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Scientific American, Vol. 65, No. 22 (November 1891) (1891)

leaf 3

An illustration from Scientific American, Vol. 65, No. 22 (November 1891), 1891, leaf 3
, eight of which, holding out very rapidly, have malleable iron wearing blocks three bushels each, can be carried on the machine. men working at intervals during the day are required, interposed at each articulation. These blocks not When these are filled, they are set off on to the curb- three men… … soils. STANDARD COAL CONVEYOR. cess. ©1891 SCIENTIFIC AMERICAN, INC.

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