Sidney George Brown
Sidney George Brown (born July 6, 1873 in Chicago , † August 7, 1948 in Sidmouth , Devon ) was an English electrical engineer, inventor and Fellow of the Royal Society .
He was born in Chicago to English parents. In 1879 the family returned to Great Britain and he began his education at a private school in Parkstone, near Bournemouth . He then attended Harrogate College. 1894–96 he studied at University College London . By 1897 he trained at Crompton & Co. in Chelmsford and then returned to Bournemouth.
In 1899 he received his first patent. In 1906 he founded the Telegraph Condenser Company (TCC), a manufacturer of capacitors. In 1911 he founded his second company SG Brown Ltd. for the manufacture of telephone equipment, radio parts, headphones and speakers. By 1910 he had also developed a mechanical telephone amplifier ( telephone relay in which an electromagnet acts directly on the membrane of a carbon microphone), which was marketed and further developed under license by Siemens & Halske .
During the First World War, SG Brown developed gyro compasses that were previously imported from Germany. It included a fluid ballistic damper to limit vibration when changing course.
In 1933 the Telegraph Condenser Company was converted into a public limited company . It was taken over by Plessey in the 1960s .
In 1943 he retired and sold his shares in the company.
Individual evidence
- ↑ http://www.douglas-self.com/MUSEUM/COMMS/mechamp/mechamp.htm#brown
- ↑ http://www.radiomuseum.org/r/siemens_mechantelefonverstaerker.html
Web links
- http://atlantic-cable.com/Ads/index.html
- http://atlantic-cable.com/Equipment/BrownDrumRelay/index.htm Drum Relay
- http://www.cdvandt.org/brown-amplifier.htm
| personal data | |
|---|---|
| SURNAME | Brown, Sidney George |
| BRIEF DESCRIPTION | English electrical engineer, inventor and Fellow of the Royal Society |
| DATE OF BIRTH | July 6, 1873 |
| PLACE OF BIRTH | Chicago |
| DATE OF DEATH | August 7, 1948 |
| Place of death | Sidmouth , Devon |