121-673: Birmingham International Carnival takes place biennially in August in Birmingham , England . It is a celebration of Caribbean culture, arts, food and entertainment. Caribbean style carnivals were held in Handsworth Park , Birmingham, from 1984 to 1994. The following year, the carnival moved from the park onto the streets of Handsworth , and became known as the Birmingham Carnival . Since 1999, it has been held as
242-522: A Eurostat measure of the functional city-region approximated to local government districts, had a population of 2,357,100 in 2004. In addition to Birmingham itself, the LUZ ( West Midlands conurbation ) includes the Metropolitan Boroughs of Dudley , Sandwell , Solihull and Walsall , along with the districts of Lichfield , Tamworth , North Warwickshire and Bromsgrove . Beyond this is
363-476: A Lord Mayoralty was conferred on Birmingham by Letters Patent on 3 June 1896. Birmingham's ten parliamentary constituencies are represented in the House of Commons as of 2024 by one Conservative , one independent and eight Labour MPs . Originally part of Warwickshire , Birmingham expanded in the late 19th and early 20th centuries, absorbing parts of Worcestershire to the south and Staffordshire to
484-560: A conurbation with the borough of Solihull to the south east, and with the city of Wolverhampton and the industrial towns of the Black Country to the north west, which form the West Midlands Built-up Area covering 59,972 ha (600 km ; 232 sq mi). Surrounding this is Birmingham's metropolitan area – the area to which it is closely economically tied through commuting – which includes
605-410: A Section 114 notice to say that it could not meet its financial commitments. Effectively this meant the council was bankrupt. A major contributing factor is a £1.1b sum that has been paid out since 2010, for equal pay claims. There is still a bill for £760m, increasing by £14m a month. There are also problems with a new IT system that was projected to cost £19m but is now closer to £100m. In addition there
726-503: A broader range of specialist, higher-skilled and more lucrative activities. By the time of the English Civil War Birmingham's booming economy, its expanding population, and its resulting high levels of social mobility and cultural pluralism , had seen it develop new social structures very different from those of more established areas. Relationships were built around pragmatic commercial linkages rather than
847-578: A century of the charter Birmingham had grown into a prosperous urban centre of merchants and craftsmen. By 1327 it was the third-largest town in Warwickshire, a position it would retain for the next 200 years. The principal governing institutions of medieval Birmingham – including the Guild of the Holy Cross and the lordship of the de Birmingham family – collapsed between 1536 and 1547, leaving
968-402: A chain, which meant that power could only be applied in one direction, by pulling. This was effective in engines that were used for pumping water, but the double action of the piston meant that it could push as well as pull. This was not possible as long as the beam and the rod were connected by a chain. Furthermore, it was not possible to connect the piston rod of the sealed cylinder directly to
1089-426: A complex machine with sufficient precision ' ". In 1774, John Wilkinson invented a boring machine in which the shaft that held the cutting tool was supported on both ends and extended through the cylinder, unlike the cantilevered borers then in use. Boulton wrote in 1776 that "Mr. Wilkinson has bored us several cylinders almost without error; that of 50 inches diameter, which we have put up at Tipton, does not err on
1210-534: A considerable urban heat island effect. During the coldest night recorded, 14 January 1982, the temperature fell to −20.8 °C (−5.4 °F) at Birmingham Airport, but just −14.3 °C (6.3 °F) at Edgbaston, near the city centre. Birmingham is a snowy city relative to other large UK conurbations, due to its inland location and comparatively high elevation. Between 1961 and 1990 Birmingham Airport averaged 13.0 days of snow lying annually, compared to 5.33 at London Heathrow . Snow showers often pass through
1331-403: A constant power and smoothed the action of the alternating strokes. To its rotating central shaft, belts and gears could be attached to drive a great variety of machinery. Because factory machinery needed to operate at a constant speed, Watt linked a steam regulator valve to a centrifugal governor which he adapted from those used to automatically control the speed of windmills. The centrifugal
SECTION 10
#17327907469031452-515: A constantly diversifying range of products, in a highly entrepreneurial economy of small, often self-owned workshops. This led to exceptional levels of inventiveness: between 1760 and 1850 – the core years of the Industrial Revolution – Birmingham residents registered over three times as many patents as those of any other British town or city. The demand for capital to feed rapid economic expansion also saw Birmingham grow into
1573-409: A fluid (a refrigerant) which evaporates at temperatures below 100 °C. Such systems are however fairly complex. They work with pressures of 6 to 20 bars, so that the whole system has to be completely sealed. The Expansion Engine can offer significant advantages here, in particular for lower power ratings of 2 to 100 kW: with expansion ratios of 1:5, the theoretical efficiency reaches 15%, which
1694-591: A haven for Nonconformists from the 1660s. By 1700 Birmingham's population had increased fifteen-fold and the town was the fifth-largest in England and Wales. The 18th century saw this tradition of free-thinking and collaboration blossom into the cultural phenomenon now known as the Midlands Enlightenment . The town developed into a notable centre of literary , musical , artistic and theatrical activity; and its leading citizens – particularly
1815-624: A major financial centre with extensive international connections. Lloyds Bank was founded in the town in 1765, and Ketley's Building Society , the world's first building society , in 1775. By 1800 the West Midlands had more banking offices per head than any other region in Britain, including London. Innovation in 18th-century Birmingham often took the form of incremental series of small-scale improvements to existing products or processes, but also included major developments that lay at
