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Marc Isambard Brunel

Sir Marc Isambard Brunel FRS FRSE (/brˈnɛl/, French: [maʁk izɑ̃baʁ bʁynɛl]; 25 April 1769 – 12 December 1849) was a French-British engineer[1] who is most famous for the work he did in Britain.[2] He constructed the Thames Tunnel and was the father of Isambard Kingdom Brunel.

Sir Marc Isambard Brunel

Sir Marc Isambard Brunel,
by James Northcote
Born
Marc Isambard Brunel

(1769-04-25)25 April 1769
Died12 December 1849(1849-12-12) (aged 80)
Resting placeKensal Green Cemetery
Nationality
  • French (1769–1796)
  • American (1796–1849)
OccupationEngineer
Known forThames Tunnel
Spouse
(m. 1799)
Children
Military career
Allegiance Kingdom of France
Service/branchFrench Navy
Years of service1786–1792
Bust of Marc Isambard Brunel, Science Museum, London

Born in France, Brunel fled to the United States during the French Revolution. In 1796, he was appointed Chief Engineer of New York City. He moved to London in 1799, where he married Sophia Kingdom. In addition to the construction of the Thames Tunnel, his work as a mechanical engineer included the design of machinery to automate the production of pulley blocks for the Royal Navy.

Brunel preferred the given name Isambard, but is generally known to history as Marc to avoid confusion with his more famous son.

Early life in France

Brunel was the second son of Jean Charles Brunel and Marie-Victoire Lefebvre. Jean Charles was a prosperous farmer in Hacqueville, Normandy, and Marc was born on the family farm. It was customary for the first son to inherit the farm and the second son to enter the priesthood. His father therefore started Marc on a classical education, but he showed no liking for Greek or Latin and instead showed himself proficient in drawing and mathematics. He was also very musical from an early age.

At the age of eleven he was sent to a seminary in Rouen. The superior of the seminary allowed him to learn carpentry, and he soon achieved the standards of a cabinetmaker. He also sketched ships in the local harbour. As he showed no desire to become a priest, his father sent him to stay with relatives in Rouen, where a family friend tutored him on naval matters. In 1786, as a result of this tuition, Marc became a naval cadet on a French frigate and during his service visited the West Indies several times. He made an octant for himself from brass and ivory,[3] and used it during his service.[4]

In 1789, during Brunel's service abroad, the French Revolution began. In January 1792 Brunel's frigate paid off its crew, and Brunel returned to live with his relatives in Rouen. He was a Royalist sympathiser, as were most of the inhabitants of Normandy. In January 1793, whilst visiting Paris during the trial of Louis XVI, Brunel unwisely publicly predicted the demise of Robespierre, one of the leaders of the Revolution. He was lucky to get out of Paris with his life, and returned to Rouen. However, it was evident that he would have to leave France. During his stay in Rouen, Brunel had met Sophia Kingdom, a young English woman who was an orphan and was working as a governess. He was forced to leave her behind when he fled to Le Havre and boarded the American ship Liberty, bound for New York.[4]

United States

Brunel arrived in New York on 6 September 1793, and he subsequently travelled to Philadelphia and Albany. He got involved in a scheme to link the Hudson River by canal with Lake Champlain, and also submitted a design for the new Capitol building to be built in Washington. The judges were very impressed with the design, but it was not selected.[5][6]

In 1796, after taking American citizenship, Brunel was appointed Chief Engineer of the city of New York. He designed various houses, docks, commercial buildings, an arsenal, and a cannon factory. No official records exist of the projects that he carried out in New York, as it seems likely that the documents were destroyed in the New York Draft Riots of 1863.[5]

In 1798, during a dinner conversation, Brunel learnt of the difficulties that the Royal Navy had in obtaining the 100,000 pulley blocks that it needed each year. Each of these was made by hand. Brunel quickly produced an outline design of a set of machines that would automate their production. He decided to sail to England and put his invention before the Admiralty. He sailed for England on 7 February 1799 with a letter of introduction to the Navy Minister, and on 7 March his ship, Halifax, landed at Falmouth.[5]

