R. E. B. Crompton
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Rookes Evelyn Bell Crompton, CB, FRS (31 May 1845 – 15 February 1940) was a British
electrical engineer Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the l ...
,
industrialist A business magnate, also known as a tycoon, is a person who has achieved immense wealth through the ownership of multiple lines of enterprise. The term characteristically refers to a powerful entrepreneur or investor who controls, through perso ...
and
inventor An invention is a unique or novel device, method, composition, idea or process. An invention may be an improvement upon a machine, product, or process for increasing efficiency or lowering cost. It may also be an entirely new concept. If an ...
. He was a pioneer of
electric lighting An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic, which secures the lamp in the soc ...
and public electricity supply systems. The company he formed, Crompton & Co., was one of the world's first large-scale manufacturers of electrical equipment. He was also an early campaigner for an
international standard international standard is a technical standard developed by one or more international standards organizations. International standards are available for consideration and use worldwide. The most prominent such organization is the International Or ...
for electrical systems. He was involved with both the practical and academic sides of his discipline, being a founder member of the
International Electrotechnical Commission The International Electrotechnical Commission (IEC; in French: ''Commission électrotechnique internationale'') is an international standards organization that prepares and publishes international standards for all electrical, electronic and r ...
and twice president of the Institution of Electrical Engineers. He was a fellow of the
Royal Society The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. The society fulfils a number of roles: promoting science and its benefits, re ...
and a founder member of the Royal Automobile Club.


Early life

Evelyn Crompton was born at Sion Hill, near Thirsk,
Yorkshire Yorkshire ( ; abbreviated Yorks), formally known as the County of York, is a Historic counties of England, historic county in northern England and by far the largest in the United Kingdom. Because of its large area in comparison with other Eng ...
, one of five children. From an early age he was interested in machines and engineering. His autobiography tells how a trip to the
Great Exhibition The Great Exhibition of the Works of Industry of All Nations, also known as the Great Exhibition or the Crystal Palace Exhibition (in reference to the temporary The Crystal Palace, structure in which it was held), was an International Exhib ...
aged 6 had a profound impact on him: His schooling started at Sharow, near Ripon in Yorkshire, along with 19 other boys, aged between 7 and 15. In 1856 he went to school at Elstree, and then on to
Harrow Harrow may refer to: Places * Harrow, Victoria, Australia * Harrow, Ontario, Canada * The Harrow, County Wexford, a village in Ireland * London Borough of Harrow, England ** Harrow, London, a town in London ** Harrow (UK Parliament constituency) ...
(1858–60).


Early life and education

Crompton's education was interrupted by the outbreak of the
Crimean War The Crimean War, , was fought from October 1853 to February 1856 between Russia and an ultimately victorious alliance of the Ottoman Empire, France, the United Kingdom and Piedmont-Sardinia. Geopolitical causes of the war included the de ...
in 1854 and he was keen to see action, despite his young age. In mid-1856, after the conclusion of the war, he travelled to the Crimea on HMS ''Dragon'' and visited his brother in what had been the front line. Thereafter, he was awarded British Crimean War Medal and Sebastopol Clasp. After the Crimea, Crompton returned to Britain and went to
Harrow School (The Faithful Dispensation of the Gifts of God) , established = (Royal Charter) , closed = , type = Public schoolIndependent schoolBoarding school , religion = Church of E ...
. He eschewed the school's highly classical education, decided to study extra
mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
. He built his own
static electricity Static electricity is an imbalance of electric charges within or on the surface of a material or between materials. The charge remains until it is able to move away by means of an electric current or electrical discharge. Static electricity is na ...
generator and performed experiments with
Leyden Jars A Leyden jar (or Leiden jar, or archaically, sometimes Kleistian jar) is an electrical component that stores a high-voltage electric charge (from an external source) between electrical conductors on the inside and outside of a glass jar. It typi ...
. During a summer holiday, he designed and built a road-going steam tractor called ''Bluebell''. From Harrow Crompton obtained a placement at the Doncaster Works of the Great Northern Railway where he received theoretical education and practical experience in engineering. However Crompton still favoured the military life and in 1864 joined the
British Army The British Army is the principal land warfare force of the United Kingdom, a part of the British Armed Forces along with the Royal Navy and the Royal Air Force. , the British Army comprises 79,380 regular full-time personnel, 4,090 Gurk ...
and served in the
Rifle Brigade The Rifle Brigade (The Prince Consort's Own) was an infantry rifle regiment of the British Army formed in January 1800 as the "Experimental Corps of Riflemen" to provide sharpshooters, scouts, and skirmishers. They were soon renamed the "Rifle ...
in India. Whilst there, he witnessed the work of the
Royal Engineers The Corps of Royal Engineers, usually called the Royal Engineers (RE), and commonly known as the ''Sappers'', is a corps of the British Army. It provides military engineering and other technical support to the British Armed Forces and is heade ...
building narrow gauge railways and developed a deep interest in steam traction. He had ''Bluebell'' shipped to him from Britain and convinced his superiors to adopt traction engines and steam lorries for transporting cargo instead of bullock-drawn carts. He designed some of the military steam wagons himself.


