Lamp For Burning Petroleum, James Hinks and Joseph Hinks, in Scientific American, Vol. 17, No. 26 December 28, 1867. (extract (http://www.knowledgerush.com/paginated_txt/etext05/7s017z10/7s017z10_s1_p71_pages.html))
James and JosephHinks patented the duplex burner and the extinguisher lever in 1865.
Hinks' Phoenix Patent, an interesting single wick design with an internal self-extinguishing ability given by a sphere of steel that blocks the oil exit if the lamp is upset.
Hinks No2 Triple is a variation on the Duplex burner but why it is called 'Triple' is not obvious.