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96-683: The Armed Police Battalion is a specialised combat unit of the Bangladesh Police . It is headquartered in Dhaka . The unit has 11 battalions under its command and the Special Security and Protection Battalion has two battalions. Airport Armed Police Battalion is responsible for protecting the Hazrat Shahjalal International Airport . The Armed Police Battalion was formed on 1 October 1975 as

192-635: A police commissioner was set up 1861, and on the recommendation of the commission of the Police Act (Act V of 1861), was passed by the British Parliament. Under this Act a police force was created in each province of British India, and placed under the control of the provincial government. The administration of the police force of a province was vested upon an officer styled as the Inspector-general of police . The administration of

288-660: A Liberation War Museum at the Rajarbagh police line in January 2017. After the emergence of Bangladesh as an independent country on 16 December 1971, the police force was recognised and assumed the role of a national police force. In January 2004, the Bangladesh Nationalist Party led government removed the boat from the police force badge because the boat is also the symbol of the former ruling party, Bangladesh Awami League . The police had been using

384-400: A better way could be found to remove the seed. Eli Whitney responded to the challenge by inventing the inexpensive cotton gin . A man using a cotton gin could remove seed from as much upland cotton in one day as would previously have taken two months to process, working at the rate of one pound of cotton per day. These advances were capitalised on by entrepreneurs , of whom the best known

480-520: A cottage industry under the putting-out system . Occasionally, the work was done in the workshop of a master weaver. Under the putting-out system, home-based workers produced under contract to merchant sellers, who often supplied the raw materials. In the off-season, the women, typically farmers' wives, did the spinning and the men did the weaving. Using the spinning wheel , it took anywhere from four to eight spinners to supply one handloom weaver. The flying shuttle , patented in 1733 by John Kay —with

576-670: A groundswell of enterprise and productivity transformed the economy in the 17th century, laying the foundations for the world's first industrial economy. Britain was already a nation of makers by the year 1700" and "the history of Britain needs to be rewritten". Eric Hobsbawm held that the Industrial Revolution began in Britain in the 1780s and was not fully felt until the 1830s or 1840s, while T. S. Ashton held that it occurred roughly between 1760 and 1830. Rapid adoption of mechanized textiles spinning occurred in Britain in

672-425: A major turning point in history, comparable only to humanity's adoption of agriculture with respect to material advancement. The Industrial Revolution influenced in some way almost every aspect of daily life. In particular, average income and population began to exhibit unprecedented sustained growth. Some economists have said the most important effect of the Industrial Revolution was that the standard of living for

768-421: A mechanised industry. Other inventors increased the efficiency of the individual steps of spinning (carding, twisting and spinning, and rolling) so that the supply of yarn increased greatly. Steam power was then applied to drive textile machinery. Manchester acquired the nickname Cottonopolis during the early 19th century owing to its sprawl of textile factories. Although mechanisation dramatically decreased

864-726: A more even thickness. The technology was developed with the help of John Wyatt of Birmingham . Paul and Wyatt opened a mill in Birmingham which used their rolling machine powered by a donkey. In 1743, a factory opened in Northampton with 50 spindles on each of five of Paul and Wyatt's machines. This operated until about 1764. A similar mill was built by Daniel Bourn in Leominster , but this burnt down. Both Lewis Paul and Daniel Bourn patented carding machines in 1748. Based on two sets of rollers that travelled at different speeds, it

960-609: A new group of innovations in what has been called the Second Industrial Revolution . These included new steel-making processes , mass production , assembly lines , electrical grid systems, the large-scale manufacture of machine tools, and the use of increasingly advanced machinery in steam-powered factories. The earliest recorded use of the term "Industrial Revolution" was in July 1799 by French envoy Louis-Guillaume Otto , announcing that France had entered

1056-406: A number of subsequent improvements including an important one in 1747—doubled the output of a weaver, worsening the imbalance between spinning and weaving. It became widely used around Lancashire after 1760 when John's son, Robert , invented the dropbox, which facilitated changing thread colors. Lewis Paul patented the roller spinning frame and the flyer-and- bobbin system for drawing wool to

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1152-496: A one-year-long training in the Bangladesh Police Academy as Outside Cadet Sub-Inspectors. After that they have partake in two years probationary period in different police units. After that they have been appointed as a full-fledged SIs in different units. Sergeants are recruited by Police Headquarters centrally. After appointment they undergo a one-year-long training course in the Bangladesh Police Academy, at

