watt ones were built even during the period of Watt's patent (up to 1800), as they were cheaper and less complicated. Of over 2,200 engines built in the 18th century, only about 450 were Watt engines. Elements of Watt's design, especially the Separate Condenser, were incorporated in many "pirate" engines. Even after 1800 Newcomen type engines continued to be built and condensers were added routinely to these. They were also commonly retro-fitted to existing Newcomen engines (the so-called "pickle-pot" condenser).

Surviving Newcomen engines

There are examples of Newcomen engines in the Science Museum, London, England and the Ford Museum,

Dearborn, Michigan Dearborn is a city in Wayne County in the U.S. state of Michigan. At the 2020 census, it had a population of 109,976. Dearborn is the seventh most-populated city in Michigan and is home to the largest Muslim population in the United States per ...

US, amongst other places. In 1964 the Newcomen Society of London arranged for a Newcomen engine at Hawkesbury Junction, Warwickshire to be transferred to Dartmouth, where it can be seen working using a hydraulic arrangement instead of the steam boiler. According to Dr. Cyril Boucher of the Newcomen Society, this Newcomen Memorial Engine dates from about 1725, with new valve gear and other parts added later. Perhaps the last Newcomen-style engine to be used commercially – and the last still remaining on its original site – is at the Elsecar Heritage Centre, near

Barnsley Barnsley () is a market town in South Yorkshire, England. As the main settlement of the Metropolitan Borough of Barnsley and the fourth largest settlement in South Yorkshire. In Barnsley, the population was 96,888 while the wider Borough has ...

South Yorkshire South Yorkshire is a ceremonial and metropolitan county in the Yorkshire and Humber Region of England. The county has four council areas which are the cities of Doncaster and Sheffield as well as the boroughs of Barnsley and Rotherham. In No ...

. It was restored to working condition between 2012 and 2015, the refurbished engine was unveiled by

Prince Edward, Earl of Wessex Prince Edward, Earl of Wessex and Forfar, (Edward Antony Richard Louis; born 10 March 1964) is a member of the British royal family. He is the youngest child of Queen Elizabeth II and Prince Philip, Duke of Edinburgh, and the youngest sib ...

, in May 2016. Another Newcomen engine that can be shown working is the modern replica engine at the Black Country Museum in Dudley, West Midlands. The Newcomen Memorial Engine at Dartmouth can be seen moving, but is worked by hydraulics.

Recognition

On 23 February 2012 the Royal Mail released a stamp featuring Newcomen's atmospheric steam engine as part its "Britons of Distinction" series.

References

External links

* * {{DEFAULTSORT:Newcomen, Thomas 1664 births 1729 deaths Burials at Bunhill Fields English Baptists History of mining People from Dartmouth, Devon