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searching for Sun valve 3 found (30 total)

alternate case: sun valve

Vypin Lighthouse (294 words) [view diff] exact match in snippet view article find links to article

steel tower was installed with a gaslight. In 1966, a mechanism called sun valve was introduced. Plans to construct a taller and brighter light and a radio

List of civil engineers (180 words) [view diff] exact match in snippet view article find links to article

canal engineer Thomas Dadford Jr. English canal engineer Gustaf Dalén Sun valve, unmanned acetylene lighthouses George Christian Darbyshire Australian

Sir Hugh Rose Island (428 words) [view diff] exact match in snippet view article find links to article

position in 1978. The DA gas burner was replaced by a DA gas flasher with a sun valve. This reduced the consumption of DA gas but the intensity of the light