1936-589: A record-breaking nationwide tornado outbreak , two tornadoes touched down within the Birmingham city limits – in Erdington and Selly Oak – with six tornadoes touching down within the boundaries of the wider West Midlands county. More recently, a destructive T6/F3 tornado occurred in July 2005 in the south of the city, damaging homes and businesses in the area. The tornado took an almost parallel path to that of
2057-521: A renaissance of the technology. Today, there is an enormous amount of waste steam and waste heat with temperatures between 100 and 150 °C generated by industry. In addition, solarthermal collectors, geothermal energy sources and biomass reactors produce heat in this temperature range. There are technologies to utilise this energy, in particular the Organic Rankine Cycle . In principle, these are steam turbines which do not use water but
2178-505: A shared ancestor, or a mythical tribal figurehead. Place names ending in -ingahām are characteristic of primary settlements established during the early phases of Anglo-Saxon colonisation of an area, suggesting that Birmingham was probably in existence by the early 7th century at the latest. Surrounding settlements with names ending in -tūn ('farm'), -lēah ('woodland clearing'), -worð ('enclosure') and -field ('open ground') are likely to be secondary settlements created by
2299-492: A single black box later described by an official American historian as "the most valuable cargo ever brought to our shores". The city was extensively redeveloped during the 1950s and 1960s. This included the construction of large tower block estates, such as Castle Vale . The Bull Ring was reconstructed and New Street station was redeveloped. In the decades following World War II, the ethnic makeup of Birmingham changed significantly, as it received waves of immigration from
2420-499: A suitable water source and topography . Watt's partner Matthew Boulton began developing a multitude of machines that made use of this rotary power, developing the first modern industrialized factory, the Soho Foundry , which in turn produced new steam engine designs. Watt's early engines were like the original Newcomen designs in that they used low-pressure steam, and all of the power was produced by atmospheric pressure. When, in
2541-549: A tourist attraction in the early 1900s. Birmingham has a temperate maritime climate ( Cfb according to the Köppen climate classification ), like much of the British Isles, with average maximum temperatures in summer (July) being around 21.3 °C (70.3 °F); and in winter (January) around 6.7 °C (44.1 °F). Between 1971 and 2000 the warmest day of the year on average was 28.8 °C (83.8 °F) and
SECTION 20
#17327907469032662-480: A vacuum created by condensing steam. The appliance was also proposed for draining mines , but it could only draw fluid up approximately 25 feet, meaning it had to be located within this distance of the mine floor being drained. As mines became deeper, this was often impractical. It also consumed a large amount of fuel compared with later engines. The solution to draining deep mines was found by Thomas Newcomen who developed an "atmospheric" engine that also worked on
2783-541: Is a city and metropolitan borough in the metropolitan county of West Midlands in England . It is the second-largest city in Britain – commonly referred to as the second city of the United Kingdom – with a population of 1.145 million in the city proper . Birmingham borders the Black Country to its west and, together with the city of Wolverhampton and towns including Dudley and Solihull , forms
2904-461: Is a major international commercial centre and an important transport, retail, events and conference hub. Its metropolitan economy is the second-largest in the United Kingdom with a GDP of $ 121.1bn (2014 ). Its five universities, including the University of Birmingham , make it the largest centre of higher education in the country outside London. Birmingham's major cultural institutions –
3025-581: Is a projected £87m deficit for the financial year 23/24. Birmingham City Council has 101 councillors representing 77 wards as of 2018. Its headquarters are at the Council House in Victoria Square . As of 2023 , the council has a Labour Party majority and is led by John Cotton. Labour replaced the previous no overall control status at the May 2012 elections. The honour and dignity of
3146-533: Is in the range of ORC systems. The Expansion Engine uses water as working fluid which is simple, cheap, non-toxic, non-flammable and non-corrosive. It works at pressure near and below atmospheric, so that sealing is not a problem. And it is a simple machine, implying cost effectiveness. Researchers from the University of Southampton / UK are currently developing a modern version of Watt's engine in order to generate energy from waste steam and waste heat. They improved
3267-730: Is located in the centre of the West Midlands region of England on the Birmingham Plateau – an area of relatively high ground, ranging between 500 and 1,000 feet (150 and 300 metres) above sea level and crossed by Britain's main north–south watershed between the basins of the Rivers Severn and Trent . To the immediate south west of the city lie the Lickey Hills , Clent Hills and Walton Hill , which reach 1,033 feet (315 m) and have extensive views over
3388-507: Is particularly a large community of Asian descent, especially from Pakistani, Indian and Bangladeshi backgrounds, as well as Afro-Caribbeans from the Commonwealth , and a solid Chinese presence through migrants from the former colony of Hong Kong . Birmingham also has an older Irish connection, with the city having the largest population of Irish in mainland Britain and home to its only Irish quarter, Digbeth . In Birmingham, 65.9% of
3509-800: The Anglican Diocese of Birmingham was created in 1905. There are two other cathedrals: St Chad's , seat of the Roman Catholic Archdiocese of Birmingham and the Greek Orthodox Cathedral of the Dormition of the Mother of God and St Andrew . The Coptic Orthodox Diocese of the Midlands is also based at Birmingham, with a cathedral under construction. The original parish church of Birmingham, St Martin in
3630-568: The Birmingham International Carnival in Perry Barr ( Perry Park ), following a procession from Handsworth's Soho Road. This article related to a British festival is a stub . You can help Misplaced Pages by expanding it . This England -related article is a stub . You can help Misplaced Pages by expanding it . Birmingham Birmingham ( / ˈ b ɜːr m ɪ ŋ ə m / BUR -ming-əm )