1248-410: A reverberatory furnace, coal or coke could be used as fuel. The puddling process continued to be used until the late 19th century when iron was being displaced by mild steel. Because puddling required human skill in sensing the iron globs, it was never successfully mechanised. Rolling was an important part of the puddling process because the grooved rollers expelled most of the molten slag and consolidated

1344-438: A simple, wooden framed machine that only cost about £6 for a 40-spindle model in 1792 and was used mainly by home spinners. The jenny produced a lightly twisted yarn only suitable for weft, not warp. The spinning frame or water frame was developed by Richard Arkwright who, along with two partners, patented it in 1769. The design was partly based on a spinning machine built by Kay, who was hired by Arkwright. For each spindle

1440-752: A specialized force of the Bangladesh Police through The Armed Police Battalion Ordinance 1979. Rapid Action Battalion was created under the same ordinance in 2006 through the Armed Police Battalions (Amendment) Act, 2003. Armed Police Battalion-6 was established in 1976 in Barisal originally as a river battalion. Armed Police Battalion-4 was raised in 1979 in Bogura. On 1 October 1981, the Armed Police Battalion-9

1536-625: A variety of cotton cloth, some of exceptionally fine quality. Cotton was a difficult raw material for Europe to obtain before it was grown on colonial plantations in the Americas. The early Spanish explorers found Native Americans growing unknown species of excellent quality cotton: sea island cotton ( Gossypium barbadense ) and upland green seeded cotton Gossypium hirsutum . Sea island cotton grew in tropical areas and on barrier islands of Georgia and South Carolina but did poorly inland. Sea island cotton began being exported from Barbados in

1632-493: A weight. The weights kept the twist from backing up before the rollers. The bottom rollers were wood and metal, with fluting along the length. The water frame was able to produce a hard, medium-count thread suitable for warp, finally allowing 100% cotton cloth to be made in Britain. Arkwright and his partners used water power at a factory in Cromford , Derbyshire in 1771, giving the invention its name. Samuel Crompton invented

1728-430: Is Arkwright. He is credited with a list of inventions, but these were actually developed by such people as Kay and Thomas Highs ; Arkwright nurtured the inventors, patented the ideas, financed the initiatives, and protected the machines. He created the cotton mill which brought the production processes together in a factory, and he developed the use of power—first horsepower and then water power—which made cotton manufacture

1824-534: Is a district community-policing cell in every district under the Superintendent of Police. The Additional SP or an ASP looks after the district community-policing cell. Secondly, in the police station level, there is a community policing cell with a full-time community policing officer (CPO), who coordinates the community policing activities in the police station jurisdiction. In 2016 Dhaka Metropolitan Police under DMP Commissioner Asaduzzaman Mia implemented

1920-606: The Bangladesh Public Service Commission (BPSC) through the competitive Bangladesh Civil Service the Bangladesh Police Academy as Probationary ASPs. After passing from the academy, they undergo an orientation training for six months in the district level as a probationer. After that they have been appointed as a full-fledged ASPs in different units. Sub-Inspectors are recruited by Police Headquarters centrally. They undergo

2016-593: The British Agricultural Revolution , to provide excess manpower and food; a pool of managerial and entrepreneurial skills; available ports, rivers, canals, and roads to cheaply move raw materials and outputs; natural resources such as coal, iron, and waterfalls; political stability and a legal system that supported business; and financial capital available to invest. Once industrialisation began in Great Britain, new factors can be added:

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2112-688: The Chittagong Hill Tracts Peace Accord . Bangladesh Police Details of policing activities, during the middle age are challenging to find. However, during the periods of the Bengal Sultanate , an official holding the position of Muhtasib used to perform the duties of policing. This person was the chief of police, in charge of public works, and the inspector of public ethics simultaneously. In urban areas, Kotwals were responsible for performing police duties. The policing system introduced by Sher Shah Suri

2208-639: The East India Company . The development of trade and the rise of business were among the major causes of the Industrial Revolution. Developments in law also facilitated the revolution, such as courts ruling in favour of property rights . An entrepreneurial spirit and consumer revolution helped drive industrialisation in Britain, which after 1800, was emulated in Belgium, the United States, and France. The Industrial Revolution marked

2304-637: The Mughal period, Kotwal emerged as an institution. A Fouzdar was appointed to every administrative unit of the government (district), under whom there were some artillery and cavalry forces. There was a disciplined police system during the Mughal period, though there was no professional police force like that in the British period. In the early stage of the Industrial Revolution , when England

