B - Operations – Transporting – 27 – L
Patent
B - Operations, Transporting
27
L
29/42, 144/87
B27L 11/02 (2006.01) B27L 11/00 (2006.01)
Patent
CA 1158964
ABSTRACT OF THE DISCLOSURE A knife holder for use in connection with wood chippers of the type comprising a rotary disc whereof one face is fit- ted with substantially radially positioned knives which are attached thereto by means of knife holders incorporating a log guiding surface. To give a twisted form to one face of the knife holders the latter are fabricated by surface grind- ing of the log guiding face while the knife holder is clamp- ed in a grinding fixture in a state of torsion which, after removal from the grinding fixture, gives the desired twisted shape to the log guiding face. After removal from the grind- ing fixture the knife holder is clamped in a torsion-free state in the chipping disc.
366653
Lindmark Gunnar
Sundberg Ake
Iggesund Tools Ab
Piasetzki & Nenniger Llp
LandOfFree
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