Woodworking – Rotary cutter – Solid
Patent
1988-06-24
1989-07-25
Bray, W. Donald
Woodworking
Rotary cutter
Solid
144176, 241 92, 241298, 407 48, B27C 710, B27G 1300
Patent
active
048504084
ABSTRACT:
Chipper apparatus including a rotating disc with one or more knives mounted on the disc operable to produce wood chips under the cutting action of the knives. Each knife comprises an elongate knife body bounded by opposed cutting edges. The knife includes a back side formed back knife surfaces extending inwardly on the knife from its cutting edges and the back knife surfaces meeting with a bearing surface. The front side of the knife includes front knife surfaces extending inwardly on the knife from its cutting edges joining with an elongated key-receiving channel indented inwardly into the knife body. A knife is mounted on a rotatable chipper disc through a clamp member which bears against the bearing surface of a knife and a counter-knife which supports the front side of the knife and which includes an elongate key portion fitting within the key-receiving channel of the knife.
REFERENCES:
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patent: 4047670 (1977-09-01), Svensson
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patent: 4557305 (1985-12-01), Berger et al.
patent: 4669516 (1987-06-01), Carpenter et al.
1 p. of Drawings of Admitted Prior Art of a Reversible Knife.
Bayly Robert M.
Carpenter Charles T.
Bray W. Donald
Commercial Knife, Inc.
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