2400-567: The beat policing Dhaka city. In this regard, each Police Station is divided into some police beats, and for each beat there is an assigned Beat Policing Officer for a tenure of 2 years. Since its first mission in Namibia in 1989, the Bangladesh Police has contributed to numerous UN peace-keeping missions . List of completed and present UNPOL and FPU Peacekeeping missions participated by Bangladesh Police: Bangladesh Police has been criticized for having political influence in all levels, and

2496-488: The spinning mule in 1779, so called because it is a hybrid of Arkwright's water frame and James Hargreaves 's spinning jenny in the same way that a mule is the product of crossbreeding a female horse with a male donkey . Crompton's mule was able to produce finer thread than hand spinning and at a lower cost. Mule-spun thread was of suitable strength to be used as a warp and finally allowed Britain to produce highly competitive yarn in large quantities. Realising that

2592-582: The technological and architectural innovations were of British origin. By the mid-18th century, Britain was the world's leading commercial nation, controlling a global trading empire with colonies in North America and the Caribbean. Britain had major military and political hegemony on the Indian subcontinent ; particularly with the proto-industrialised Mughal Bengal , through the activities of

2688-441: The 1650s. Upland green seeded cotton grew well on inland areas of the southern U.S. but was not economical because of the difficulty of removing seed, a problem solved by the cotton gin . A strain of cotton seed brought from Mexico to Natchez, Mississippi , in 1806 became the parent genetic material for over 90% of world cotton production today; it produced bolls that were three to four times faster to pick. The Age of Discovery

2784-453: The 1780s, and high rates of growth in steam power and iron production occurred after 1800. Mechanised textile production spread from Great Britain to continental Europe and the United States in the early 19th century, with important centres of textiles, iron and coal emerging in Belgium and the United States and later textiles in France. An economic recession occurred from the late 1830s to

2880-496: The Indian industry. Bar iron was the commodity form of iron used as the raw material for making hardware goods such as nails, wire, hinges, horseshoes, wagon tires, chains, etc., as well as structural shapes. A small amount of bar iron was converted into steel. Cast iron was used for pots, stoves, and other items where its brittleness was tolerable. Most cast iron was refined and converted to bar iron, with substantial losses. Bar iron

2976-480: The Industrial Revolution, thus causing the Great Divergence . Some historians, such as John Clapham and Nicholas Crafts , have argued that the economic and social changes occurred gradually and that the term revolution is a misnomer. This is still a subject of debate among some historians. Six factors facilitated industrialisation: high levels of agricultural productivity, such as that reflected in

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3072-677: The London model with some modifications when it organised the first Municipal Police Force, in 1833. In 1858, full control of the Indian Territory was taken over from the East India Company by the British government . The success of the London Police organised under Peel's Act of 1829 prompted the British government to reform the police system in the sub-continent in a similar way to British constabularies. With this end in view,

3168-577: The Scottish inventor James Beaumont Neilson in 1828, was the most important development of the 19th century for saving energy in making pig iron. By using preheated combustion air, the amount of fuel to make a unit of pig iron was reduced at first by between one-third using coke or two-thirds using coal; the efficiency gains continued as the technology improved. Hot blast also raised the operating temperature of furnaces, increasing their capacity. Using less coal or coke meant introducing fewer impurities into

3264-556: The Western European models in the late 19th century. The commencement of the Industrial Revolution is closely linked to a small number of innovations, beginning in the second half of the 18th century. By the 1830s, the following gains had been made in important technologies: In 1750, Britain imported 2.5 million pounds of raw cotton, most of which was spun and woven by the cottage industry in Lancashire . The work

3360-419: The attack on her husband. British Government has faced criticism for its aid to Bangladesh Police which could be used to suppress dissidents. Mohammad Harun-Ur-Rashid , Superintendent of Police, is the head of Dhaka Metropolitan Police (DMP) Tejgaon division. He has faced a number of controversies. On 3 November 2019, he kidnapped the wife and minor son of Showkat Aziz Russell, Chairperson of Amber group, for

3456-565: The boat in its symbol since the independence of Bangladesh. Bangladesh Police is headed by the Inspector General of Police (IGP), under whose command, Bangladesh Police is divided into several units. Subnational units Specialized units Specialized Battalions Specialized Team Police medals are awarded every year in the annual Police Week Parade. They are awarded both for bravery and service. Bangladesh Police Medal (BPM) The recruitment process differs according to