Crompton & Co.

Crompton returned from India in 1875 and decided to pursue his interest in
engineering Engineering is the use of scientific method, scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of engineering encompasses a broad rang ...
. He became a
partner Partner, Partners, The Partner, or, The Partners may refer to: Books * ''The Partner'' (Grisham novel), by John Grisham, 1997 * ''The Partner'' (Jenaro Prieto novel), 1928 * ''The Partners'' (book), a 1983 book by James B. Stewart * ''Partner'' (m ...
and
manager Management (or managing) is the administration of an organization, whether it is a business, a nonprofit organization, or a government body. It is the art and science of managing resources of the business. Management includes the activities o ...
at T.H.P. Dennis & Co., an engineering company building agricultural mills and heating plant in
Chelmsford Chelmsford () is a city in the City of Chelmsford district in the county of Essex, England. It is the county town of Essex and one of three cities in the county, along with Southend-on-Sea and Colchester. It is located north-east of London a ...
. In this capacity, and as a family favour, he designed a new mechanical
foundry A foundry is a factory that produces metal castings. Metals are cast into shapes by melting them into a liquid, pouring the metal into a mold, and removing the mold material after the metal has solidified as it cools. The most common metals pr ...
for an iron and steel business owned by his brother. To maximise efficiency, the mill was to run day and night, requiring the best possible lighting. Crompton designed and oversaw the installation of an
arc lamp An arc lamp or arc light is a lamp that produces light by an electric arc (also called a voltaic arc). The carbon arc light, which consists of an arc between carbon electrodes in air, invented by Humphry Davy in the first decade of the 1800s, ...
system. He even designed his own improvements to the dynamo built by Emil Bürgin in
Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...
. Crompton became convinced of the future of electric lighting, and at the same time saw several faults in the French-developed arc lamps then in use. He developed his own design which gave a much brighter and steadier light than existing types. His faith in his design was such that he bought out T.H.P. Dennis and in 1878 Crompton & Co. was formed to manufacture, sell and install Crompton's lamp. His reputation quickly spread, to the extent that when Joseph Swan was developing his
incandescent light bulb An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated until it glows. The filament is enclosed in a glass bulb with a vacuum or inert gas to protect the filament from oxida ...
, he consulted Crompton over its design. Soon Crompton was building Swan's light bulb under license and the company dominated the British lighting market. By 1881, the company's range had included to cover complete electrical systems. Crompton designed and manufactured dynamos, switchgear,
circuit breakers A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by an overcurrent or short circuit. Its basic function is to interrupt current flow to protect equipment and to prevent the risk ...
, motors and electric meters, as well as lamps. Crompton gave demonstrations of his lamps at highly public events such as the Henley Regatta and at the
Alexandra Palace Alexandra Palace is a Grade II listed entertainment and sports venue in London, situated between Wood Green and Muswell Hill in the London Borough of Haringey. It is built on the site of Tottenham Wood and the later Tottenham Wood Farm. Origi ...
. He installed lights at
Windsor Castle Windsor Castle is a royal residence at Windsor in the English county of Berkshire. It is strongly associated with the English and succeeding British royal family, and embodies almost a millennium of architectural history. The original cast ...
and
King's Cross station King's Cross railway station, also known as London King's Cross, is a passenger railway terminus in the London Borough of Camden, on the edge of Central London. It is in the London station group, one of the busiest stations in the United King ...
as well numerous
