Woodworking – Special-work machine
Patent
1988-12-28
1989-08-22
Bray, W. Donald
Woodworking
Special-work machine
144362, 83867, B27M 102
Patent
active
048586609
ABSTRACT:
An apparatus for applying perforations to wood surfaces is disclosed. The apparatus includes a drum having interspaced incisor rings mounted thereto and a plurality of cleaning members for removing wood residues from the incisor ring teeth. Each cleaning member projects into a space between adjacent incisor rings and is irrotatably secured to the mounting platform of the apparatus. The rotation of the incisor rings relative to the fixed positioning of the cleaning members brings the side surfaces of the teeth into progressive engagement with the adjoining side surfaces of cleaning members creating a scissor action across the teeth surfaces which effectively removes wood residues from the teeth. The apparatus provides for the removal of wood residue away from the spacer rings located in the space between adjacent incisor rings using cleaning members having tapered projections for directing such residue into pockets defined therein. The invention also allows for the removal of individual cleaning members for repair or replacement witout disengaging the remaining cleaning members associated with that drum.
REFERENCES:
patent: 2684089 (1954-07-01), Graham et al.
patent: 4706722 (1987-11-01), Silcox
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