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Scientific American, Vol. 64, No. 6 (February 1891) (1891)

leaf 6

An illustration from Scientific American, Vol. 64, No. 6 (February 1891), 1891, leaf 6
he estimated that treated, and then both print and mount—the latter braces or wedges are employed to prevent the tool from a speed of one hundred and fifty miles per hour was over such part only as the print is to occupy—well im- slipping. We remedied this defect ou a lathe we were pregnated with… … sponge after the print is rubbed down, but this is shows the contrivance employed. The block, c, was of equal distances north and south of a line drawn scarcely needful, as it dries perfectly matt, and is only cast iron, and the holder, a, of best refined iron, the through the middle of the State…

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