3751-687: The Birmingham Political Union bringing the country to the brink of civil war during the Days of May that preceded the passing of the Great Reform Act in 1832. The Union's meetings on Newhall Hill in 1831 and 1832 were the largest political assemblies Britain had ever seen. Lord Durham , who drafted the Act, wrote that "the country owed Reform to Birmingham, and its salvation from revolution". This reputation for having "shaken
Birmingham International Carnival - Misplaced Pages Continue
3872-473: The City of Birmingham Symphony Orchestra , Birmingham Royal Ballet , Birmingham Repertory Theatre , Library of Birmingham and Barber Institute of Fine Arts – enjoy international reputations, and the city has vibrant and influential grassroots art , music , literary and culinary scenes. Birmingham was the host city for the 2022 Commonwealth Games . In 2021, Birmingham was the third most visited city in
3993-521: The Commonwealth of Nations and beyond. The city's population peaked in 1951 at 1,113,000 residents. 21 people were killed and 182 were injured in a series of bomb attacks in 1974, thought to be carried out by the Provisional IRA . The bombings were the worst terror attacks in England up until the 2005 London bombings and consisted of bombs being planted in two pubs in central Birmingham. Six men were convicted , who became known later as
4114-644: The Frisch–Peierls memorandum of 1940, the same year that the cavity magnetron , the key component of radar and later of microwave ovens , was invented by John Randall and Henry Boot . Details of these two discoveries, together with an outline of the first jet engine invented by Frank Whittle in nearby Rugby , were taken to the United States by the Tizard Mission in September 1940, in
4235-472: The Industrial Revolution , 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 "atmospheric" design. At the end of the power stroke , the weight of the object being moved by the engine pulled the piston to the top of the cylinder as steam was introduced. Then the cylinder
4356-664: The Science Museum, London , while an 1817 blowing engine , formerly used at the Netherton ironworks of M W Grazebrook now decorates Dartmouth Circus , a traffic island at the start of the A38(M) motorway in Birmingham. The Henry Ford Museum in Dearborn, Michigan houses a replica of a 1788 Watt rotative engine. It is a full-scale working model of a Boulton-Watt engine. The American industrialist Henry Ford commissioned
4477-637: The Science Museum, London . The oldest working engine in the world is the Smethwick Engine , brought into service in May 1779 and now at Thinktank in Birmingham (formerly at the now defunct Museum of Science and Industry, Birmingham ). The oldest still in its original engine house and still capable of doing the job for which it was installed is the 1812 Boulton and Watt engine at the Crofton Pumping Station in Wiltshire . This
4598-549: The Soho Manufactory , pioneering the combination and mechanisation under one roof of previously separate manufacturing activities through a system known as "rational manufacture". As the largest manufacturing unit in Europe, this came to symbolise the emergence of the factory system . Most significant, however, was the development in 1776 of the industrial steam engine by James Watt and Matthew Boulton. Freeing for
4719-536: The Victorian era , the population of Birmingham grew rapidly to well over half a million and Birmingham became the second largest population centre in England. Birmingham was granted city status in 1889 by Queen Victoria . Joseph Chamberlain , mayor of Birmingham and later an MP, and his son Neville Chamberlain , who was Lord Mayor of Birmingham and later the British Prime Minister, are two of
4840-460: The West Midlands conurbation . The royal town of Sutton Coldfield is incorporated within the city limits to the northeast. The wider metropolitan area has a population of 4.3 million, making it the largest outside London. Located in the West Midlands region of England, Birmingham is considered to be the social, cultural, financial and commercial centre of the Midlands . It is just west of
4961-465: The parallel motion , which allowed the piston rods of the individual cylinders to move in straight lines, keeping the piston true in the cylinder, while the walking beam end moved through an arc, somewhat analogous to a crosshead in later steam engines. In 1698, the English mechanical designer Thomas Savery invented a pumping appliance that used steam to draw water directly from a well by means of
Birmingham International Carnival - Misplaced Pages Continue
5082-474: The "rocking beam", pulled down the end of the beam, lifting the opposite end of the beam. Hence, the pump deep in the mine attached to opposite end of the beam via ropes and chains was driven. The pump pushed, rather than pulled the column of water upward, hence it could lift water any distance. Once the piston was at the bottom, the cycle repeated. The Newcomen engine was more powerful than the Savery engine. For
5203-517: The 112-mile (180 km) London and Birmingham Railway of 1838. Birmingham schoolteacher Rowland Hill invented the postage stamp and created the first modern universal postal system in 1839. Alexander Parkes invented the first human-made plastic in the Jewellery Quarter in 1855. By the 1820s, the country's extensive canal system had been constructed, giving greater access to natural resources and fuel for industries. During
5324-487: The 1880s, Hathorn Davey and Co / Leeds produced a 1 hp / 125 rpm atmospheric engine with external condenser but without steam expansion. It has been argued that this was probably the last commercial atmospheric engine to be manufactured. As an atmospheric engine, it did not have a pressurized boiler. It was intended for small businesses. Watt's Expansion Engine is generally considered as of historic interest only. There are however some recent developments which may lead to
5445-454: The 1931 tornado. Notable tornadoes have also struck the city in 1923, 1946, 1951, 1998 and 1999, most of which being of T2-T4/F1-F2 intensity. There are 571 parks within Birmingham – more than any other European city – totalling over 3,500 hectares (14 sq mi) of public open space. The city has over six million trees, and 250 miles (400 kilometres) of urban brooks and streams. Sutton Park , which covers 2,400 acres (971 ha) in
5566-403: The 2001, 2011, and 2021 censuses, the proportion of Christians in Birmingham decreased from 59.1% to 46.1% to 34%, while the proportion of Muslims increased from 14.3% to 21.8% to 29.9% and the proportion of people with no religious affiliation increased from 12.4% to 19.3% to 24.1%. All other religions remained proportionately similar. St Philip's Cathedral was upgraded from church status when