Britain

Whilst Brunel had been in the United States, Sophia Kingdom had remained in Rouen and during the Reign of Terror, she was arrested as an English spy and daily expected to be executed. She was only saved by the fall of Robespierre in June 1794. In April 1795 Kingdom was able to leave France and travel to London.[7]

When Brunel arrived from the United States, he immediately travelled to London and made contact with Kingdom. They were married on 1 November 1799 at St Andrew, Holborn. In 1801 she gave birth to their first child, a daughter, Sophia;[8] in 1804 their second daughter Emma; and in 1806 their son Isambard Kingdom, who became a great engineer.[7] Isambard Kingdom grew up in Lindsey House in Chelsea, London.

 
One multiple- and one single-sheave pulley block for rigging on a sailing ship

During the summer of 1799 Brunel was introduced to Henry Maudslay, a talented engineer who had worked for Joseph Bramah, and had recently started his own business. Maudslay made working models of the machines for making pulley blocks, and Brunel approached Samuel Bentham, the Inspector General of Naval Works. In April 1802 Bentham recommended the installation of Brunel's block-making machinery at Portsmouth Block Mills. Brunel's machine could be operated by unskilled workers, at ten times the previous rate of production.[9] Altogether 45 machines were installed at Portsmouth, and by 1808 the plant was producing 130,000 blocks per year. Unfortunately for Brunel, the Admiralty vacillated over payment, despite the fact that Brunel had spent more than £2,000 of his own money on the project. In August 1808 they agreed to pay £1,000 on account, and two years later they consented to a payment of just over £17,000.[7]

Brunel was a talented mechanical engineer, and did much to develop sawmill machinery, undertaking contracts for the British Government at Chatham and Woolwich dockyards, building on his experience at the Portsmouth Block Mills. He built a sawmill at Battersea, London (burnt down in 1814 and rebuilt by 1816), which was designed to produce veneers, and he also designed sawmills for entrepreneurs. He also developed machinery for mass-producing soldiers' boots, but before this could reach full production, demand ceased due to the end of the Napoleonic Wars. Brunel was made a Fellow of the Royal Society in 1814. In 1828, he was elected a foreign member of the Royal Swedish Academy of Sciences. Brunel was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1834.[10] In 1845 he was elected an Honorary Fellow of the Royal Society of Edinburgh.[11]

Debtors' prison

Brunel several times became involved in unprofitable projects. As a consequence, by the beginning of 1821 he was deep in debt, and in May of that year he was tried and committed to the King's Bench Prison, a debtors' prison in Southwark. Prisoners in a debtors' prison were allowed to have their family with them, and Sophia accompanied him. Brunel spent 88 days incarcerated. As time passed with no prospect of gaining release, Brunel began to correspond with Alexander I of Russia about the possibility of moving with his family to St Petersburg to work for the Tsar. As soon as it was learnt that Britain was likely to lose such an eminent engineer as Brunel, influential figures, such as the Duke of Wellington, began to press for government intervention. The government granted £5,000 to clear Brunel's debts on condition that he abandon any plans to go to Russia. As a result, Brunel was released from prison in August.[12]

Thames Tunnel

 
Inside the Thames Tunnel during construction, 1830

In 1805 the Thames Archway Company was formed with the intention of driving a tunnel beneath the Thames between Rotherhithe and Limehouse. Richard Trevithick was engaged by the company to construct the tunnel. He used Cornish miners to work on the tunnel. In 1807 the tunnel encountered quicksand and conditions became difficult and dangerous. Eventually the tunnel was abandoned after more than 1,000 feet had been completed, and expert opinion, led by William Jessop, was that such a tunnel was impracticable.[13]

