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Scientific American, Vol. 38, No. 21 (May 1878) (1878)

leaf 7

An illustration from Scientific American, Vol. 38, No. 21 (May 1878), 1878, leaf 7
As the piston, C, rises it closes the delivery port, D, Weight op Steam.—27-3323 cubic feet of steam at the and thus the supply of steam is reduced or cut off until the scription of a new sort of charcoal for drawing with. The pressure of 1 atmosphere weighs 1 lb. avoirdupois. ordinary drawing… … claimed for it are, that it also prepared of a catechu cannot become jammed COOKSEY'S IMPROVED FARM GATE. brown. © 1878 SCIENTIFIC AMERICAN, INC

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