5687-547: The Birmingham Six and sentenced to life imprisonment, who were acquitted after 16 years by the Court of Appeal . The convictions are now considered one of the worst British miscarriages of justice in recent times. The true perpetrators of the attacks are yet to be arrested. Birmingham remained by far Britain's most prosperous provincial city as late as the 1970s, with household incomes exceeding even those of London and
5808-476: The Borough was divided into 13 wards. William Scholefield became the first Mayor and William Redfern was appointed as Town Clerk. Birmingham Town Police were established the following year. Birmingham's tradition of innovation continued into the 19th century. Birmingham was the terminus for both of the world's first two long-distance railway lines: the 82-mile (132 km) Grand Junction Railway of 1837 and
5929-731: The Bull Ring , is Grade II* listed . A short distance from Five Ways the Birmingham Oratory was completed in 1910 on the site of Cardinal Newman 's original foundation. There are several Christadelphian meeting halls in the city and the Christadelphian Magazine and Publishing Group has its headquarters in Hall Green . Watt steam engine The Watt steam engine design was an invention of James Watt that became synonymous with steam engines during
6050-493: The Newcomen engine but Watt was still discouraged by seemingly insurmountable problems before a marketable engine could be perfected. It was only after entering into partnership with Matthew Boulton that such became reality. Watt told Boulton about his ideas on improving the engine, and Boulton, an avid entrepreneur, agreed to fund development of a test engine at Soho , near Birmingham . At last Watt had access to facilities and
6171-564: The Rivers Tame, Rea and Cole and their tributaries. To the north and west of the fault, between 150 and 600 feet (46 and 183 metres) higher than the surrounding area and underlying much of the city centre, lies a long ridge of harder Keuper Sandstone . The bedrock underlying Birmingham was mostly laid down during the Permian and Triassic periods. The area has evidence of glacial deposits , with prominent erratic boulders becoming
SECTION 50
#17327907469036292-475: The South East, but its economic diversity and capacity for regeneration declined in the decades that followed World War II as Central Government sought to restrict the city's growth and disperse industry and population to the stagnating areas of Wales and Northern England . These measures hindered "the natural self-regeneration of businesses in Birmingham, leaving it top-heavy with the old and infirm", and
6413-636: The UK by people from foreign nations. The name Birmingham comes from the Old English Beormingahām , meaning the home or settlement of the Beormingas – a tribe or clan whose name means 'Beorma's people' and which may have formed an early unit of Anglo-Saxon administration. Beorma , after whom the tribe was named, could have been its leader at the time of the Anglo-Saxon settlement,
6534-556: The Wake Green football club; Bartley and Frankley reservoirs; and Handsworth cemetery with surrounding golf courses. Birmingham has many areas of wildlife that lie in both informal settings such as the Project Kingfisher and Woodgate Valley Country Park and in a selection of parks such as Lickey Hills Country Park , Pype Hayes Park & Newhall Valley, Handsworth Park , Kings Heath Park , and Cannon Hill Park ,
6655-628: The Welsh capital Cardiff , 45 miles (72 km) south-west of Nottingham , 70 miles (110 km) south of Manchester , and 75 miles (121 km) north-north-east of Bristol . Much of the area now occupied by the city was originally a northern reach of the ancient Forest of Arden and the city remains relatively densely covered by oak in a large number of districts such as Moseley , Saltley , Yardley , Stirchley and Hockley . These places, with names ending in "-ley", deriving from Old English - lēah meaning "woodland clearing", are named after
6776-499: The age of 25 and the median age being 34 years of age, below the national average of 40. Religion in Birmingham (2021) Christianity is the largest religion within Birmingham, with 34% of residents identifying as Christians in the 2021 Census . The city's religious profile is highly diverse: outside London, Birmingham has the United Kingdom's largest Muslim , Sikh and Buddhist communities; its second largest Hindu community; and its seventh largest Jewish community. Between
6897-639: The area during the Bronze Age , when a substantial but short-lived influx of population occurred between 1700 BC and 1000 BC, possibly caused by conflict or immigration in the surrounding area. During the 1st-century Roman conquest of Britain , the forested country of the Birmingham Plateau formed a barrier to the advancing Roman legions, who built the large Metchley Fort in the area of modern-day Edgbaston in AD ;48, and made it
7018-417: The beam, because while the rod moved vertically in a straight line, the beam was pivoted at its centre, with each side inscribing an arc. To bridge the conflicting actions of the beam and the piston, Watt developed his parallel motion . This device used a four bar linkage coupled with a pantograph to produce the required straight line motion much more cheaply than if he had used a slider type of linkage. He
7139-470: The borough are designated as green belt , as a portion of the wider West Midlands Green Belt. This is a strategic local government policy used to prevent urban sprawl and preserve greenfield land . Areas included are the aforementioned Sutton Park; land along the borough boundary by the Sutton Coldfield, Walmley and Minworth suburbs; Kingfisher, Sheldon, Woodgate Valley country parks; grounds by
7260-475: The city became increasingly dependent on the motor industry . The recession of the early 1980s saw Birmingham's economy collapse, with unprecedented levels of unemployment and outbreaks of social unrest in inner-city districts. Since the turn of the 21st century, many parts of Birmingham have been transformed, with the redevelopment of the Bullring Shopping Centre , the construction of
7381-570: The city centre . The city does however have numerous canals , collectively named the Birmingham Canal Navigations . Historically a market town in Warwickshire in the medieval period, Birmingham grew during the 18th century during the Midlands Enlightenment and during the Industrial Revolution , which saw advances in science, technology and economic development, producing a series of innovations that laid many of
