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Scientific American, Vol. 12, No. 7 (1865) (1865)

leaf 7

An illustration from Scientific American, Vol. 12, No. 7 (1865), 1865, leaf 7
sti-| pinion, C, set in the guard, D. The pinion further the coal through an aperture at the bottom, thus ces are filled, with warm air; then if the air is cooled, | gears inthe lever, E. When the latter is worked avoiding, says the inventor, the dust caused by pour- it loses the power of holding… … and for many purposes will The patent was issued be found useful. The in- CHAMBERS'S COAL SCUTTLE. through the Scientific vention .was patented on American Patent Agen- the 13th of December, 1864, hy George Chambers, of which it contains, and a portion is deposited on the|cy on the 8th of November,…

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