3552-410: The causes of crime, fear of crime and community issues. Bangladesh Police have been trying to implement this philosophy nationwide. The Police Reform Program (PRP), a UNDP funded project, has been providing Bangladesh Police with technical assistance to implement community-policing nationwide. Under the strategic partnership there are: The implementation partnership starts at the district level: There

3648-471: The coal do not migrate into the metal. This technology was applied to lead from 1678 and to copper from 1687. It was also applied to iron foundry work in the 1690s, but in this case the reverberatory furnace was known as an air furnace. (The foundry cupola is a different, and later, innovation.) Coke pig iron was hardly used to produce wrought iron until 1755–56, when Darby's son Abraham Darby II built furnaces at Horsehay and Ketley where low sulfur coal

3744-409: The coke pig iron he made was not suitable for making wrought iron and was used mostly for the production of cast iron goods, such as pots and kettles. He had the advantage over his rivals in that his pots, cast by his patented process, were thinner and cheaper than theirs. In 1750, coke had generally replaced charcoal in the smelting of copper and lead and was in widespread use in glass production. In

3840-467: The column of materials (iron ore, fuel, slag) flowing down the blast furnace more porous and did not crush in the much taller furnaces of the late 19th century. As cast iron became cheaper and widely available, it began being a structural material for bridges and buildings. A famous early example is the Iron Bridge built in 1778 with cast iron produced by Abraham Darby III. However, most cast iron

3936-495: The cost of cotton cloth, by the mid-19th century machine-woven cloth still could not equal the quality of hand-woven Indian cloth, in part because of the fineness of thread made possible by the type of cotton used in India, which allowed high thread counts. However, the high productivity of British textile manufacturing allowed coarser grades of British cloth to undersell hand-spun and woven fabric in low-wage India, eventually destroying

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4032-487: The cotton textile industry in Britain was 2.6% in 1760, 17% in 1801, and 22.4% in 1831. Value added by the British woollen industry was 14.1% in 1801. Cotton factories in Britain numbered approximately 900 in 1797. In 1760, approximately one-third of cotton cloth manufactured in Britain was exported, rising to two-thirds by 1800. In 1781, cotton spun amounted to 5.1 million pounds, which increased to 56 million pounds by 1800. In 1800, less than 0.1% of world cotton cloth

4128-427: The country. Steam engines made the use of higher-pressure and volume blast practical; however, the leather used in bellows was expensive to replace. In 1757, ironmaster John Wilkinson patented a hydraulic powered blowing engine for blast furnaces. The blowing cylinder for blast furnaces was introduced in 1760 and the first blowing cylinder made of cast iron is believed to be the one used at Carrington in 1768 that

4224-456: The eagerness of British entrepreneurs to export industrial expertise and the willingness to import the process. Britain met the criteria and industrialized starting in the 18th century, and then it exported the process to western Europe (especially Belgium, France, and the German states) in the early 19th century. The United States copied the British model in the early 19th century, and Japan copied

4320-607: The early 1840s when the adoption of the Industrial Revolution's early innovations, such as mechanised spinning and weaving, slowed as their markets matured; and despite the increasing adoption of locomotives, steamboats and steamships, and hot blast iron smelting . New technologies such as the electrical telegraph , widely introduced in the 1840s and 1850s in the United Kingdom and the United States, were not powerful enough to drive high rates of economic growth. Rapid economic growth began to reoccur after 1870, springing from

4416-465: The expiration of the Arkwright patent would greatly increase the supply of spun cotton and lead to a shortage of weavers, Edmund Cartwright developed a vertical power loom which he patented in 1785. In 1776, he patented a two-man operated loom. Cartwright's loom design had several flaws, the most serious being thread breakage. Samuel Horrocks patented a fairly successful loom in 1813. Horock's loom

4512-528: The first highly mechanised factory was John Lombe 's water-powered silk mill at Derby , operational by 1721. Lombe learned silk thread manufacturing by taking a job in Italy and acting as an industrial spy; however, because the Italian silk industry guarded its secrets closely, the state of the industry at that time is unknown. Although Lombe's factory was technically successful, the supply of raw silk from Italy

4608-400: The first successful cylinder for a Boulton and Watt steam engine in 1776, he was given an exclusive contract for providing cylinders. After Watt developed a rotary steam engine in 1782, they were widely applied to blowing, hammering, rolling and slitting. The solutions to the sulfur problem were the addition of sufficient limestone to the furnace to force sulfur into the slag as well as

