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Scientific American, Vol. 89, No. 13 (September 1903) (1903)

leaf 4

An illustration from Scientific American, Vol. 89, No. 13 (September 1903), 1903, leaf 4
lantern has ball bearings on the main standardwhich supports the clock mechanism. The clockworkis operated by a weight hanging in a shaft extendingvertically through the center of the lighthouse. Another engraving shows a more powerful lantern,which is operated by clockwork mounted at one side.This… … Flashing: Lantern with Colored Slides. Four-Sided Flashing: Lantern.REVOLVING LARTEBH8 70S LIGHTHOUSES. Flashing Lantern with Reflecting Prisms. © 1903 SCIENTIFIC AMERICAN, INC 2l8 Scientific American. September 26, 1903. on an improved tyye of ball bearing which is illus-trated In two of our…

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