Brunel had already drawn up plans for a tunnel under the River Neva in Russia, but this scheme never came to fruition. In 1818 Brunel had patented a tunnelling shield. This was a reinforced shield of cast iron in which miners would work in separate compartments, digging at the tunnel-face. Periodically the shield would be driven forward by large jacks, and the tunnel surface behind it would be lined with brick. It is claimed that Brunel found the inspiration for his tunnelling shield from the shipworm, Teredo navalis, which has its head protected by a hard shell whilst it bores through ships' timbers. Brunel's invention provided the basis for subsequent tunnelling shields used to build the London Underground system and many other tunnels. Brunel was so convinced that he could use such a tunnelling shield to dig a tunnel under the Thames, that he wrote to every person of influence who might be interested. At last in February 1824 a meeting was held and 2,128 shares at £50 each were subscribed for. In June 1824 the Thames Tunnel Company was incorporated by royal assent. The tunnel was intended for horse-drawn traffic.[13]

 
Diagram of the tunnelling shield used to construct the Thames Tunnel

Work began in February 1825, by sinking a 50 feet (15 m) diameter vertical shaft on the Rotherhithe bank. This was done by constructing a 50 feet (15 m) diameter metal ring, upon which a circular brick tower was built. As the tower rose in height, its weight forced the ring into the ground, and at the same time workmen excavated the earth in the centre of the ring. This vertical shaft was completed in November 1825, and the tunnelling shield, which had been manufactured at Lambeth by Henry Maudslay's company, was then assembled at the bottom. Maudslay also supplied the steam powered pumps for the project. The shield was rectangular in cross section, and consisted of twelve frames, side by side, each of which could be moved forward independently of the others. Each frame contained three compartments, one above the other, each big enough for one man to excavate the tunnel face, and the whole frame accommodated 36 miners. When enough material had been removed from the tunnel face, the frame was moved forward by large jacks. As the shield moved forward, bricklayers followed, lining the walls. The tunnel required over 7,500,000 bricks.[13]

Problems

Brunel was assisted in his work by his son, Isambard Kingdom Brunel, now 18 years old. Brunel had planned the tunnel to pass no more than fourteen feet below the riverbed at its lowest point. This caused problems later. Another problem that hindered Brunel was that William Smith, the chairman of the company, thought that the tunnelling shield was an unnecessary luxury, and that the tunnel could be made more cheaply by traditional methods. He wanted Brunel replaced as Chief Engineer and constantly tried to undermine his position. Fortunately the shield quickly proved its worth. During the tunnelling both Brunel and his assistant engineer suffered ill health and for a while Isambard had to bear the whole burden of the work.[14]

There were several instances of flooding at the tunnel face due to its nearness to the bed of the river, and in May 1827 it was necessary to plug an enormous hole that appeared on the riverbed. Finally the resources of the Thames Tunnel Company were consumed, and despite efforts to raise more money, the tunnel was sealed up in August 1828. Brunel resigned from his position, frustrated by the continued opposition from the chairman. He undertook various civil engineering projects, including helping his son, Isambard, with his design of the Clifton Suspension Bridge.[14]

In March 1832 William Smith was deposed as chairman of the Thames Tunnel Company. He had been a thorn in Brunel's side throughout the project. In 1834 the government agreed a loan of £246,000 to the Thames Tunnel Company. The old 80-ton tunnelling shield was removed and replaced by a new improved 140-ton shield consisting of 9,000 parts that had to be fitted together underground. Tunnelling was resumed but there were still instances of flooding in which the pumps were overwhelmed. Miners were affected by the constant influx of polluted water, and many fell ill. As the tunnel approached the Wapping shore, work began on sinking a vertical shaft similar to the Rotherhithe one. This began in 1840 and took thirteen months to complete.[15]

On 24 March 1841 Brunel was knighted by the young Queen Victoria. This was at the suggestion of Prince Albert who had shown keen interest in the progress of the tunnel. The tunnel opened on the Wapping side of the river on 1 August 1842. On 7 November 1842 Brunel suffered a stroke that paralysed his right side for a time. The Thames Tunnel finally officially opened on 25 March 1843 and Brunel, despite ill health, took part in the opening ceremony. Within 15 weeks of opening, 1,000,000 people visited the tunnel. On 26 July 1843 Queen Victoria and Prince Albert visited. Although intended for horse-drawn traffic, the tunnel remained pedestrian only.[15]

Later developments

In 1865 the East London Railway Company purchased the Thames Tunnel for £200,000 and four years later the first trains passed through it. Subsequently, the tunnel became part of the London Underground system, and remains in use today, as part of the East London Line of London Overground.[16]

The engine house in Rotherhithe was taken over by a charitable trust in 1975 and transformed into the Brunel Museum in 2006.

