J. P. Knight

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J. P. Knight
John Peake Knight.jpg
John Peake Knight Inventor of the Traffic light
Born
John Peake Knight

(1828-01-13)13 January 1828 [1]
Died23 July 1886(1886-07-23) (aged 58)
Resting place Brompton Cemetery London U.K
NationalityBritish
Education Nottingham High School
OccupationEngineer
SpouseElizabeth Knight (1832–1913)
Children5
Engineering career
Employer(s) South Eastern Railway (England), London, Brighton & South Coast Railway
Projectsfirst traffic light
Awards Legion of Honour, 1878 [2]

John Peake Knight (13 December 1828 – 23 July 1886) was an English railway manager and inventor, credited with inventing the traffic light in 1868.

Contents

Biography

Knight was born in Nottingham and attended Nottingham High School. His elementary school is unknown. He left school at the age of 12 to work in the parcel room of Derby railway station. Peake Knight was promoted quickly and by the age of 20 had joined the South Eastern Railway, rising to the rank of Superintendent. He was appointed Traffic Manager for the London to Brighton Line in 1869 and General Manager the following year. He did a great deal to improve the quality of railway travel on the railway, introducing the Westinghouse air brake, safer carriages with communication cords, electric lighting, and Pullman cars. [3]

He and his wife, Elizabeth, had five sons and the eldest founded J P Knight Ltd., tug boat operators.

Knight died in 1886 and the Prince of Wales had a special wreath placed on his coffin during the funeral. [4] He is buried in Brompton Cemetery in London. [5]

Invention of traffic lights

In 1866, a year in which 1,102 people were killed and 1,334 injured on roads in London, Knight proposed a signalling system to regulate the horse-drawn traffic and reduce the number of road accidents. Knight's invention was operated by a policeman and used a semaphore, system based on railway signalling, during the day and red and green gas-powered lamps at night. The world's first traffic light was installed on 9 December 1868 in London near Westminster Bridge, at the intersection of Great George Street and Bridge Street, London SW1. However, in 1869, a gas leak caused one of the lights to explode, badly injuring the policeman operating it, and the system fell out of favour and was removed as a result. Traffic lights did not appear again in the UK until 1929, when the first electric signals were introduced in London. [6]

A memorial plaque to Knight's invention can be seen at 12 Bridge Street, Westminster, the corner building close to where the original traffic lights were erected. Minister for Roads and Road Safety Baroness Hayman unveiled the plaque on 4 March 1998. [4]

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References

  1. "Obituary. John Peake Knight, 1828-1886". Minutes of the Proceedings. 87 (1887): 456–458. January 1887. doi: 10.1680/imotp.1887.21323 .
  2. Day, Lance; Ian McNeil (1996). Biographical dictionary of the history of technology. Taylor & Francis. p. 404. ISBN   0-415-06042-7.
  3. Illustrated London News, (21 August 1886) 204,
  4. 1 2 City of Westminster green plaques Archived 16 July 2012 at the Wayback Machine
  5. Carnell, Jennifer (22 September 2009). "Photographs of Brompton Cemetery in London by Jennifer Carnell. Victorian graves of famous and not so famous people, including the novelist G.A. Henty". Archived from the original on 20 August 2008. Retrieved 8 November 2009.
  6. "The man who gave us traffic lights". BBC. 16 July 2009. Retrieved 25 April 2011.