Apparatus for flaking and surfacing wood

Claim 1

IN A DEVICE OF THE CHARACTER DESCRIBED FOR FLAKING AND SURFACING WOOD, A ROTATING CUTTER HEAD HAVING ITS PERIPHERY FORMED INTO A PLURALITY OF IDENTICAL VOLUTE PORTIONS EACH HAVING A RADIUS DECREASING CONSTANTLY IN THE DIRECTION OPPOSITE FROM THE DIRECTION OF ROTATION, SAID VOLUTE PORTIONS HAVING EQUALLY SPACED SLOTS, EACH OF SAID SLOTS EXTENDING IN A SINGLE PLANE, SAID SLOTS INCLINED FORWARDLY IN THE DIRECTION OF ROTATION OF SAID CUTTER HEAD, THE PLANES OF SAID SLOTS ALL HAVING THE SAME ANGULARITY WITH THE CUTTER HEAD AXIS, KNIFE BARS SECURRED IN SAID SLOTS RESPECTIVELY, EACH KNIFE BAR EXTENDING IN A SINGLE PLANE, EACH KNIFE BAR AND THE SLOT IN WHICH IT IS MOUNTED DEFINING A PLANE ELONGATED IN THE SAME DIRECTION, SAID KNIFE BARS HAVING STRAIGHT CUTTING KNIFE BLADES EXTENDING SUBSTANTIALLY RADIALLY OUTWARDLY FROM SAID CUTTER HEAD, SAID KNIFE BARS SO POSITIONED IN THEIR RESPECTIVE SLOTS THAT SAID CUTTING KNIFE BLADES WILL BE ARRANGED IN PATHS ADVANCING AXIALLY TOWARD THE WORK IN THE DIRECTION OPPOSTE FROM THE DIRECTION OF ROTATION OF SAID CUTTER HEAD, THE OUTER PERIPHERAL NON-CUTTING EDGES OF SAID KNIFE BARS EXTENDING FROM THE OUTER ENDS OF SAID BLADES BEING CURVED AND ELONGATED IN THEIR RESPECTIVE PLANES AND CONSTITUTING ARCS OF IDENTICAL CIRCLES, THE CURVATURE OF SAID NON-CUTTING PERIPHERAL EDGES ALSO CORRESPONDING SUBSTANTIALLY TO THE CURVATURE OF THE OUTER PERIPHERY OF THE PATH CUT BY SAID CUTTING BLADES IN THE WORK AS THE WORK IS MOVED RELATIVELY WITH RESPECT TO THE CUTTERHEAD AXIS IN A DIRECTION PERPENDICULAR TO SAID AXIS AT A SPEED PROPERLY SYNCHRONIZED WITH THE SPEED OF ROTATION OF THE CUTTERHEAD, AND THE BOTTOMS OF SAID SLOTS AND THE INNER PERIPHERAL EDGES OF SAID KNIFE BARS IN SAID SLOTS CONSTITUTING ARCS OF IDENTICAL CIRCLES AND ARCS OF CIRCLES CONCENTRIC WITH THE CIRCLES OF THE ARCS OF SAID OUTER NON-CUTTING PERIPHERAL EDGES RERESPECTIVELY OF SAID KNIFE BARS.