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Scientific American, Vol. 36, No. 9 (1877) (1877)

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An illustration from Scientific American, Vol. 36, No. 9 (1877), 1877, leaf 0
[raze per Annum. NEW YORK, MARCH 3, 1877. [NEW SERIES.] [POSTAGE PREPAID.] floor. The wire is now transported to a large oven in which is then several times heated and punched with successively made of the hardest precious stones. With a plate hav- ing a hole pierced drawing the 6,800,- 000 Ibs. of… … MAH va shown in the fore- fine gauge, necessi- ground on the left. tating several draw- To the end of this ings, it is softened lever is fastened a by annealing in a chain which is at- suitable furnace. tached to nippers or The bridge wire, to a dog. Having however, does not thrown his coil over…

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