John Archibald Purves

Dr John Archibald Purves FRSE (8 July 1870–11 April 1952) was an English electrical engineer best remembered as inventor of the dynasphere. However, his biggest contribution was in the field of electricity supply.

Life

He was born in Taunton in Somerset on 8 July 1870.

He studied physics at the University of Edinburgh specialising in the then new field of electrical engineering. He graduated with a BSc and went on the gain a doctorate (DSc) in 1899.[1]

In Scotland he helped to establish electricity companies in southern Scotland later merged to create the South of Scotland Electricity Board.

In 1897 he was elected a Fellow of the Royal Society of Edinburgh. His proposers were William Peddie, George Chrystal, Robert Boog Watson and Sir James Ormiston Affleck.[2] At this time he lived at 4 Wardie Avenue in northern Edinburgh and appears to have been a partner in a firm named Lorrain & Purves, engineers and patent agents, of 53 York Place in the town centre.[3]

In 1902 he moved to Devon in south-west England with his brother, William Thomson Purves.[4] Together they founded the Paignton Power and Lighting Company in 1908 and created a consultative company, the Western Electricity Corporation in Exeter in the same year. The primary purpose of the latter was to promote hydro-electric schemes on Dartmoor. In 1920 when the Dartmoor Preservation Society successfully blocked the proposal.[5]

In 1911 he was living at 6 Pennsylvania Park in Exeter.[6] In 1926 he won the franchise to supply Bampton with electricity.[7] In 1927 he won a franchise to supply electricity to South Molton.[8] In 1928, with his friend Sir John Snell he began a roll-out programme of electricity supply systems under the West of England Electricity Ltd based in Honiton[5]

In 1930 he moved to Chilliswood outside Taunton and here he invented the Dynasphere.[9]

He died at Collumpton in Devon on 11 April 1952.

Family

He was married to Edith Purves (b.1869) and their children included Charles Eric Purves (b.1898).[6]

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References
  1. Purves, John Archibald (1899). Lighthouse optics (Thesis). University of Edinburgh. hdl:1842/24241.
  2. Biographical Index of Former Fellows of the Royal Society of Edinburgh 1783 – 2002 (PDF). The Royal Society of Edinburgh. July 2006. ISBN 0-902-198-84-X.
  3. Edinburgh Post Office directory 1897/8
  4. https://www.gracesguide.co.uk/J._and_W._Purves
  5. http://emep.worldonline.co.uk/SWEHS/docs/news26su.html
  6. "John Archibald Purves". Grace's Guide to British Industrial History. Retrieved 19 April 2018.
  7. London Gazette 16 July 1926
  8. London Gazette 9 September 1927
  9. https://www.friendsofsomersetarchives.org.uk/files/Snippets/Snippets%20Oct%202006.pdf



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