4704-534: The general population in the Western world began to increase consistently for the first time in history, although others have said that it did not begin to improve meaningfully until the late 19th and 20th centuries. GDP per capita was broadly stable before the Industrial Revolution and the emergence of the modern capitalist economy, while the Industrial Revolution began an era of per-capita economic growth in capitalist economies. Economic historians agree that

4800-623: The human economy towards more widespread, efficient and stable manufacturing processes that succeeded the Agricultural Revolution . Beginning in Great Britain , the Industrial Revolution spread to continental Europe and the United States , from around 1760 to about 1820–1840. This transition included going from hand production methods to machines ; new chemical manufacturing and iron production processes;

4896-451: The increasing use of water power and steam power ; the development of machine tools ; and the rise of the mechanised factory system . Output greatly increased, and the result was an unprecedented rise in population and the rate of population growth . The textile industry was the first to use modern production methods, and textiles became the dominant industry in terms of employment, value of output, and capital invested. Many of

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4992-517: The iron industries during the Industrial Revolution was the replacement of wood and other bio-fuels with coal ; for a given amount of heat, mining coal required much less labour than cutting wood and converting it to charcoal , and coal was much more abundant than wood, supplies of which were becoming scarce before the enormous increase in iron production that took place in the late 18th century. In 1709, Abraham Darby made progress using coke to fuel his blast furnaces at Coalbrookdale . However,

5088-496: The late 19th century, and his expression did not enter everyday language until then. Credit for popularising the term may be given to Arnold Toynbee , whose 1881 lectures gave a detailed account of the term. Economic historians and authors such as Mendels, Pomeranz , and Kridte argue that proto-industrialisation in parts of Europe, the Muslim world , Mughal India , and China created the social and economic conditions that led to

5184-475: The level of position being recruited to, and direct entry (where an applicant does not have to start at the lowest level) is possible. The educational requirements increase with rank. A minimum bachelor's degree is required for Assistant Superintendent of Police, Sub-Inspector, and Sergeant, and for Constable, a Secondary School Certificate is required. Recruitment is conducted in the following three tiers: The Assistant Superintendent of Police (ASP) are recruited by

5280-530: The major decisions are taken under political conditions. Corruption is widespread among the law enforcement, with custody deaths and torture being prevalent. In 2016 January, Dhaka South City Corporation official was tortured by Dhaka Metropolitan Police members. In the same month a sub-inspector at DMP was accused of torturing and attempting to extort money from a Bangladesh Bank official. Bangladesh Police have been accused of being involved in crime including rape and murder. Bangladesh opposition party has accused

5376-467: The mass of hot wrought iron. Rolling was 15 times faster at this than a trip hammer . A different use of rolling, which was done at lower temperatures than that for expelling slag, was in the production of iron sheets, and later structural shapes such as beams, angles, and rails. The puddling process was improved in 1818 by Baldwyn Rogers, who replaced some of the sand lining on the reverberatory furnace bottom with iron oxide . In 1838 John Hall patented

5472-599: The number of cotton goods consumed in Western Europe was minor until the early 19th century. By 1600, Flemish refugees began weaving cotton cloth in English towns where cottage spinning and weaving of wool and linen was well established. They were left alone by the guilds who did not consider cotton a threat. Earlier European attempts at cotton spinning and weaving were in 12th-century Italy and 15th-century southern Germany, but these industries eventually ended when

5568-418: The onset of the Industrial Revolution is the most important event in human history since the domestication of animals and plants. The precise start and end of the Industrial Revolution is still debated among historians, as is the pace of economic and social changes . According to Cambridge historian Leigh Shaw-Taylor, Britain was already industrialising in the 17th century, and "Our database shows that

5664-695: The police in a district was placed under the Superintendent of Police . The Act is still in force throughout the sub-continent, and regulates the function of police in Bangladesh, as well as the other countries of the sub-continent. After partition of the sub-continent in 1947, the police force in Bangladesh was first named as the East Bengal Police, and then as the East Pakistan Police; however, it continued to function on

5760-571: The police of being used to suppress the opposition parities. The accountability of the police has been question by the media. 230 Police officers in Barisal Metropolitan Police created a collective bribe fund for promotions. Bangladesh Police had faced criticism after telling secular bloggers to self-censure after the Attacks on secularists in Bangladesh . Wife of Avijit Roy had accused Bangladesh Police of Inactivity during

