Peter Ewart (14 May 1767 – 15 September 1842) was a British

engineer Engineers, as practitioners of engineering, are professionals who invent, design, analyze, build and test machines, complex systems, structures, gadgets and materials to fulfill functional objectives and requirements while considering the l ...

who was influential in developing the technologies of

turbine A turbine ( or ) (from the Greek , ''tyrbē'', or Latin ''turbo'', meaning vortex) is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating e ...

s and theories of

thermodynamics Thermodynamics is a branch of physics that deals with heat, work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation. The behavior of these quantities is governed by the four laws of the ...

Biography

He was son of the

Church of Scotland The Church of Scotland ( sco, The Kirk o Scotland; gd, Eaglais na h-Alba) is the national church in Scotland. The Church of Scotland was principally shaped by John Knox, in the Scottish Reformation, Reformation of 1560, when it split from t ...

minister of

Troqueer Troqueer is a former village and a parish in the historic county of Kirkcudbrightshire in Dumfries and Galloway on the west side of the River Nith. The eastern-side was merged with Dumfries to the east in 1929, and today eastern Troqueer is a sub ...

near

Dumfries Dumfries ( ; sco, Dumfries; from gd, Dùn Phris ) is a market town and former royal burgh within the Dumfries and Galloway council area of Scotland. It is located near the mouth of the River Nith into the Solway Firth about by road from the ...

, and was one of eleven children. His brother

Joseph Ewart Joseph Ewart FRSE (30 April 1759 – 27 January 1792) was a Scottish diplomat, mainly based in Berlin in Prussia (now Germany) . Early life Ewart was born on 30 April 1759, the eldest son of Mary (née Corrie) and Rev. John Ewart, the minister o ...

became British ambassador to Prussia; John, a doctor, became Chief Inspector of East India Company hospitals in India; and William, father of William Ewart, was business partner of Sir John Gladstone, father of

William Ewart Gladstone William Ewart Gladstone ( ; 29 December 1809 – 19 May 1898) was a British statesman and Liberal politician. In a career lasting over 60 years, he served for 12 years as Prime Minister of the United Kingdom, spread over four non-conse ...

, whose godfather he was and whom he was named after. Following graduation from the

University of Edinburgh The University of Edinburgh ( sco, University o Edinburgh, gd, Oilthigh Dhùn Èideann; abbreviated as ''Edin.'' in post-nominals) is a public research university based in Edinburgh, Scotland. Granted a royal charter by King James VI in 15 ...

, he was apprenticed to

millwright A millwright is a craftsperson or skilled tradesperson who installs, dismantles, maintains, repairs, reassembles, and moves machinery in factories, power plants, and construction sites. The term ''millwright'' (also known as ''industrial mecha ...

John Rennie. His work with

water wheel A water wheel is a machine for converting the energy of flowing or falling water into useful forms of power, often in a watermill. A water wheel consists of a wheel (usually constructed from wood or metal), with a number of blades or buckets ...

s led him to work with

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 engine ...

and

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 ...

for whom by 1790 he was agent in

Manchester Manchester () is a city in Greater Manchester, England. It had a population of 552,000 in 2021. It is bordered by the Cheshire Plain to the south, the Pennines to the north and east, and the neighbouring city of Salford to the west. The t ...

. At the same time as acting as agent he was also trading on his own account as a

, enabling him to provide the complementary shafts, gears and other necessities to harness the power of the Boulton & Watt steam engines. In 1792, frustrated in administering the immature and, as yet, unreliable machinery, he left Boulton and Watt to work in

partnership A partnership is an arrangement where parties, known as business partners, agree to cooperate to advance their mutual interests. The partners in a partnership may be individuals, businesses, interest-based organizations, schools, governments o ...

with

Samuel Oldknow Samuel Oldknow (1756–1828) was an English cotton manufacturer. Samuel Oldknow Jnr, the eldest son of Samuel Oldknow Sr and Margery Foster, was born 5 October 1756 in Anderton, near Chorley, Lancashire, and died 18 September 1828 at Mellor ...

in a

cotton Cotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus ''Gossypium'' in the mallow family Malvaceae. The fiber is almost pure cellulose, and can contain minor perce ...

bleaching Bleach is the generic name for any chemical product that is used industrially or domestically to remove color (whitening) from a fabric or fiber or to clean or to remove stains in a process called bleaching. It often refers specifically, to ...

and

calico Calico (; in British usage since 1505) is a heavy plain-woven textile made from unbleached, and often not fully processed, cotton. It may also contain unseparated husk parts. The fabric is far coarser than muslin, but less coarse and thick than ...

printing Printing is a process for mass reproducing text and images using a master form or template. The earliest non-paper products involving printing include cylinder seals and objects such as the Cyrus Cylinder and the Cylinders of Nabonidus. The ea ...

venture. He anticipated this being a profitable concern but the partnership was dissolved within a year and he returned to engineering. In 1798 he went into partnership with

Samuel Greg Samuel Greg (26 March 1758 – 4 June 1834) was an Irish-born industrialist and entrepreneur of the early Industrial Revolution and a pioneer of the factory system. He built Quarry Bank Mill, which at his retirement was the largest textile mil ...

