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Scientific American, Vol. 5, No. 48 (1850) (1850)

leaf 3

An illustration from Scientific American, Vol. 5, No. 48 (1850), 1850, leaf 3 — ts and moves on fric- comets, that is to move around or about differ- tion rollers; the said axles or shafts may also ent solar centres, is to take several solar mag- be made to revolve with them, by toggle-joints nets, like figs. 1 and 2, and place two, three, or bevel cog-wheels connecting them… … [The claim of Mr. Hubbell, for theSolar Mag- ps distinctly separated, by dispensing with the ull a © 1850 SCIENTIFIC AMERICAN, INC

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