SECTION 60
#17327907469037502-575: The city via the Cheshire gap on north westerly airstreams, but can also come off the North Sea from north easterly airstreams. Extreme weather is rare, but the city has been known to experience tornadoes . On 14 June 1931, an extremely damaging T6/F3 tornado struck the city, carving an 11-mile damage path through Hollywood, Hall Green, Sparkbrook, Tyseley, Greet and Small Heath, causing extensive damage and killing 1 woman. On 23 November 1981, during
7623-586: The city. Birmingham is drained only by minor rivers and brooks, primarily the River Tame and its tributaries the Cole and the Rea . Birmingham is located significantly inland, and its nearest body of sea is at Liverpool Bay . It lies at the same latitude as Lowestoft , Britain's easternmost settlement; it is therefore much more proximate to the western coast of Wales, at Cardigan Bay . The City of Birmingham forms
7744-491: The coldest night typically fell to −9.0 °C (15.8 °F). Some 11.2 days each year rose to a temperature of 25.1 °C (77.2 °F) or above and 51.6 nights reported an air frost. The highest recorded temperature recorded at the Edgbaston Campus was 37.4 °C (99.3 °F), whilst a temperature of 37.0 °C (98.6 °F) was recorded at Birmingham Airport on the city's eastern edge, both recorded on 19 July 2022 . Like most other large cities, Birmingham has
7865-408: The condenser as spray absorbed the latent heat of the steam, and was determined as seven times the volume of the condensed steam. The condensate and the injected water was then removed by the air pump, and the surrounding cold water served to absorb the remaining thermal energy to retain a condenser temperature of 30 °C to 45 °C and the equivalent pressure of 0.04 to 0.1 bar At each stroke
7986-423: The creation of a planned market town and seigneurial borough within his demesne or manorial estate, around the site that became the Bull Ring . This established Birmingham as the primary commercial centre for the Birmingham Plateau at a time when the area's economy was expanding rapidly, with population growth nationally leading to the clearance, cultivation and settlement of previously marginal land. Within
8107-407: The cylinder and then connect with the condenser. Consequently, the direction of the power stroke might be reversed, making it easier to obtain rotary motion. Additional benefits of the double acting engine were increased efficiency, higher speed (greater power) and more regular motion. Before the development of the double acting piston, the linkage to the beam and the piston rod had been by means of
8228-409: The cylinder into the condenser where it cooled and condensed from water vapour to liquid water, maintaining a partial vacuum in the condenser that was communicated to the space of the cylinder by the connecting passage. External atmospheric pressure then pushed the piston down the cylinder. The separation of the cylinder and condenser eliminated the loss of heat that occurred when steam was condensed in
8349-406: The cylinder. The condenser remained cold and below atmospheric pressure at all times, while the cylinder remained hot at all times. Steam was drawn from the boiler to the cylinder under the piston . When the piston reached the top of the cylinder, the steam inlet valve closed and the valve controlling the passage to the condenser opened. The condenser being at a lower pressure, drew the steam from
8470-460: The design. Notably, Watt performed a lengthy series of trials on ways to seal the piston in the cylinder, which considerably reduced leakage during the power stroke, preventing power loss. All of these changes produced a more reliable design which used half as much coal to produce the same amount of power. The new design was introduced commercially in 1776, with the first example sold to the Carron Company ironworks. Watt continued working to improve
8591-410: The early 1800s, other companies introduced high-pressure steam engines, Watt was reluctant to follow suit due to safety concerns. Wanting to improve on the performance of his engines, Watt began considering the use of higher-pressure steam, as well as designs using multiple cylinders in both the double-acting concept and the multiple-expansion concept. These double-acting engines required the invention of
8712-427: The engine, and in 1781 introduced a system using a sun and planet gear to turn the linear motion of the engines into rotary motion. This made it useful not only in the original pumping role, but also as a direct replacement in roles where a water wheel would have been used previously. This was a key moment in the industrial revolution, since power sources could now be located anywhere instead of, as previously, needing
8833-463: The exchange of knowledge between pure science and the practical world of manufacturing and technology. This created a "chain reaction of innovation", forming a pivotal link between the earlier Scientific Revolution and the Industrial Revolution that would follow. Birmingham's explosive industrial expansion started earlier than that of the textile-manufacturing towns of the North of England , and
8954-626: The fabric of privilege to its base" in 1832 led John Bright to make Birmingham the platform for his successful campaign for the Second Reform Act of 1867, which extended voting rights to the urban working class. The original Charter of Incorporation , dated 31 October 1838, was received in Birmingham on 1 November, then read in the Town Hall on 5 November with elections for the first Birmingham Town Council being held on 26 December. Sixteen Aldermen and 48 Councillors were elected and
9075-399: The final quarter of the 20th century. The Watt steam engine was invented in Birmingham. The resulting high level of social mobility also fostered a culture of political radicalism which, under leaders from Thomas Attwood to Joseph Chamberlain , was to give it a political influence unparalleled in Britain outside London and a pivotal role in the development of British democracy. From
9196-458: The first importance" in the development of the mechanised cotton industry . In 1741 they opened the world's first cotton mill in Birmingham's Upper Priory. In 1746 John Roebuck invented the lead chamber process , enabling the large-scale manufacture of sulphuric acid , and in 1780 James Keir developed a process for the bulk manufacture of alkali , together marking the birth of the modern chemical industry . In 1765 Matthew Boulton opened