country house An English country house is a large house or mansion in the English countryside. Such houses were often owned by individuals who also owned a town house. This allowed them to spend time in the country and in the city—hence, for these peopl ...
s, factories,
tram A tram (called a streetcar or trolley in North America) is a rail vehicle that travels on tramway tracks on public urban streets; some include segments on segregated right-of-way. The tramlines or networks operated as public transport are ...
networks, railway yards and docks. Foreign jobs included lighting the Vienna State Opera, which became the world's first theatre to be lit by electricity. In 1887 Crompton designed and installed one of the world's first public electricity supplies using a centralised
power station A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many p ...
. Installed on the
Kensington Gardens Kensington Gardens, once the private gardens of Kensington Palace, are among the Royal Parks of London. The gardens are shared by the City of Westminster and the Royal Borough of Kensington and Chelsea and sit immediately to the west of Hyde P ...
estate in
London London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a majo ...
, 7
steam engine A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be trans ...
s coupled to Crompton dynamos supplied power from a cavern. The success of this installation led to numerous orders for similar systems worldwide. Crompton supplied equipment throughout the
British Empire The British Empire was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading posts esta ...
, with power stations being built as far aways as Australia, which received its first Crompton lighting plant in 1887. In 1899, the company installed a generator set in a
Calcutta Kolkata (, or , ; also known as Calcutta , List of renamed places in India#West Bengal, the official name until 2001) is the Capital city, capital of the Indian States and union territories of India, state of West Bengal, on the eastern ba ...
hotel, producing India's first ever electricity supply. India became a significant market for Crompton & Co., and he appointed an agent in Calcutta to manage his business in the subcontinent. Similar subsidiaries were later founded worldwide. Crompton kept a very 'hands on' approach to his business. In 1895 a fire broke out in a power station in London that his company had installed and that was close to his own home. He rushed to the scene and helped workers to try to contain the blaze and prevent it reaching some tanks of
fuel oil Fuel oil is any of various fractions obtained from the distillation of petroleum (crude oil). Such oils include distillates (the lighter fractions) and residues (the heavier fractions). Fuel oils include heavy fuel oil, marine fuel oil (MFO), bun ...
. As the fire continued to spread, he went back to his home and helped man-handle firehoses through his front door, across his floors and out the back windows, which faced out to the rear of the power station. He continued to help fight the fire, despite receiving several
electric shock Electrical injury is a physiological reaction caused by electric current passing through the body. The injury depends on the density of the current, tissue resistance and duration of contact. Very small currents may be imperceptible or produce ...
s and mild burns from a flooded
battery Battery most often refers to: * Electric battery, a device that provides electrical power * Battery (crime), a crime involving unlawful physical contact Battery may also refer to: Energy source *Automotive battery, a device to provide power t ...
bank. At the site of the former Crompton Parkinson Works (later Marconi and
E2V Teledyne e2v (previously known as e2v) is a manufacturer with its headquarters in England, that designs, develops and manufactures systems and components in healthcare, life sciences, space, transportation, defence and security and industrial mar ...
) at Writtle Road in Chelmsford, the Crompton Building still exists, although it is now used an NHS surgery, pharmacist & residential flats. The housing development that is located on part of the former works has roads named Rookes Crescent, Evelyn Place and Crompton Street. There are numerous stone plaques in the buildings which record the achievements of Crompton and others. Nearby, there is also road named Cromar Way, which derives its name from a contraction of CROmpton and MARconi.