Subsequent life

 
Brunel family grave in Kensal Green Cemetery.

After the completion of the Thames Tunnel, his greatest achievement, Brunel was in poor health. He never again accepted major commissions, although he did help his son, Isambard, on various projects. He was proud of his son's achievements, and was present at the launch of the SS Great Britain in Bristol on 19 July 1843. In 1845 Brunel suffered another, more severe stroke and was almost totally paralysed on his right side. On 12 December 1849, Brunel died at the age of 80, and his remains were interred in Kensal Green Cemetery in London. His wife, Sophia, was subsequently interred in the same plot, followed by their son, Isambard, just 10 years later.[16]

References

Citations

  1. ^ "Sir Marc Isambard Brunel | French-British engineer". Encyclopedia Britannica.
  2. ^ Rolt 1957, p. 6.
  3. ^ Brunel (1822).
  4. ^ a b Bagust (2006), pp. 11–16.
  5. ^ a b c Bagust (2006), pp. 17–21.
  6. ^ Kentley, Hulse & Elton (2006), pp. 15–16.
  7. ^ a b c Bagust (2006), pp. 22–50.
  8. ^ Baptism Register accounts as baptism 27.1.01
  9. ^ Gilbert (1965), pp. 4–6.
  10. ^ American Academy of Arts and Sciences, p. 73.
  11. ^ Waterston & Shearer (2006), p. 131.
  12. ^ Bagust (2006), pp. 51–57.
  13. ^ a b c Bagust (2006), pp. 62–70.
  14. ^ a b Bagust (2006), pp. 71–80.
  15. ^ a b Bagust (2006), pp. 87–96.
  16. ^ a b Bagust (2006), pp. 97–100.

Sources

  • American Academy of Arts and Sciences. Book of Members, 1780–present (PDF). Retrieved 7 November 2017.
  • Bagust, Harold (2006). The Greater Genius? A biography of Marc Isambard Brunel. Hersham: Ian Allan Publishing. ISBN 0-7110-3175-4. OCLC 255313889.
  • Brunel, Sir Marc Isambard (19 February 1822). "Concerning Isambard Kingdom Brunel and Breguet, Breguet's friendship and instruction, entry to l'Ecole Polytechnique, Franceur, Isambard Kingdom Brunel and holidays, appreciation of the Breguets" (in French). Letter to Louis Antoine Breguet. University of Bristol Library Special Collections. DM1277/4. Retrieved 7 November 2017.
  • Gilbert, Keith Reginald (1965). The Portsmouth Block-making Machinery: A Pioneering Enterprise in Mass Production. London: H.M. Stationery Office.
  • Kentley, Eric; Hulse, Robert; Elton, Julia (2006). The Brunel's Tunel. Institution of Civil Engineers. ISBN 0-9504361-2-7.
  • Rolt, L T C (1957). Isambard Kingdom Brunel. Longman Group.
  • Waterston, C D; Shearer, A Macmillan (July 2006). (PDF). Vol. Part I, A–J. Royal Society of Edinburgh. ISBN 0-902-198-84-X. Archived from the original (PDF) on 4 October 2006. Retrieved 7 November 2017.

Further reading

  • Coad, Jonathan (2005). The Portsmouth Block Mills : Bentham, Brunel and the start of the Royal Navy's Industrial Revolution. ISBN 1-873592-87-6.
  • Roe, Joseph Wickham (1916). English and American Tool Builders. New Haven, Connecticut: Yale University Press. LCCN 16011753. Reprinted by McGraw-Hill, New York and London, 1926 (LCCN 27-24075); and by Lindsay Publications, Inc., Bradley, Illinois, (ISBN 978-0-917914-73-7).

