Samuel Clegg (2 March 1781 – 8 January 1861) was a British engineer, known mostly for his development of the
gas works process.
Biography

Clegg was born at
Manchester
Manchester () is a city and the metropolitan borough of Greater Manchester, England. It had an estimated population of in . Greater Manchester is the third-most populous metropolitan area in the United Kingdom, with a population of 2.92&nbs ...
on 2 March 1781, received a scientific education under the care of Dr. Dalton. He was then apprenticed to
Boulton and Watt
Boulton & Watt was an early British engineering and manufacturing firm in the business of designing and making marine and stationary steam engines. Founded in the English West Midlands around Birmingham in 1775 as a partnership between the Engl ...
, and at the
Soho Manufactory
The Soho Manufactory () was an early factory which pioneered mass production on the assembly line principle, in Soho, Birmingham, England, at the beginning of the Industrial Revolution. It operated from 1766–1848 and was demolished in 1853.
B ...
witnessed many of
William Murdoch
William Murdoch (sometimes spelled Murdock) (21 August 1754 – 15 November 1839) was a Scottish chemist, inventor, and mechanical engineer.
Murdoch was employed by the firm of Boulton & Watt and worked for them in Cornwall, as a steam engin ...
's earlier experiments in the use of
coal gas
Coal gas is a flammable gaseous fuel made from coal and supplied to the user via a piped distribution system. It is produced when coal is heated strongly in the absence of air. Town gas is a more general term referring to manufactured gaseous ...
. He profited so well by his residence there that he was soon engaged by Mr. Henry Lodge to adapt the
new lighting system to his cotton mills at
Sowerby Bridge, near
Halifax; and finding the necessity for some simpler method of purifying the gas, he invented the
lime purifiers. He installed
gas lighting
Gas lighting is the production of artificial light from combustion of a fuel gas such as methane, propane, butane, acetylene, ethylene, hydrogen, carbon monoxide, coal gas (town gas) or natural gas. The light is produced either directly by ...
at
Thomas Hinde's
worsted mill in
Dolphinholme,
Lancashire
Lancashire ( , ; abbreviated ''Lancs'') is a ceremonial county in North West England. It is bordered by Cumbria to the north, North Yorkshire and West Yorkshire to the east, Greater Manchester and Merseyside to the south, and the Irish Sea to ...
.
After removing to
London
London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
, he lighted in 1813 with gas the establishment of Mr. Rudolph Ackermann, printseller, 101 Strand. Here his success was so pronounced that it brought him prominently forward, and in the following year he became the engineer of the Chartered Gas Company. He made many unsuccessful attempts to construct a dry meter which would register satisfactorily; but in 1815 and again in 1818 he patented a water meter, — the basis of all the subsequent improvements in the method of measuring gas.
For some years he was actively engaged in the construction of gasworks, and in advising on the formation of new gas companies; but then joined an engineering establishment at
Liverpool
Liverpool is a port City status in the United Kingdom, city and metropolitan borough in Merseyside, England. It is situated on the eastern side of the River Mersey, Mersey Estuary, near the Irish Sea, north-west of London. With a population ...
, in which he lost everything he possessed, and had to start he career again.
He was afterwards employed by the
Portuguese government
Portuguese may refer to:
* anything of, from, or related to the country and nation of Portugal
** Portuguese cuisine, traditional foods
** Portuguese language, a Romance language
*** Portuguese dialects, variants of the Portuguese language
** Portu ...
as an engineer, and in that capacity reconstructed the mint at
Lisbon
Lisbon ( ; ) is the capital and largest city of Portugal, with an estimated population of 567,131, as of 2023, within its administrative limits and 3,028,000 within the Lisbon Metropolitan Area, metropolis, as of 2025. Lisbon is mainlan ...
, and executed several other public works. On his return to England railway works engaged his attention, but unfortunately he became involved with the
atmospheric system of propulsion with the
Samuda Brothers. The failure of their system as a practicable plan of locomotion was a great blow to him, and he never after took any very active part in public affairs.
He was appointed by the government one of the surveying officers for conducting preliminary inquiries on applications for new gas bills, and he occupied his spare time in contributing to the elaborate treatise on manufacture of coal gas published by
his son Samuel in 1850. He became a member of the Institution of Civil Engineers in 1829, and took a prominent part in the discussions at its meetings.
He died at Fairfield House,
Adelaide Road
Adelaide Road is a street in London running east to west between Chalk Farm and Swiss Cottage. Located in the London Borough of Camden it is part of the longer B509 route which continues as Belsize Road through South Hampstead. The Belsize P ...
,
Haverstock Hill,
Middlesex
Middlesex (; abbreviation: Middx) is a Historic counties of England, former county in South East England, now mainly within Greater London. Its boundaries largely followed three rivers: the River Thames, Thames in the south, the River Lea, Le ...
on 8 January 1861 and was buried on the western side of
Highgate Cemetery
Highgate Cemetery is a place of burial in North London, England, designed by architect Stephen Geary. There are approximately 170,000 people buried in around 53,000 graves across the West and East sides. Highgate Cemetery is notable both for so ...
.
References
*
{{DEFAULTSORT:Clegg, Samuel
English civil engineers
Engineers from Manchester
1781 births
1861 deaths
Burials at Highgate Cemetery
People from Birmingham, West Midlands
Institution of Civil Engineers
19th-century English engineers