William Henry Preece
Sir William Henry Preece (born February 15, 1834 in Caernarfon , † November 6, 1913 ibid) was a Welsh electrical engineer and inventor.
He attended King's College London, studied at the Royal Institution in London with Michael Faraday and then worked for the London and South Western Railway . He was a consulting engineer for the Post Office in the 1870s and brought the first pair of Graham Bell telephones to London in 1877 . In 1892 he became chief engineer of the British General Post Office .
He developed some improvements in railway signaling. During this time he corresponded with Oliver Lodge over coiled lines .
In the years from 1883 to 1888 he carried out studies on the melting of current-carrying wires and developed an empirical formula for the material and diameter-dependent limit currents, as required for fuses .
In 1885 he experimented with Arthur West Heaviside , Divisional Engineer at the British General Post Office and the eight years older brother of Oliver Heaviside , on parallel telegraph lines and wireless telephone receivers , where they discovered radio induction ( crosstalk ).
In 1889 he successfully transmitted Morse code wirelessly by radio telegraphy over 1.6 km at Coniston Water , in 1892 he developed a wireless telegraphy system based on it. In the following years from 1897 he mainly supported the experiments and setups for wireless telegraphy by Guglielmo Marconi , who realized the first transatlantic radio transmission between North America and Europe.
In 1899 he became a Knight Commander of the Order of the Bath for beaten knight .
literature
- Kurt Jäger, Friedrich Heilbronner: Lexicon of electrical engineers . 2nd Edition. VDE Verlag, 2010, ISBN 978-3-8007-2903-6 .
Individual evidence
- ^ Preece WH: On the Heating Effects of Electric Currents , Proceedings Royal Society 36, 464-471 (1883). No. II, 43, 280-295 (1887). No. III, 44, 109–111 (1888), cited in https://www.researchgate.net/publication/286096911_Fusing_of_wires_by_electrical_current Babrauskas, Vytenis & Wichman, IS: Fusing of wires by electrical current . Conference Proceedings - Fire and Materials 2011, 12th International Conference and Exhibition, pages 769-780, page 772, accessed March 7, 2019
- ↑ Edinburgh Gazette . No. 11101, HMSO, Edinburgh, 13 June 1899, p. 589 ( PDF , accessed on 3 April 2015, English).
personal data | |
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SURNAME | Preece, William Henry |
BRIEF DESCRIPTION | Welsh electrical engineer and inventor |
DATE OF BIRTH | February 15, 1834 |
PLACE OF BIRTH | Caernarfon |
DATE OF DEATH | November 6, 1913 |
Place of death | Caernarfon |