Lost Sounds: The Story of Coast Fog Signals
Lost Sounds reveals the practical development of sound signals from the early percussion instruments to the later succession of compressed -air sirens and diaphones. It is a record of another part of maritime history.
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South Foreland and the fog signal trials
The Lizard and the development of the siren
Beachy Head and the explosive fog signal
St Catherines and the 1901 fog signal trials
Lord Rayleigh as Scientific Advisor to Trinity House conducted further
Refurbishment and new plant
The Scottish siren and
aboard acetylene actuating admission valve Ailsa Craig air receivers automatic blast built buoys caloric engines Chance Brothers cliffs clockwork compressed air cylinder Daboll developed diameter diaphone disc Dungeness early Elder Brethren electric emitters electric fog signal engine house engine room equipment explosive fog signal F-type feet fired five-inch fog bell fog detector fog signal frequency gun cotton high note Holmes horn house Hyskeir inches inside installed instrument iron James Douglass keepers lamp lantern light lighthouse authorities lightvessels Lizard low note Lundy North magneto mariner miles minutes Mull of Kintyre navigation Northern Lighthouse Board Northern Lighthouses operated optic oscillator pipe piston Portland Bill ports pressure produced radio beacon Rayleigh trumpets replaced resonator rotation seconds Seven Stones ship siren sound signals sounding receiver South Stack St Abb's St Catherine's station steam Stevenson supertyfon tower Trinity House two-note siren Tyndall vessels whistle wind