Volunteers and the Boer War

When the Electrical Engineers, Royal Engineers (Volunteers) was formed in 1897, Crompton became Commanding Officer with the rank of
major Major (commandant in certain jurisdictions) is a military rank of commissioned officer status, with corresponding ranks existing in many military forces throughout the world. When used unhyphenated and in conjunction with no other indicators ...
. He designed a range of
searchlights A searchlight (or spotlight) is an apparatus that combines an extremely bright source (traditionally a carbon arc lamp) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a particular direc ...
for military use, ranging from small tripod-mounted types to large fixed designs using his own
arc lamp An arc lamp or arc light is a lamp that produces light by an electric arc (also called a voltaic arc). The carbon arc light, which consists of an arc between carbon electrodes in air, invented by Humphry Davy in the first decade of the 1800s, ...
design. Early in the
Second Boer War The Second Boer War ( af, Tweede Vryheidsoorlog, , 11 October 189931 May 1902), also known as the Boer War, the Anglo–Boer War, or the South African War, was a conflict fought between the British Empire and the two Boer Republics (the Sout ...
, Colonel Robert Baden-Powell improvised searchlights to deter night attacks during the Siege of Mafeking. Soon afterward Crompton led a detachment of the Electrical Engineers Volunteers to South Africa where they operated electric searchlights, the first use of such equipment by the
Royal Engineers The Corps of Royal Engineers, usually called the Royal Engineers (RE), and commonly known as the ''Sappers'', is a corps of the British Army. It provides military engineering and other technical support to the British Armed Forces and is heade ...
on campaign. The detachment served from April to October 1900 in the
Transvaal Transvaal is a historical geographic term associated with land north of (''i.e.'', beyond) the Vaal River in South Africa. A number of states and administrative divisions have carried the name Transvaal. * South African Republic (1856–1902; af, ...
and
Orange Free State The Orange Free State ( nl, Oranje Vrijstaat; af, Oranje-Vrystaat;) was an independent Boer sovereign republic under British suzerainty in Southern Africa during the second half of the 19th century, which ceased to exist after it was defeat ...
. Crompton was promoted to
lieutenant-colonel Lieutenant colonel ( , ) is a rank of commissioned officers in the armies, most marine forces and some air forces of the world, above a major and below a colonel. Several police forces in the United States use the rank of lieutenant colonel. ...
,
mentioned in dispatches To be mentioned in dispatches (or despatches, MiD) describes a member of the armed forces whose name appears in an official report written by a superior officer and sent to the high command, in which their gallant or meritorious action in the face ...
, made a Companion of the Bath for his efforts and was later given the honorary rank of
colonel Colonel (abbreviated as Col., Col or COL) is a senior military officer rank used in many countries. It is also used in some police forces and paramilitary organizations. In the 17th, 18th and 19th centuries, a colonel was typically in charge of ...
. Crompton continued as CO of the London Division of the Electrical Engineers Volunteers, and its successor the
London Electrical Engineers The London Electrical Engineers was a Volunteer unit of the British Army's Royal Engineers founded in 1897. It pioneered the use of searchlights (S/Ls) for port defence before World War I and for anti-aircraft (AA) defence during the war. In the i ...
, RE. He retired from the
Territorial Force The Territorial Force was a part-time volunteer component of the British Army, created in 1908 to augment British land forces without resorting to conscription. The new organisation consolidated the 19th-century Volunteer Force and yeomanry i ...
in 1910, but was appointed Honorary Colonel of the London Electrical Engineers in 1911, and of its successor, 27th (London Electrical Engineers) Battalion, RE, in 1923.''Monthly Army List''


