Woodworking – Bark rosser – Hollow head cutter
Patent
1998-02-19
1999-04-13
Bray, W. Donald
Woodworking
Bark rosser
Hollow head cutter
144241, 144341, 407 48, 407103, B27L 100
Patent
active
058934014
ABSTRACT:
The invention concerns a barking tool for barking machines of the type having a plurality of swinging arms, each being at an inner end pivotally mounted on an annular rotator which is rotatable about an axis of rotation, and each having at a free outer end a processing edge. The processing edge is defined between a front and a top surface, which is adapted, during barking, to make an acute angle with the circumferential surface of the log. The barking tool further has a bead, which is located on the top surface in an area adjacent to the end of the processing edge furthest down in the feeding direction. The bead is essentially arcuate in such a manner that its height above the top surface successively increases from an area adjacent to the processing edge perpendicularly backwards therefrom and, more specifically, the height is adapted such that the bead during normal barking is positioned between a certain minimum and a certain maximum, and preferably essentially uniform, distance from the barked circumferential surface of the log independently of its diameter.
REFERENCES:
patent: 3026919 (1962-03-01), Lunn
patent: 3282310 (1966-11-01), Morenius et al.
patent: 4122877 (1978-10-01), Smith et al.
patent: 4852622 (1989-08-01), Eriksson
patent: 5460212 (1995-10-01), Darden et al.
Bray W. Donald
Iggesund Tools AB
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