sun valve
Sign in to savevalve used to automatically control gas flow in lighthouses
Wikidata facts
- Part of
- lighthouse
- Image
- Sun valve designed by Gustaf Dalen, 1912, turns lighthouse on at night and off during the day, TM34299 - Tekniska museet - Stockholm, Sweden - DSC01443.JPG
Show 2 more facts
- discoverer or inventor
- Gustaf Dalén
- publication date
- 1912-00-00
Sources (1)
via Wikidata · CC0