Patent ID: 7055562

Claim:
An apparatus for comminuting a stack of wood boards to produce wood strands, said apparatus comprising: a wood board stack feeder for advancing a stack of wood boards in a direction; a chipper chamber at an end of said feeder receiving an end of said stack and delimited at a bottom by a bottom structure and at a top by a cover segment; a longitudinal wood chipper at said end of said feeder comprising a guide extending longitudinally transverse to said direction and to the boards of said stack, and a blade ring displaceable along said guide and through said chipper chamber from one side of a chipping path to an opposite side of said chipping path at which said stack is supported by a cantilevered abutment projecting into said chamber, whereby blades of said ring comminute said end of said stack into wood strands in said chipper chamber; and respective upper and lower replaceable and removable filler bodies on said cover segment and on said bottom structure in said chamber for reducing free space therein by a predetermined amount, said upper and lower filler bodies on said cover segment and said bottom structure have at respective edges turned toward said blade ring on said one side of said chipping path having edges rounded to correspond to the internal radius of the chipping path.