9317-426: The first time the manufacturing capacity of human society from the limited availability of hand, water and animal power, this was arguably the pivotal moment of the entire Industrial Revolution and a key factor in the worldwide increases in productivity over the following century. Birmingham rose to national political prominence in the campaign for political reform in the early 19th century, with Thomas Attwood and
9438-459: The first time water could be raised from a depth of over 300 feet. The first example from 1712 was able to replace a team of 500 horses that had been used to pump out the mine. Seventy-five Newcomen pumping engines were installed at mines in Britain, France, Holland, Sweden and Russia. In the next fifty years only a few small changes were made to the engine design. While Newcomen engines brought practical benefits, they were inefficient in terms of
9559-647: The focus of a network of Roman roads . Birmingham was then later established by the Beormingas around the 6th or 7th century as a small settlement in the then heavily forested Arden region in Mercia . The development of Birmingham into a significant urban and commercial centre began in 1166, when the Lord of the Manor Peter de Bermingham obtained a charter to hold a market at his castle , and followed this with
9680-535: The former forest. Birmingham is dominated by the Birmingham Fault, which runs diagonally through the city from the Lickey Hills in the south west, passing through Edgbaston and the Bull Ring, to Erdington and Sutton Coldfield in the north east. To the south and east of the fault the ground is largely softer Mercia Mudstone , interspersed with beds of Bunter pebbles and crossed by the valleys of
9801-399: The foundations of modern industrial society . By 1791, it was being hailed as "the first manufacturing town in the world". Birmingham's distinctive economic profile, with thousands of small workshops practising a wide variety of specialised and highly skilled trades, encouraged exceptional levels of creativity and innovation; this provided an economic base for prosperity that was to last into
9922-471: The functioning of the steam engine. His most notable measuring device, still in use today, is the Watt indicator incorporating a manometer to measure steam pressure within the cylinder according to the position of the piston, enabling a diagram to be produced representing the pressure of the steam as a function of its volume throughout the cycle. The oldest surviving Watt engine is Old Bess of 1777, now in
10043-550: The heart of the emergence of industrial society . In 1709 the Birmingham-trained Abraham Darby I moved to Coalbrookdale in Shropshire and built the first blast furnace to successfully smelt iron ore with coke , transforming the quality, volume and scale on which it was possible to produce cast iron . In 1732 Lewis Paul and John Wyatt invented roller spinning , the "one novel idea of
10164-500: The industry's products. By the 1600s Birmingham formed the commercial hub of a network of forges and furnaces stretching from South Wales to Cheshire and its merchants were selling finished manufactured goods as far afield as the West Indies . These trading links gave Birmingham's metalworkers access to much wider markets, allowing them to diversify away from lower-skilled trades producing basic goods for local sale, towards
10285-476: The later expansion of the Anglo-Saxon population, in some cases possibly on earlier British sites. There is evidence of early human activity in the Birmingham area dating back to around 8000 BC, with Stone Age artefacts suggesting seasonal settlements, overnight hunting parties and woodland activities such as tree felling. The many burnt mounds that can still be seen around the city indicate that modern humans first intensively settled and cultivated
10406-538: The latter also housing the mini zoo, Birmingham Wildlife Conservation Park . The 2021 census recorded 1,144,900 people living in Birmingham, an increase of around 6.7% from 2011 when 1,073,045 were recorded. It is the 27th largest city in Europe by population within its city boundary. Birmingham's continuous urban area extends beyond the city's boundaries: the Birmingham Larger Urban Zone ,
10527-472: The members of the Lunar Society of Birmingham – became influential participants in the circulation of philosophical and scientific ideas among Europe's intellectual elite. The close relationship between Enlightenment Birmingham's leading thinkers and its major manufacturers – in men like Matthew Boulton and James Keir they were often in fact the same people – made it particularly important for
10648-425: The most well-known political figures who have lived in Birmingham. The city established its own university in 1900. The city suffered heavy bomb damage during World War II 's " Birmingham Blitz ". The city was also the scene of two scientific discoveries that were to prove critical to the outcome of the war. Otto Frisch and Rudolf Peierls first described how a practical nuclear weapon could be constructed in
10769-618: The new Library of Birmingham (the largest public library in Europe) and the regeneration of old industrial areas such as Brindleyplace , The Mailbox and the International Convention Centre , as well as the rationalisation of the Inner Ring Road . In 1998 Birmingham hosted the 24th G8 summit . The city successfully hosted the 2022 Commonwealth Games . On 5 September 2023 Birmingham city council issued
10890-418: The next power stroke could commence. Watt realised that the heat needed to warm the cylinder could be saved by adding a separate condensing cylinder. After the power cylinder was filled with steam, a valve was opened to the secondary cylinder, allowing the steam to flow into it and be condensed, which drew the steam from the main cylinder causing the power stroke. The condensing cylinder was water cooled to keep
11011-612: The north and west. The city absorbed Sutton Coldfield in 1974 and became a metropolitan borough in the new West Midlands county . A top-level government body, the West Midlands Combined Authority , was formed in April 2016. The WMCA holds devolved powers in transport, development planning, and economic growth. The authority is governed by a directly elected mayor , similar to the Mayor of London . Birmingham