5856-609: The purpose of extortion from Gulshan and shifted them to Narayanganj . He was removed from his post in Narayanganj after the incident came to light. He continued working at the post four days after his transfer came through. The Business Standard, a Bangladeshi newspaper, described him as a "case of police impunity". He made the news first on 6 July 2011 for assaulting Zainul Abdin Farroque , Bangladesh Nationalist Party politician, opposition whip, and member of parliament. He

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5952-501: The race to industrialise. In his 1976 book Keywords: A Vocabulary of Culture and Society , Raymond Williams states in the entry for "Industry": "The idea of a new social order based on major industrial change was clear in Southey and Owen , between 1811 and 1818, and was implicit as early as Blake in the early 1790s and Wordsworth at the turn of the [19th] century." The term Industrial Revolution applied to technological change

6048-646: The rank of Probationary Sergeant. After passing from the academy, they also undergo an orientation training of one year in the rank of probationer. Constables are recruited in the district level. They undergo a six-month-long training in the Police Training Centre as a Trainee Recruit Constable career (TRC). The main training institution of the Bangladesh Police is the Bangladesh Police Academy , established in 1912 in Sardah. The Police Staff College , which trains officers from ASP to DIG in-service,

6144-688: The same lines as during the British rule. In the Bangladesh Liberation War , Bengali-speaking police officers participated with the citizens, leading to deaths from most ranks, fighting with .303 rifles against the Pakistani Army . The resistance by the Bengali members of police at Rajarbagh and in Kushtia is considered the first chapter of armed struggles during the Bangladesh Liberation War . Bangladesh Police founded

6240-418: The slag from almost 50% to around 8%. Puddling became widely used after 1800. Up to that time, British iron manufacturers had used considerable amounts of iron imported from Sweden and Russia to supplement domestic supplies. Because of the increased British production, imports began to decline in 1785, and by the 1790s Britain eliminated imports and became a net exporter of bar iron. Hot blast , patented by

6336-457: The smelting and refining of iron, coal and coke produced inferior iron to that made with charcoal because of the coal's sulfur content. Low sulfur coals were known, but they still contained harmful amounts. Conversion of coal to coke only slightly reduces the sulfur content. A minority of coals are coking. Another factor limiting the iron industry before the Industrial Revolution was the scarcity of water power to power blast bellows. This limitation

6432-496: The students left while Abu Sayed remained. The police were firing rubber bullets from the opposite direction. Sayed was subsequently shot four times by a police officer. He died before being taken to hospital. Industrial Revolution The Industrial Revolution , sometimes divided into the First Industrial Revolution and Second Industrial Revolution , was a period of global transition of

6528-528: The supply of cotton was cut off. The Moors in Spain grew, spun, and wove cotton beginning around the 10th century. British cloth could not compete with Indian cloth because India's labour cost was approximately one-fifth to one-sixth that of Britain's. In 1700 and 1721, the British government passed Calico Acts to protect the domestic woollen and linen industries from the increasing amounts of cotton fabric imported from India. The demand for heavier fabric

6624-415: The use of low sulfur coal. The use of lime or limestone required higher furnace temperatures to form a free-flowing slag. The increased furnace temperature made possible by improved blowing also increased the capacity of blast furnaces and allowed for increased furnace height. In addition to lower cost and greater availability, coke had other important advantages over charcoal in that it was harder and made

6720-406: The use of roasted tap cinder ( iron silicate ) for the furnace bottom, greatly reducing the loss of iron through increased slag caused by a sand lined bottom. The tap cinder also tied up some phosphorus, but this was not understood at the time. Hall's process also used iron scale or rust which reacted with carbon in the molten iron. Hall's process, called wet puddling , reduced losses of iron with

6816-410: The water frame used a series of four pairs of rollers, each operating at a successively higher rotating speed, to draw out the fibre which was then twisted by the spindle. The roller spacing was slightly longer than the fibre length. Too close a spacing caused the fibres to break while too distant a spacing caused uneven thread. The top rollers were leather-covered and loading on the rollers was applied by

6912-505: Was 7,800 tons and coke cast iron was 250,000 tons. In 1750, the UK imported 31,200 tons of bar iron and either refined from cast iron or directly produced 18,800 tons of bar iron using charcoal and 100 tons using coke. In 1796, the UK was making 125,000 tons of bar iron with coke and 6,400 tons with charcoal; imports were 38,000 tons and exports were 24,600 tons. In 1806 the UK did not import bar iron but exported 31,500 tons. A major change in

