Casquets lighthouses per ton of ship when vessels passed the rocks and in turn he paid Trinity House 50 pounds per year for the right to run the lighthouses. The lighthouses reverted to Trinity House in 1785. They were converted to oil lamps with metal reflectors which were first used on 25 November 1790; and upgraded again with apparatus to rotate a beam of light in 1818. This had a clockwork mechanism which was wound up every hour and a half and gave one flash every 15 seconds. The lighthouses were badly damaged and the lanterns smashed in a severe storm on
Lighthouses in Chile Siemsen was appointed chief of the "Servicio de Faros". He built the "Faro Corona" in Ancud, "Punta Caldera" in Atacama, "Punta Tortugas" in Coquimbo, "Isla Quiriquina" in Quiriquina, "Punta Galera" and "Punta Niebla" in Corral. The first lighthouses in Chile used colza oil as fuel, but in 1878 it was replaced by Bunsen burners. George Slight designed and built in the 1890s more than 70 of today's historic lighthouses of Chile. He was a Scottish engineer who moved to Chile and eventually became the head of the Chilean Maritime Signaling Service. As of 2013, the National Geospatial-Intelligence Agency (NGA) lists