Standardisation

After the war, Crompton became concerned by the large range of different standards and systems used by electrical engineering companies and scientists. Many companies had entered the market in the 1890s and all chose their own settings for
volt The volt (symbol: V) is the unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI). It is named after the Italian physicist Alessandro Volta (1745–1827). Defi ...
age,
frequency Frequency is the number of occurrences of a repeating event per unit of time. It is also occasionally referred to as ''temporal frequency'' for clarity, and is distinct from ''angular frequency''. Frequency is measured in hertz (Hz) which is eq ...
, current and even the symbols used on circuit diagrams. Adjacent buildings would have totally incompatible electrical systems simply because they had been fitted out by different companies. Crompton could see the lack of efficiency in this system and began to consider proposals for an international standard for electric engineering. In 1904, Crompton represented Britain at the
Louisiana Purchase Exposition The Louisiana Purchase Exposition, informally known as the St. Louis World's Fair, was an World's fair, international exposition held in St. Louis, Missouri, United States, from April 30 to December 1, 1904. Local, state, and federal funds tota ...
in Saint Louis as part of a delegation by the Institute of Electrical Engineers. He presented a paper on standardisation, which was so well received that he was asked to look into the formation of a commission to oversee the process. He said he saw "''great difficulty''" in the project, but began work. By 1906 his work was complete and he drew up a permanent constitution for the
International Electrotechnical Commission The International Electrotechnical Commission (IEC; in French: ''Commission électrotechnique internationale'') is an international standards organization that prepares and publishes international standards for all electrical, electronic and r ...
(IEC), which held its first meeting that year in London, with representatives from 14 countries. The IEC's work was interrupted by the Great War. During this conflict, Crompton was asked by the Landships Committee to submit designs for a 'Land Ship' that could cross enemy trenches and
barbed wire A close-up view of a barbed wire Roll of modern agricultural barbed wire Barbed wire, also known as barb wire, is a type of steel fencing wire constructed with sharp edges or points arranged at intervals along the strands. Its primary use is t ...
whilst protecting its occupants from bullets. His design formed the basis of the first practical
tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful engin ...
s. The Commission reconvened in 1919 in
Geneva Geneva ( ; french: Genève ) frp, Genèva ; german: link=no, Genf ; it, Ginevra ; rm, Genevra is the List of cities in Switzerland, second-most populous city in Switzerland (after Zürich) and the most populous city of Romandy, the French-speaki ...
. Although Germany was not officially invited to send delegates, an unofficial representation was sent, and Crompton insisted on greeting them, despite unease from other members. He expressed "great satisfaction that our peacemaking efforts were successful". In 1926 Crompton was awarded the
Faraday Medal The Faraday Medal is a top international medal awarded by the UK Institution of Engineering and Technology (IET) (previously called the Institution of Electrical Engineers (IEE)). It is part of the IET Achievement Medals collection of awards. T ...
for his work, and two years later work began on Britain's National Grid.


Later life

Whilst Crompton & Co. was one of Britain's largest electrical equipment manufacturers, the emergence of global conglomerates in the 1920s such as
General Electric General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable energ ...
,
Siemens Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', '' ...
and Metropolitan-Vickers meant that Crompton's was beginning to lose ground. In 1929, in a move that greatly surprised the industry, Crompton & Co. merged with its rival F & A. Parkinson Ltd. to form Crompton-Parkinson. After conducting the merger, Crompton retired, leaving the company in the hands of
Frank Parkinson Frank Parkinson (7 February 1887 – 28 January 1946)J. A. Chartres, 'Parkinson, Frank (1887–1946)', Oxford Dictionary of National Biography, online edn, Oxford University Press, October 200accessed 23 January 2010/ref> was a British electrica ...
. He moved from his London home to a house in his native Yorkshire in 1939. The house had no electricity, but his former company installed a generating plant free of charge. Colonel Crompton died in February 1940, aged 94.


Other interests

As well as his professional and private interests in engineering and electricity, Crompton was a keen cyclist. He bought his first bicycle in the 1890s. Inevitably he modified and adapted the vehicle, changing the wheel diameter and pedal cranks. He claimed to be able to cycle 200 miles (320 km) without getting tired. As one would expect of a devotee of all things mechanical, he was an early motorist and a founder member of the Royal Automobile Club and president of the Institute of Automotive Engineers. Starting at his time at
Harrow Harrow may refer to: Places * Harrow, Victoria, Australia * Harrow, Ontario, Canada * The Harrow, County Wexford, a village in Ireland * London Borough of Harrow, England ** Harrow, London, a town in London ** Harrow (UK Parliament constituency) ...
, he was a keen squash player. His dedication to standardisation even extended into this field. He conducted a series of experiments to compare the degree of bounce between the various makes of ball on sale.