7008-407: Was a means of decarburizing molten pig iron by slow oxidation in a reverberatory furnace by manually stirring it with a long rod. The decarburized iron, having a higher melting point than cast iron, was raked into globs by the puddler. When the glob was large enough, the puddler would remove it. Puddling was backbreaking and extremely hot work. Few puddlers lived to be 40. Because puddling was done in

7104-569: Was arrested in Sylhet for operating a child prostitution ring with 12 year old girls. In July 2020, Armed Police Battalion was tasked with providing security in Rohingya refugee camps in Cox's Bazar District and reduce crimes committed by the refugees. Two special battalions, Armed Police Battalion-14 and Armed Police Battalion-16, were created for the task with 1176 personnel. Armed Police Battalion-14

7200-606: Was available (and not far from Coalbrookdale). These furnaces were equipped with water-powered bellows, the water being pumped by Newcomen steam engines . The Newcomen engines were not attached directly to the blowing cylinders because the engines alone could not produce a steady air blast. Abraham Darby III installed similar steam-pumped, water-powered blowing cylinders at the Dale Company when he took control in 1768. The Dale Company used several Newcomen engines to drain its mines and made parts for engines which it sold throughout

7296-399: Was awarded and promoted for the assault on Zainul . In November 2019, a video of him went viral, where he and other police officers were seen attacking a referee in a friendly football match. On 16 July 2024, between 2:30 and 3:00 pm, quota reform protesters and police clashed in front of Begum Rokeya University . Police fired tear gas and baton-charged to disperse students. Most of

7392-663: Was becoming more common by the late 1830s, as in Jérôme-Adolphe Blanqui 's description in 1837 of la révolution industrielle . Friedrich Engels in The Condition of the Working Class in England in 1844 spoke of "an industrial revolution, a revolution which at the same time changed the whole of civil society". Although Engels wrote his book in the 1840s, it was not translated into English until

7488-414: Was converted to wrought iron. Conversion of cast iron had long been done in a finery forge . An improved refining process known as potting and stamping was developed, but this was superseded by Henry Cort 's puddling process. Cort developed two significant iron manufacturing processes: rolling in 1783 and puddling in 1784. Puddling produced a structural grade iron at a relatively low cost. Puddling

7584-566: Was cut off to eliminate competition. In order to promote manufacturing, the Crown paid for models of Lombe's machinery which were exhibited in the Tower of London . Parts of India, China, Central America, South America, and the Middle East have a long history of hand manufacturing cotton textiles, which became a major industry sometime after 1000 AD. In tropical and subtropical regions where it

7680-403: Was designed by John Smeaton . Cast iron cylinders for use with a piston were difficult to manufacture; the cylinders had to be free of holes and had to be machined smooth and straight to remove any warping. James Watt had great difficulty trying to have a cylinder made for his first steam engine. In 1774 Wilkinson invented a precision boring machine for boring cylinders. After Wilkinson bored

7776-559: Was done by hand in workers' homes or occasionally in master weavers' shops. Wages in Lancashire were about six times those in India in 1770 when overall productivity in Britain was about three times higher than in India. In 1787, raw cotton consumption was 22 million pounds, most of which was cleaned, carded, and spun on machines. The British textile industry used 52 million pounds of cotton in 1800, which increased to 588 million pounds in 1850. The share of value added by

7872-595: Was established in 2000 in Dhaka . Bangladesh Police also maintains Police Training Centre (PTC) in Tangail , Rangpur , Khulna and Noakhali . The Detective Training School was established in 1962 in Dhaka. Moreover, there are in-service training centres in different districts. In Bangladesh police, community policing is an organisation with the aims of promoting community, government and police partnerships, proactive problem solving, and community engagement to address

7968-737: Was established in 2016 and Armed Police Battalion-16 was established in 2019. The unit has faced accusations of violating human rights at the camp by the refugees and in a report by the Human Rights Watch . The accusations against the Armed Police Battalion included extortion, and torture. In January 2023, the government of Bangladesh announced plans to deploy Armed Police Battalion-18, Armed Police Battalion-19, and Armed Police Battalion-20 in Chittagong Hill Tracts in camps vacated by Bangladesh Army under

8064-671: Was established to provide security to VIPs of the government and foreign diplomats. Officers from the Armed Police Battalion have received training at the National Security Guard Centre in India as a part of a government plan in the aftermath of the July 2016 Dhaka attack to form a commando units in every police range and metropolitan area in Bangladesh . In January 2019, sub-inspector of Armed Police Battalion-7

