eccentric cutter

A cutting-tool placed upon the slide-rest, and having a rotation by means of a wheel and shaft, the cutter being attached to the end of the latter. The rotation is obtained by an overhead motion, and the eccentricity by fixing the cutter at different distances from the center by means of the groove and screw. The action of the eccentric-cutter differs from that of the eccentric chuck in this: in the latter the work is rotated and the tool is stationary; in the former the work is stationary and the tool revolves. When the motions are used in conjunction, the patterns are capable of almost unlimited variation. eccentric-engraving, s . An arrangement of diamond tracers, operated by elaborate machinery, acting upon a varnished roller designed for calico printing. The effect is analogous to that produced by the rose engine lathe