US PATENT SUBCLASS 83 / 429
.~.~.~ With means to effect difference between work speed and tool speed

Current as of: June, 1999
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83 /   HD   CUTTING

401  DF  WITH MEANS TO CONVEY WORK RELATIVE TO TOOL STATION {18}
425  DF  .~ Cut made parallel to direction of and during work movement {12}
426  DF  .~.~ Interrelated work-conveying and tool-moving means {4}
429.~.~.~ With means to effect difference between work speed and tool speed

DEFINITION

Classification: 83/429

(under subclass 426) Device in which the cutter-moving means imparts to the cutter a component of velocity in the direction of movement of the work, and including means to cause the velocity of the cutter to be different in magnitude than the velocity of the work.

(1) Note. Since a reciprocating cutter whose cutting edge is at an oblique angle to the direction of work movement inherently has a varying component of velocity in the direction of work movement as it accelerates and decelerates in its to-and-fro movement, this of itself is not considered a means to bring about a difference between the speed of the tool and the speed of the work. However, if a means is

provided to vary the speed of the motion converting mechanism (which effects the reciprocation of such a cutter) with relation to the speed of the work, such patents have been placed in this subclass (429).

(2) Note. A patent claiming means to rotate the cutter in a negative direction; e.g., a direction opposed to the movement of the work, will be found herein.