External links

  • The Brunel Institute – Collaborative venture between the SS Great Britain Trust and the University of Bristol. Housed alongside the SS Great Britain at Bristol it includes the National Brunel Collection.
  • The Brunel Museum – Based in Rotherhithe, London the museum is housed in the building that contained the pumps to keep the Thames Tunnel dry.

marc, isambard, brunel, american, football, quarterback, mark, brunell, frse, french, maʁk, izɑ, baʁ, bʁynɛl, april, 1769, december, 1849, french, british, engineer, most, famous, work, britain, constructed, thames, tunnel, father, isambard, kingdom, brunel, f. For the American football quarterback see Mark Brunell Sir Marc Isambard Brunel FRS FRSE b r uː ˈ n ɛ l French maʁk izɑ baʁ bʁynɛl 25 April 1769 12 December 1849 was a French British engineer 1 who is most famous for the work he did in Britain 2 He constructed the Thames Tunnel and was the father of Isambard Kingdom Brunel Sir Marc Isambard BrunelFRS FRSESir Marc Isambard Brunel by James NorthcoteBornMarc Isambard Brunel 1769 04 25 25 April 1769Hacqueville Normandy FranceDied12 December 1849 1849 12 12 aged 80 Westminster London EnglandResting placeKensal Green CemeteryNationalityFrench 1769 1796 American 1796 1849 OccupationEngineerKnown forThames TunnelSpouseSophia Kingdom m 1799 wbr ChildrenSophieEmmaIsambardMilitary careerAllegiance Kingdom of FranceService wbr branchFrench NavyYears of service1786 1792Bust of Marc Isambard Brunel Science Museum London Born in France Brunel fled to the United States during the French Revolution In 1796 he was appointed Chief Engineer of New York City He moved to London in 1799 where he married Sophia Kingdom In addition to the construction of the Thames Tunnel his work as a mechanical engineer included the design of machinery to automate the production of pulley blocks for the Royal Navy Brunel preferred the given name Isambard but is generally known to history as Marc to avoid confusion with his more famous son Contents 1 Early life in France 2 United States 3 Britain 4 Debtors prison 5 Thames Tunnel 5 1 Problems 5 2 Later developments 6 Subsequent life 7 References 7 1 Citations 7 2 Sources 7 3 Further reading 8 External linksEarly life in France EditBrunel was the second son of Jean Charles Brunel and Marie Victoire Lefebvre Jean Charles was a prosperous farmer in Hacqueville Normandy and Marc was born on the family farm It was customary for the first son to inherit the farm and the second son to enter the priesthood His father therefore started Marc on a classical education but he showed no liking for Greek or Latin and instead showed himself proficient in drawing and mathematics He was also very musical from an early age At the age of eleven he was sent to a seminary in Rouen The superior of the seminary allowed him to learn carpentry and he soon achieved the standards of a cabinetmaker He also sketched ships in the local harbour As he showed no desire to become a priest his father sent him to stay with relatives in Rouen where a family friend tutored him on naval matters In 1786 as a result of this tuition Marc became a naval cadet on a French frigate and during his service visited the West Indies several times He made an octant for himself from brass and ivory 3 and used it during his service 4 In 1789 during Brunel s service abroad the French Revolution began In January 1792 Brunel s frigate paid off its crew and Brunel returned to live with his relatives in Rouen He was a Royalist sympathiser as were most of the inhabitants of Normandy In January 1793 whilst visiting Paris during the trial of Louis XVI Brunel unwisely publicly predicted the demise of Robespierre one of the leaders of the Revolution He was lucky to get out of Paris with his life and returned to Rouen However it was evident that he would have to leave France During his stay in Rouen Brunel had met Sophia Kingdom a young English woman who was an orphan and was working as a governess He was forced to leave her behind when he fled to Le Havre and boarded the American ship Liberty bound for New York 4 United States EditBrunel arrived in New York on 6 September 1793 and he subsequently travelled to Philadelphia and Albany He got involved in a scheme to link the Hudson River by canal with Lake Champlain and also submitted a design for the new Capitol building to be built in Washington The judges were very impressed with the design but it was not selected 5 6 In 1796 after taking American citizenship Brunel was appointed Chief Engineer of the city of New York He designed various houses