Duplex Burner

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“An improved form of the lamp, in which a portion of the cone B is removed to show the two parallel flat wicks A, A, which have each a separate slit or opening in the cone. C is the coincident winder for raising or lowering the wicks in the tubes, by which the wicks can be moved separately or simultaneously as desired. D is a lever for raising the extinguishers E, whereby not onl is the light instantly extinguished, but the wicks are also covered and protected from dirt, while all evaporation by the wick-holder is prevented.” —The Encyclopedia Britannica, 1910


Oil Lamps


The Encyclopedia Britannica, New Warner Edition (New York, NY: The Werner Company, 1893)


TIFF (full resolution)

2178×2400, 796.5 KiB

Large GIF

929×1024, 119.7 KiB

Medium GIF

580×640, 62.6 KiB

Small GIF

290×320, 24.0 KiB