s the nicest segments, and together forming a ‘continuous line of machinery as well as the most careful adjustment of inG. The end, m, of the driving shaft revolves in the work. s the rifling is the last operation of any internal gear, within which and parallel to itis a the grooves, the racks and… … it. The driving shart m m' m”, carrying the pinion, when he undertakes to devise a machine of this kind. the feed wire, forces the cutters out for the next cut; n, is connected to this wheel by the universal joint, Fig. 1 is a perspective view of the machine for this continues until the button, a,…
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