8160-628: Was established. It was moved to Khagrachar in 1987. It was moved to Barisal in 1989, Bilaichari in 1993, Khulna in 1996, Mohalchari in 2000, Uttara in 2003, and finally settled in Chittagong on 5 October 2009. Armed Police Battalion-3 was established 17 July 2006 in Khulna. In June 2010, Armed Police Battalion was deployed to Hazrat Shahjalal International Airport. On 21 June 2011 Armed Police Battalion launched its first all women personal unit. On 26 December, Special Security and Protection Battalion

8256-530: Was facing grave crisis due to socio-economic transformation, the necessity of an effective organised police service was keenly felt. Sir Robert Peel , then the Prime Minister, introduced a bill in the British Parliament in 1829 which created an organised civil police in London. The success of the London police in controlling social disorder and crime was admired by not only the people of England but also of European and American countries: New York city copied

8352-544: Was followed by a period of colonialism beginning around the 16th century. Following the discovery of a trade route to India around southern Africa by the Portuguese, the British founded the East India Company , along with smaller companies of different nationalities which established trading posts and employed agents to engage in trade throughout the Indian Ocean region. One of the largest segments of this trade

8448-581: Was further organised during the period of Emperor Akbar : the Emperor organised his administrative structure introducing Fouzdari (the principal representative of the Emperor), Mir Adal and Kazi (the head of judicial department), and Kotwal (the chief police official of larger cities). This system was effective in maintaining the law and order in cities, and was implemented in Dhaka . Many district sadar police stations are still called Kotwali police stations. In

8544-569: Was grown, most was grown by small farmers alongside their food crops and was spun and woven in households, largely for domestic consumption. In the 15th century, China began to require households to pay part of their taxes in cotton cloth. By the 17th century, almost all Chinese wore cotton clothing. Almost everywhere cotton cloth could be used as a medium of exchange . In India, a significant amount of cotton textiles were manufactured for distant markets, often produced by professional weavers. Some merchants also owned small weaving workshops. India produced

8640-479: Was improved by Richard Roberts in 1822, and these were produced in large numbers by Roberts, Hill & Co. Roberts was additionally a maker of high-quality machine tools and a pioneer in the use of jigs and gauges for precision workshop measurement. The demand for cotton presented an opportunity to planters in the Southern United States, who thought upland cotton would be a profitable crop if

8736-660: Was in cotton textiles, which were purchased in India and sold in Southeast Asia , including the Indonesian archipelago where spices were purchased for sale to Southeast Asia and Europe. By the mid-1760s, cloth was over three-quarters of the East India Company's exports. Indian textiles were in demand in the North Atlantic region of Europe where previously only wool and linen were available; however,

8832-400: Was later used in the first cotton spinning mill . In 1764, in the village of Stanhill, Lancashire, James Hargreaves invented the spinning jenny , which he patented in 1770. It was the first practical spinning frame with multiple spindles. The jenny worked in a similar manner to the spinning wheel, by first clamping down on the fibres, then by drawing them out, followed by twisting. It was

8928-437: Was made by the bloomery process, which was the predominant iron smelting process until the late 18th century. In the UK in 1720, there were 20,500 tons of cast iron produced with charcoal and 400 tons with coke. In 1750 charcoal iron production was 24,500 and coke iron was 2,500 tons. In 1788, the production of charcoal cast iron was 14,000 tons while coke iron production was 54,000 tons. In 1806, charcoal cast iron production

9024-419: Was met by a domestic industry based around Lancashire that produced fustian , a cloth with flax warp and cotton weft . Flax was used for the warp because wheel-spun cotton did not have sufficient strength, but the resulting blend was not as soft as 100% cotton and was more difficult to sew. On the eve of the Industrial Revolution, spinning and weaving were done in households, for domestic consumption, and as

9120-413: Was overcome by the steam engine. Use of coal in iron smelting started somewhat before the Industrial Revolution, based on innovations by Clement Clerke and others from 1678, using coal reverberatory furnaces known as cupolas. These were operated by the flames playing on the ore and charcoal or coke mixture, reducing the oxide to metal. This has the advantage that impurities (such as sulphur ash) in

9216-425: Was produced on machinery invented in Britain. In 1788, there were 50,000 spindles in Britain, rising to 7 million over the next 30 years. The earliest European attempts at mechanised spinning were with wool; however, wool spinning proved more difficult to mechanise than cotton. Productivity improvement in wool spinning during the Industrial Revolution was significant but far less than that of cotton. Arguably

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