US PATENT SUBCLASS 83 / 704
.~.~ Work alternately, angularly re-oriented relative to tool station

Current as of: June, 1999
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83 /   HD   CUTTING

401  DF  WITH MEANS TO CONVEY WORK RELATIVE TO TOOL STATION {18}
703  DF  .~ Plural passes of diminishing work piece through tool station {2}
704.~.~ Work alternately, angularly re-oriented relative to tool station {2}
705  DF  .~.~.~> By additional means to engage work and orient it relative to tool station
706  DF  .~.~.~> By roller or roll-like element

DEFINITION

Classification: 83/704

(under subclass 703) Device including means to facilitate or cause alternating clockwise-counterwise rotational movement of the work about an axis parallel to the cutting plane when the work is out of contact with the cutting tool.

(1) Note. This device is usually a "shingle-cutting" machine wherein the work supported by the feed carriage is given alternate outward cants (of each of the lead corners of the workpiece) into the plane of cut such that the work is tilted or slanted in a step-by-step fashion with respect to the feed carriage base or platform.

(2) Note. A device having an alternately tilting or slanting gauge (thickness) plate, against which the lead edge of the work contacts as the work is being fed to the cutting

zone, is found in this subclass (704).