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Scientific American, Vol. 31, No. 9 (1874) (1874)

leaf 7

An illustration from Scientific American, Vol. 31, No. 9 (1874), 1874, leaf 7
eased to three of merit will be noted in the course of the description. Many a superintendent or foreman of a shop hag, doubt- feet in length—to util'ze him, to put him to some other em- less, wondered at the extreme slowness with which his hand Fig. 1 is a perspective view. Fig 2 shows the… … with a radial termination, w,and have dimen- upper extremity of the feed screw is a horizontal hollow wheel, the inner peri- sions between the lines, w b, decreasing from the rim of the wheel tothe hub, as phery of which is suitably notched. On the drill spindle which passes down through the screw…

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