. Appleton's dictionary of machines, mechanics, engine-work, and engineering. tent. The na-ture of the first part of this invention or improvement in the before-mentioned machine consists in giv-ing to the frame or carriage that carries the carrying and holding wheel (sometimes misnamed the feed-ing-wheel) an intermittent reciprocating motion to withdraw the turned blank and insert the points ofothers in the jaws, in succession, instead of giving an endwise motion to the mandrel for this purpose asheretofore; and also in giving to the carrying-wheel an intermittent rotary motion to present a n
. Appleton's dictionary of machines, mechanics, engine-work, and engineering. tent. The na-ture of the first part of this invention or improvement in the before-mentioned machine consists in giv-ing to the frame or carriage that carries the carrying and holding wheel (sometimes misnamed the feed-ing-wheel) an intermittent reciprocating motion to withdraw the turned blank and insert the points ofothers in the jaws, in succession, instead of giving an endwise motion to the mandrel for this purpose asheretofore; and also in giving to the carrying-wheel an intermittent rotary motion to present a newblank to the jaws .preparatory to the insertion of the same into the jaws by the motion of the the second part of this invention consists in. shaving the under and upper surface of the heads,within the rim of the carrying and holding wheel, by means of a tool properly adapted to the purpose,which is attached to the end of a vibrating tool-holder, that receives its appropriate motions at rightangles to the axes of the blank from a cam on the main-shaft. In Figs. 3267, 3268, and 3269, a represents a frame properly adapted to the purpose, but which maybe changed at the discretion of the constructor. On the table b of this frame, and near one end thereof,there are two ways c c, in which slides a carriage d, that carries the carrying and holding wheel «, forthe purpose of withdrawing from the jaws the blank that has been turned, and presenting a new one tothe jaws. The carrying and holding wheel c is made with a projecting rim/, in which spaces are cut out atequal given distances apart, and extending from the face of the wheel to the middle of the width of theprojecting rim, and in these recesses are fitted dies g, which are secured by screws to the wheel—theholes that receive the screw-blanks are made half in the end of the dies and the other half in the edgeof the recesses, so that by sliding the dies the holes can be adapted to different sizes of screw-bl
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