docks commercial buildings an arsenal and a cannon factory No official records exist of the projects that he carried out in New York as it seems likely that the documents were destroyed in the New York Draft Riots of 1863 5 In 1798 during a dinner conversation Brunel learnt of the difficulties that the Royal Navy had in obtaining the 100 000 pulley blocks that it needed each year Each of these was made by hand Brunel quickly produced an outline design of a set of machines that would automate their production He decided to sail to England and put his invention before the Admiralty He sailed for England on 7 February 1799 with a letter of introduction to the Navy Minister and on 7 March his ship Halifax landed at Falmouth 5 Britain EditWhilst Brunel had been in the United States Sophia Kingdom had remained in Rouen and during the Reign of Terror she was arrested as an English spy and daily expected to be executed She was only saved by the fall of Robespierre in June 1794 In April 1795 Kingdom was able to leave France and travel to London 7 When Brunel arrived from the United States he immediately travelled to London and made contact with Kingdom They were married on 1 November 1799 at St Andrew Holborn In 1801 she gave birth to their first child a daughter Sophia 8 in 1804 their second daughter Emma and in 1806 their son Isambard Kingdom who became a great engineer 7 Isambard Kingdom grew up in Lindsey House in Chelsea London One multiple and one single sheave pulley block for rigging on a sailing ship During the summer of 1799 Brunel was introduced to Henry Maudslay a talented engineer who had worked for Joseph Bramah and had recently started his own business Maudslay made working models of the machines for making pulley blocks and Brunel approached Samuel Bentham the Inspector General of Naval Works In April 1802 Bentham recommended the installation of Brunel s block making machinery at Portsmouth Block Mills Brunel s machine could be operated by unskilled workers at ten times the previous rate of production 9 Altogether 45 machines were installed at Portsmouth and by 1808 the plant was producing 130 000 blocks per year Unfortunately for Brunel the Admiralty vacillated over payment despite the fact that Brunel had spent more than 2 000 of his own money on the project In August 1808 they agreed to pay 1 000 on account and two years later they consented to a payment of just over 17 000 7 Brunel was a talented mechanical engineer and did much to develop sawmill machinery undertaking contracts for the British Government at Chatham and Woolwich dockyards building on his experience at the Portsmouth Block Mills He built a sawmill at Battersea London burnt down in 1814 and rebuilt by 1816 which was designed to produce veneers and he also designed sawmills for entrepreneurs He also developed machinery for mass producing soldiers boots but before this could reach full production demand ceased due to the end of the Napoleonic Wars Brunel was made a Fellow of the Royal Society in 1814 In 1828 he was elected a foreign member of the Royal Swedish Academy of Sciences Brunel was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1834 10 In 1845 he was elected an Honorary Fellow of the Royal Society of Edinburgh 11 Debtors prison EditBrunel several times became involved in unprofitable projects As a consequence by the beginning of 1821 he was deep in debt and in May of that year he was tried and committed to the King s Bench Prison a debtors prison in Southwark Prisoners in a debtors prison were allowed to have their family with them and Sophia accompanied him Brunel spent 88 days incarcerated As time passed with no prospect of gaining release Brunel began to correspond with Alexander I of Russia about the possibility of moving with his family to St Petersburg to work for the Tsar As soon as it was learnt that Britain was likely to lose such an eminent engineer as Brunel influential figures such as the Duke of Wellington began to press for government intervention The government granted 5 000 to clear Brunel s debts on condition that he abandon any plans to go to Russia As a result Brunel was released from prison in August 12 Thames Tunnel EditMain article Thames Tunnel Inside the Thames Tunnel during construction 1830 In 1805 the Thames Archway Company was formed with the intention of driving a tunnel beneath the Thames between Rotherhithe and Limehouse Richard Trevithick was engaged by the company to construct the tunnel He used Cornish miners to work on the tunnel In 1807 the tunnel encountered quicksand and conditions became