, installing an innovative water wheel at Greg's

Quarry Bank Mill Quarry Bank Mill (also known as Styal Mill) in Styal, Cheshire, England, is one of the best preserved textile factories of the Industrial Revolution. Built in 1784, the cotton mill is recorded in the National Heritage List for England as a ...

on the

River Bollin The River Bollin is a major tributary of the River Mersey in the north-west of England. It rises in Macclesfield Forest at the western end of the Peak District, and can be seen in spring form, from the Buxton to Macclesfield road. The stream t ...

Cheshire Cheshire ( ) is a ceremonial and historic county in North West England, bordered by Wales to the west, Merseyside and Greater Manchester to the north, Derbyshire to the east, and Staffordshire and Shropshire to the south. Cheshire's county t ...

. As a standby, he installed a

Watt steam engine The Watt steam engine design became synonymous with steam engines, and it was many years before significantly new designs began to replace the basic Watt design. The first steam engines, introduced by Thomas Newcomen in 1712, were of the "at ...

. By 1811, Ewart had abandoned the venture with Greg to concentrate on his own manufacturing business but also his scientific work. He became, along with

John Dalton John Dalton (; 5 or 6 September 1766 – 27 July 1844) was an English chemist, physicist and meteorologist. He is best known for introducing the atomic theory into chemistry, and for his research into colour blindness, which he had. Colour b ...

, a vice-president of the

Manchester Literary and Philosophical Society The Manchester Literary and Philosophical Society, popularly known as the Lit. & Phil., is one of the oldest learned societies in the United Kingdom and second oldest provincial learned society (after the Spalding Gentlemen's Society). Promine ...

and became active in the contemporary controversies about

heat In thermodynamics, heat is defined as the form of energy crossing the boundary of a thermodynamic system by virtue of a temperature difference across the boundary. A thermodynamic system does not ''contain'' heat. Nevertheless, the term is al ...

work Work may refer to: * Work (human activity), intentional activity people perform to support themselves, others, or the community ** Manual labour, physical work done by humans ** House work, housework, or homemaking ** Working animal, an animal tr ...

and

energy In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat a ...

. Motivated by a paper of

John Playfair John Playfair FRSE, FRS (10 March 1748 – 20 July 1819) was a Church of Scotland minister, remembered as a scientist and mathematician, and a professor of natural philosophy at the University of Edinburgh. He is best known for his book ''Illu ...

and encouraged by Dalton, in 1813 he published "On the measure of moving force" in which he defended the nascent ideas of the

conservation of energy In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be ''conserved'' over time. This law, first proposed and tested by Émilie du Châtelet, means th ...

championed by

John Smeaton John Smeaton (8 June 1724 – 28 October 1792) was a British civil engineer responsible for the design of bridges, canals, harbours and lighthouses. He was also a capable mechanical engineer and an eminent physicist. Smeaton was the fir ...

. The paper was strongly to influence Dalton's pupil

James Prescott Joule James Prescott Joule (; 24 December 1818 11 October 1889) was an English physicist, mathematician and brewer, born in Salford, Lancashire. Joule studied the nature of heat, and discovered its relationship to mechanical work (see energy). Th ...

. A vocal advocate of the application of scientific knowledge in engineering, he was one of the founders of the

Manchester Mechanics' Institute The Mechanics' Institute, 103 Princess Street, Manchester, is notable as the building in which three significant British institutions were founded: the Trades Union Congress (TUC), the Co-operative Insurance Society (CIS) and the University of ...

. Ewart took up the post of Chief Engineer and Chief Inspector of Machinery with the

Admiralty Admiralty most often refers to: *Admiralty, Hong Kong *Admiralty (United Kingdom), military department in command of the Royal Navy from 1707 to 1964 *The rank of admiral *Admiralty law Admiralty can also refer to: Buildings * Admiralty, Traf ...

in 1835 and died on 15 September 1842 at

Woolwich Dockyard Woolwich Dockyard (formally H.M. Dockyard, Woolwich, also known as The King's Yard, Woolwich) was an English Royal Navy Dockyard, naval dockyard along the river Thames at Woolwich in north-west Kent, where many ships were built from the early 1 ...

when a chain snapped as he was supervising the removal of a boiler.

References

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* * * * * * {{DEFAULTSORT:Ewart, Peter 1767 births 1842 deaths Scottish engineers History of Greater Manchester Industrial accident deaths Accidental deaths in London Alumni of the University of Edinburgh People from Dumfries and Galloway

Biography

See also

References

Citations

Sources