11132-544: The north of the city, is the largest urban park in Europe and a national nature reserve . Birmingham Botanical Gardens , located close to the city centre, retains the regency landscape of its original design by J. C. Loudon in 1829, while the Winterbourne Botanic Garden in Edgbaston reflects the more informal Arts and Crafts tastes of its Edwardian origins. Several green spaces within
11253-401: The piston, keeping the piston and cylinder warm to prevent condensation within it. The second improvement was the utilisation of steam expansion against the vacuum on the other side of the piston. The steam supply was cut during the stroke, and the steam expanded against the vacuum on the other side. This increased the efficiency of the engine, but also created a variable torque on the shaft which
11374-420: The population were aged between 15 and 64, higher than when compared to the national average of 64.1% in England and Wales. Furthermore, 20.9% of the population were aged under 15, higher than the national average of 17.4% while the population aged over 65 was 13.1%, which was lower than the national average of 18.6% respectively. Birmingham is one of the youngest cities in Europe with 40% of its population below
11495-537: The population were born outside the UK, an increase of 4.5% percentage points from 2011. Figures showed that the five largest foreign-born groups living in Birmingham were born in Pakistan, India, Bangladesh, Romania and Jamaica. In 2011, 57% of primary and 52% of secondary pupils were from non-White British families. As of 2021, 31.6% of school pupils in Birmingham were White , 37.7% were Asian , 12.6% were Black , 9.7% were Mixed race and 8.4% were Other. There
11616-569: The practical experience of craftsmen who were soon able to get the first engine working. As fully developed, it used about 75% less fuel than a similar Newcomen one. In 1775, Watt designed two large engines: one for the Bloomfield Colliery at Tipton , completed in March 1776, and one for John Wilkinson 's ironworks at Broseley in Shropshire , which was at work the following month. A third engine, at Stratford-le-Bow in east London,
11737-470: The replica engine from the English manufacturer Charles Summerfield in 1932. The museum also holds an original Boulton and Watt atmospheric pump engine, originally used for canal pumping in Birmingham, illustrated below, and in use in situ at the Bowyer Street pumping station, from 1796 until 1854, and afterwards removed to Dearborn in 1929. An other one is preserved at Fumel factory, France. In
11858-451: The rigid paternalism and deference of feudal society , and loyalties to the traditional hierarchies of the established church and aristocracy were weak. The town's reputation for political radicalism and its strongly Parliamentarian sympathies saw it attacked by Royalist forces in the Battle of Birmingham in 1643, and it developed into a centre of Puritanism in the 1630s and as
11979-446: The steam condensing. At the end of the power stroke, the valve was closed so the power cylinder could be filled with steam as the piston moved to the top. The result was the same cycle as Newcomen's design, but without any cooling of the power cylinder which was immediately ready for another stroke. Watt worked on the design over a period of several years, introducing the condenser, and introducing improvements to practically every part of
12100-405: The steam valve was closed, and cold water was briefly injected into the cylinder as a means of cooling the steam. This water condensed the steam and created a partial vacuum below the piston. The atmospheric pressure outside the engine was then greater than the pressure within the cylinder, thereby pushing the piston into the cylinder. The piston, attached to a chain and in turn attached to one end of
12221-534: The summer of 1940 to the spring of 1943, Birmingham was bombed heavily by the German Luftwaffe in what is known as the Birmingham Blitz . The damage done to the city's infrastructure, in addition to a deliberate policy of demolition and new building by planners, led to extensive urban regeneration in subsequent decades. Birmingham's economy is now dominated by the service sector . The city
12342-404: The theory, demonstrating that theoretical efficiencies of up to 17.4% (and actual efficiencies of 11%) are possible. In order to demonstrate the principle, a 25 watt experimental model engine was built and tested. The engine incorporates steam expansion as well as new features such as electronic control. The picture shows the model built and tested in 2016. Currently, a project to build and test
12463-448: The thickness of an old shilling in any part". Boulton and Watt 's practice was to help mine-owners and other customers to build engines, supplying men to erect them and some specialised parts. However, their main profit from their patent was derived from charging a licence fee to the engine owners, based on the cost of the fuel they saved. The greater fuel efficiency of their engines meant that they were most attractive in areas where fuel
12584-607: The town of Tamworth and the city of Lichfield in Staffordshire to the north; the city of Coventry and the towns of Nuneaton , Bedworth , Whitnash , Kenilworth , Rugby, Atherstone , Coleshill , Warwick and Leamington Spa to the east in Warwickshire and the Worcestershire towns of Redditch and Bromsgrove to the south west. As the crow flies, Birmingham lies approximately 100 miles (160 km) north-west of London , 85 miles (137 km) north-east of
12705-430: The town with an unusually high degree of social and economic freedom and initiating a period of transition and growth. The importance of the manufacture of iron goods to Birmingham's economy was recognised as early as 1538, and grew rapidly as the century progressed. Equally significant was the town's emerging role as a centre for the iron merchants who organised finance, supplied raw materials and traded and marketed
12826-585: The traditional centre point of England at Meriden , and is the most inland major city in the country, and lying north of the Cotswolds and east of the Shropshire Hills . Distinctively, Birmingham only has small rivers flowing through it, mainly the River Tame and its tributaries River Rea and River Cole – one of the closest main rivers is the Severn , approximately 20 miles (32 km) west of
12947-413: The use of energy to power them. The system of alternately sending jets of steam, then cold water into the cylinder meant that the walls of the cylinder were alternately heated, then cooled with each stroke. Each charge of steam introduced would continue condensing until the cylinder approached working temperature once again. So at each stroke part of the potential of the steam was lost. In 1763, James Watt
