Cutting tool with removable blades

B - Operations – Transporting – 27 – G

Patent

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B27G 13/00 (2006.01) B23C 5/00 (2006.01) B27G 13/04 (2006.01)

Patent

CA 1229970

ABSTRACT OF THE DISCLOSURE: A cutting tool with removable blades, comprising a stack of discs each having at least a cut opened on its periphery, and clamping means compressing the stack of discs. The angular position of the discs relative to each other is such that, in working position, the cuts form at least one peripheral longitudinal housing. At least a blade, the cutting edge of which is situated on a diameter longer than the external diameter of the discs is fixed in at least one of the housings by means of a locking ele- ment disposed in the housing parallel to the blade. The size of the cut is such that the blade and the locking element are introduced with clearance in the longitudinal housing formed by the cut. The locking element is an elon- gated wedge which bears against the blade when the tool is rotated. The wedge has means including wedge surfaces that converge in a radially outward direction whereby cen- trifugal force causes the wedge to lock said blade by jam- ming when the tool is rotated.

446071

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