difficult and dangerous Eventually the tunnel was abandoned after more than 1 000 feet had been completed and expert opinion led by William Jessop was that such a tunnel was impracticable 13 Brunel had already drawn up plans for a tunnel under the River Neva in Russia but this scheme never came to fruition In 1818 Brunel had patented a tunnelling shield This was a reinforced shield of cast iron in which miners would work in separate compartments digging at the tunnel face Periodically the shield would be driven forward by large jacks and the tunnel surface behind it would be lined with brick It is claimed that Brunel found the inspiration for his tunnelling shield from the shipworm Teredo navalis which has its head protected by a hard shell whilst it bores through ships timbers Brunel s invention provided the basis for subsequent tunnelling shields used to build the London Underground system and many other tunnels Brunel was so convinced that he could use such a tunnelling shield to dig a tunnel under the Thames that he wrote to every person of influence who might be interested At last in February 1824 a meeting was held and 2 128 shares at 50 each were subscribed for In June 1824 the Thames Tunnel Company was incorporated by royal assent The tunnel was intended for horse drawn traffic 13 Diagram of the tunnelling shield used to construct the Thames Tunnel Work began in February 1825 by sinking a 50 feet 15 m diameter vertical shaft on the Rotherhithe bank This was done by constructing a 50 feet 15 m diameter metal ring upon which a circular brick tower was built As the tower rose in height its weight forced the ring into the ground and at the same time workmen excavated the earth in the centre of the ring This vertical shaft was completed in November 1825 and the tunnelling shield which had been manufactured at Lambeth by Henry Maudslay s company was then assembled at the bottom Maudslay also supplied the steam powered pumps for the project The shield was rectangular in cross section and consisted of twelve frames side by side each of which could be moved forward independently of the others Each frame contained three compartments one above the other each big enough for one man to excavate the tunnel face and the whole frame accommodated 36 miners When enough material had been removed from the tunnel face the frame was moved forward by large jacks As the shield moved forward bricklayers followed lining the walls The tunnel required over 7 500 000 bricks 13 Problems Edit Brunel was assisted in his work by his son Isambard Kingdom Brunel now 18 years old Brunel had planned the tunnel to pass no more than fourteen feet below the riverbed at its lowest point This caused problems later Another problem that hindered Brunel was that William Smith the chairman of the company thought that the tunnelling shield was an unnecessary luxury and that the tunnel could be made more cheaply by traditional methods He wanted Brunel replaced as Chief Engineer and constantly tried to undermine his position Fortunately the shield quickly proved its worth During the tunnelling both Brunel and his assistant engineer suffered ill health and for a while Isambard had to bear the whole burden of the work 14 There were several instances of flooding at the tunnel face due to its nearness to the bed of the river and in May 1827 it was necessary to plug an enormous hole that appeared on the riverbed Finally the resources of the Thames Tunnel Company were consumed and despite efforts to raise more money the tunnel was sealed up in August 1828 Brunel resigned from his position frustrated by the continued opposition from the chairman He undertook various civil engineering projects including helping his son Isambard with his design of the Clifton Suspension Bridge 14 In March 1832 William Smith was deposed as chairman of the Thames Tunnel Company He had been a thorn in Brunel s side throughout the project In 1834 the government agreed a loan of 246 000 to the Thames Tunnel Company The old 80 ton tunnelling shield was removed and replaced by a new improved 140 ton shield consisting of 9 000 parts that had to be fitted together underground Tunnelling was resumed but there were still instances of flooding in which the pumps were overwhelmed Miners were affected by the constant influx of polluted water and many fell ill As the tunnel approached the Wapping shore work began on sinking a vertical shaft similar to the Rotherhithe one This began in 1840 and took thirteen months to complete 15 On 24 March 1841 Brunel was knighted by the young Queen Victoria