13068-423: The use of the crank, Watt was obliged to come up with another solution. He adopted the epicyclic sun and planet gear system suggested by an employee William Murdoch , only later reverting, once the patent rights had expired, to the more familiar crank seen on most engines today. The main wheel attached to the crank was large and heavy, serving as a flywheel which, once set in motion, by its momentum maintained
13189-409: The vacuum principle. It employed a cylinder containing a movable piston connected by a chain to one end of a rocking beam that worked a mechanical lift pump from its opposite end. At the bottom of each stroke, steam was allowed to enter the cylinder below the piston. As the piston rose within the cylinder, drawn upward by a counterbalance, it drew in steam at atmospheric pressure. At the top of the stroke
13310-422: The warm condensate was drawn off from the condenser and sent to a hot well by a vacuum pump, which also helped to evacuate the steam from under the power cylinder. The still-warm condensate was recycled as feedwater for the boiler. Watt's next improvement to the Newcomen design was to seal the top of the cylinder and surround the cylinder with a jacket. Steam was passed through the jacket before being admitted below
13431-817: The wider metropolitan area with a population numbering 3,558,916 in 2019 according to Eurostat. Around 305,688 or 26.7% of the population in 2021 were foreign-born , making it a city with one of the largest migrant populations in Europe . According to figures from the 2021 census, 48.7% of the population was White (42.9% White British , 1.5% White Irish , 4.0% Other White , 0.2% Roma , 0.1% Irish Traveller ), 31% were Asian (17.0% Pakistani , 5.8% Indian , 4.2% Bangladeshi , 1.1% Chinese , 2.9% Other Asian ), 10.9% were Black (5.8% African , 3.9% Caribbean , 1.2% Other Black ), 4.8% of Mixed race (2.2% White and Black Caribbean, 0.4% White and Black African, 1.1% White and Asian, 1.1% Other Mixed), 1.7% Arab and 4.6% of Other ethnic heritage. The 2021 census showed 26.7% of
13552-441: The working cylinder of a Newcomen engine. This gave the Watt engine greater efficiency than the Newcomen engine, reducing the amount of coal consumed while doing the same amount of work as a Newcomen engine. In Watt's design, the cold water was injected only into the condensation chamber. This type of condenser is known as a jet condenser . The condenser is located in a cold water bath below the cylinder. The volume of water entering
13673-487: Was also working that summer. Watt had tried unsuccessfully for several years to obtain an accurately bored cylinder for his steam engines, and was forced to use hammered iron, which was out of round and caused leakage past the piston. Joseph Wickham Roe stated in 1916: "When [John] Smeaton saw the first engine he reported to the Society of Engineers that 'Neither the tools nor the workmen existed who could manufacture such
13794-442: Was cooled by a spray of water, which caused the steam to condense, forming a partial vacuum in the cylinder. Atmospheric pressure on the top of the piston pushed it down, lifting the work object. James Watt noticed that it required significant amounts of heat to warm the cylinder back up to the point where steam could enter the cylinder without immediately condensing. When the cylinder was warm enough that it became filled with steam
13915-418: Was driven by different factors. Instead of the economies of scale of a low-paid, unskilled workforce producing a single bulk commodity such as cotton or wool in large, mechanised units of production, Birmingham's industrial development was built on the adaptability and creativity of a highly paid workforce with a strong division of labour , practising a broad variety of skilled specialist trades and producing
14036-560: Was expensive, particularly Cornwall , for which three engines were ordered in 1777, for the Wheal Busy , Ting Tang , and Chacewater mines. The first Watt engines were atmospheric pressure engines, like the Newcomen engine but with the condensation taking place separate from the cylinder. Driving the engines using both low pressure steam and a partial vacuum raised the possibility of reciprocating engine development. An arrangement of valves could alternately admit low pressure steam to
14157-415: Was not a true speed controller because it could not hold a set speed in response to a change in load. These improvements allowed the steam engine to replace the water wheel and horses as the main sources of power for British industry, thereby freeing it from geographical constraints and becoming one of the main drivers in the Industrial Revolution . Watt was also concerned with fundamental research on
14278-514: Was undesirable for many applications, in particular pumping. Watt therefore limited the expansion to a ratio of 1:2 (i.e. the steam supply was cut at half stroke). This increased the theoretical efficiency from 6.4% to 10.6%, with only a small variation in piston pressure. Watt did not use high pressure steam because of safety concerns. These improvements led to the fully developed version of 1776 that actually went into production. The separate condenser showed dramatic potential for improvements on
14399-654: Was used to pump water for the Kennet and Avon Canal ; on certain weekends throughout the year the modern pumps are switched off and the two steam engines at Crofton still perform this function. The oldest extant rotative steam engine, the Whitbread Engine (from 1785, the third rotative engine ever built), is located in the Powerhouse Museum in Sydney, Australia. A Boulton-Watt engine of 1788 may be found in
14520-399: Was very proud of his solution. Having the beam connected to the piston shaft by a means that applied force alternately in both directions also meant that it was possible to use the motion of the beam to turn a wheel. The simplest solution to transforming the action of the beam into a rotating motion was to connect the beam to a wheel by a crank , but because another party had patent rights on
14641-419: Was working as instrument maker at the University of Glasgow when he was assigned the job of repairing a model Newcomen engine and noted how inefficient it was. In 1765, Watt conceived the idea of equipping the engine with a separate condensation chamber, which he called a "condenser" . Because the condenser and the working cylinder were separate, condensation occurred without significant loss of heat from
#902097