Crompton's companies

Crompton-Parkinson itself became part of the
Hawker Siddeley Group Hawker Siddeley was a group of British manufacturing companies engaged in list of aircraft manufacturers, aircraft production. Hawker Siddeley combined the legacies of several British aircraft manufacturers, emerging through a series of mergers ...
in 1968. That group was broken up in stages during the 1980s, and several unrelated companies, all directly descended from Crompton & Co. through an often-complex series of mergers, break-ups and buy-outs, using the Crompton name: * Crompton Lighting - One of the oldest lighting manufacturers, this company is still based in Britain, with manufacturing in
Doncaster Doncaster (, ) is a city in South Yorkshire, England. Named after the River Don, it is the administrative centre of the larger City of Doncaster. It is the second largest settlement in South Yorkshire after Sheffield. Doncaster is situated in ...
,
Yorkshire Yorkshire ( ; abbreviated Yorks), formally known as the County of York, is a Historic counties of England, historic county in northern England and by far the largest in the United Kingdom. Because of its large area in comparison with other Eng ...
and head offices in
Waltham Abbey, Essex Waltham Abbey is a town and civil parish in the Epping Forest District of Essex, within the metropolitan and urban area of London, England, north-east of Charing Cross. It lies on the Greenwich Meridian, between the River Lea in the west a ...
. The company is now part of the American company Cooper Industries. The Crompton name is still widely used on a range of products. A totally separate company using the same name operates in Australia, and is descended from Crompton & Co's Australian subsidiary. * Brook Crompton - a manufacturer of electric motors with facilities in 5 countries, headquartered in
Huddersfield Huddersfield is a market town in the Kirklees district in West Yorkshire, England. It is the administrative centre and largest settlement in the Kirklees district. The town is in the foothills of the Pennines. The River Holme's confluence into ...
, Yorkshire. It is owned by the
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde ...
-based
Lindeteves-Jacoberg Limited Lindeteves-Jacoberg Limited (LJL, ), based in Singapore, is an investment holding company which provides management services to its subsidiaries. The subsidiaries are in the business of distribution of electric motors. The company was founded in 19 ...
. * Crompton Controls - based in
Wakefield Wakefield is a cathedral city in West Yorkshire, England located on the River Calder. The city had a population of 99,251 in the 2011 census.https://www.nomisweb.co.uk/census/2011/ks101ew Census 2011 table KS101EW Usual resident population, ...
, Yorkshire. The company is in private hands and manufactures switchgear,
relay A relay Electromechanical relay schematic showing a control coil, four pairs of normally open and one pair of normally closed contacts An automotive-style miniature relay with the dust cover taken off A relay is an electrically operated switch ...
s,
solenoid upright=1.20, An illustration of a solenoid upright=1.20, Magnetic field created by a seven-loop solenoid (cross-sectional view) described using field lines A solenoid () is a type of electromagnet formed by a helix, helical coil of wire whose ...
s and other electrical components. * Crompton Instruments - Part of Tyco International since 2002, this company manufactures mechanical and electronic electrical meters and related measuring equipment. *
CG Power and Industrial Solutions CG Power and Industrial Solutions Limited, previously known as Crompton Greaves Limited, is an Indian multinational company engaged in design, manufacturing, and marketing of products related to power generation, transmission, and distributio ...
- the modern descendant of Crompton & Co.'s Indian operations, headquartered in
Mumbai Mumbai (, ; also known as Bombay — the official name until 1995) is the capital city of the Indian state of Maharashtra and the ''de facto'' financial centre of India. According to the United Nations, as of 2018, Mumbai is the second- ...
. Like its original parent company, this is a wide-ranging manufacturer building switchgear, motors, generators,
transformer A transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits. A varying current in any coil of the transformer produces a varying magnetic flux in the transformer' ...
s and meters. The company is engaged in the
electrification Electrification is the process of powering by electricity and, in many contexts, the introduction of such power by changing over from an earlier power source. The broad meaning of the term, such as in the history of technology, economic histor ...
program for
Indian Railways Indian Railways (IR) is a statutory body under the ownership of Ministry of Railways, Government of India that operates India's national railway system. It manages the fourth largest national railway system in the world by size, with a tot ...
. *
Crompton Greaves Consumer Electricals Crompton Greaves Consumer Electricals Limited (also known as Crompton) is an Indian electrical equipment company based in Mumbai, India. The company has lighting and electrical consumer durables including LED lighting, fans, pumps, and house ...


Publications

*


References


Bibliography

* "Reminiscences" by R.E.B. Crompton.
IEC Website

IET Website biography of Crompton

IET Article on Crompton's work in India
* Johnson, J & Randell, W (1948) ''Colonel Crompton and the Evolution of the Electrical Industry'', Longman Green.


External links

{{DEFAULTSORT:Crompton, R. E. B. 1845 births 1940 deaths British electrical engineers People of the Industrial Revolution People from Thirsk Rifle Brigade officers Royal Engineers officers British Army personnel of the Second Boer War Graduates of the Royal Military College, Sandhurst People educated at Harrow School Fellows of the Royal Society 19th-century British engineers 19th-century English businesspeople 20th-century British engineers 20th-century English businesspeople Military personnel from Yorkshire