This was at the suggestion of Prince Albert who had shown keen interest in the progress of the tunnel The tunnel opened on the Wapping side of the river on 1 August 1842 On 7 November 1842 Brunel suffered a stroke that paralysed his right side for a time The Thames Tunnel finally officially opened on 25 March 1843 and Brunel despite ill health took part in the opening ceremony Within 15 weeks of opening 1 000 000 people visited the tunnel On 26 July 1843 Queen Victoria and Prince Albert visited Although intended for horse drawn traffic the tunnel remained pedestrian only 15 Later developments Edit In 1865 the East London Railway Company purchased the Thames Tunnel for 200 000 and four years later the first trains passed through it Subsequently the tunnel became part of the London Underground system and remains in use today as part of the East London Line of London Overground 16 The engine house in Rotherhithe was taken over by a charitable trust in 1975 and transformed into the Brunel Museum in 2006 Subsequent life Edit Brunel family grave in Kensal Green Cemetery After the completion of the Thames Tunnel his greatest achievement Brunel was in poor health He never again accepted major commissions although he did help his son Isambard on various projects He was proud of his son s achievements and was present at the launch of the SS Great Britain in Bristol on 19 July 1843 In 1845 Brunel suffered another more severe stroke and was almost totally paralysed on his right side On 12 December 1849 Brunel died at the age of 80 and his remains were interred in Kensal Green Cemetery in London His wife Sophia was subsequently interred in the same plot followed by their son Isambard just 10 years later 16 References EditCitations Edit Sir Marc Isambard Brunel French British engineer Encyclopedia Britannica Rolt 1957 p 6 Brunel 1822 a b Bagust 2006 pp 11 16 a b c Bagust 2006 pp 17 21 Kentley Hulse amp Elton 2006 pp 15 16 a b c Bagust 2006 pp 22 50 Baptism Register accounts as baptism 27 1 01 Gilbert 1965 pp 4 6 American Academy of Arts and Sciences p 73 Waterston amp Shearer 2006 p 131 Bagust 2006 pp 51 57 a b c Bagust 2006 pp 62 70 a b Bagust 2006 pp 71 80 a b Bagust 2006 pp 87 96 a b Bagust 2006 pp 97 100 Sources Edit American Academy of Arts and Sciences Book of Members 1780 present PDF Retrieved 7 November 2017 Bagust Harold 2006 The Greater Genius A biography of Marc Isambard Brunel Hersham Ian Allan Publishing ISBN 0 7110 3175 4 OCLC 255313889 Brunel Sir Marc Isambard 19 February 1822 Concerning Isambard Kingdom Brunel and Breguet Breguet s friendship and instruction entry to l Ecole Polytechnique Franceur Isambard Kingdom Brunel and holidays appreciation of the Breguets in French Letter to Louis Antoine Breguet University of Bristol Library Special Collections DM1277 4 Retrieved 7 November 2017 Gilbert Keith Reginald 1965 The Portsmouth Block making Machinery A Pioneering Enterprise in Mass Production London H M Stationery Office Kentley Eric Hulse Robert Elton Julia 2006 The Brunel s Tunel Institution of Civil Engineers ISBN 0 9504361 2 7 Rolt L T C 1957 Isambard Kingdom Brunel Longman Group Waterston C D Shearer A Macmillan July 2006 Biographical index of former fellows of the Royal Society of Edinburgh 1783 2002 PDF Vol Part I A J Royal Society of Edinburgh ISBN 0 902 198 84 X Archived from the original PDF on 4 October 2006 Retrieved 7 November 2017 Further reading Edit Coad Jonathan 2005 The Portsmouth Block Mills Bentham Brunel and the start of the Royal Navy s Industrial Revolution ISBN 1 873592 87 6 Roe Joseph Wickham 1916 English and American Tool Builders New Haven Connecticut Yale University Press LCCN 16011753 Reprinted by McGraw Hill New York and London 1926 LCCN 27 24075 and by Lindsay Publications Inc Bradley Illinois ISBN 978 0 917914 73 7 External links Edit Wikimedia Commons has media related to Marc Isambart Brunel Wikisource has the text of the 1911 Encyclopaedia Britannica article Brunel Sir Marc Isambard Ancient Places TV HD Video of Brunel father and son and the SS Great Britain The Brunel Institute Collaborative venture between the SS Great Britain Trust and the University of Bristol Housed alongside the SS Great Britain at Bristol it includes the National Brunel Collection The Brunel Museum Based in Rotherhithe London the museum is housed in the building that contained the pumps to keep the Thames Tunnel dry Retrieved from https en wikipedia org w index php title Marc Isambard Brunel amp oldid 1133329583, wikipedia, wiki, book, books, library,

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