Wood chipper

Details Wood chipper Wood chipper

1980-01-21

1981-11-03

Bray, W. D.

Woodworking

Slicer

Rotary disk

144241, 241 92, B27C 710

Patent

active

042980445

ABSTRACT:
A wood chipper embodying a pair of adjacent discs mounted in face-to-fact relation on a drive shaft for rotation therewith. The discs are secured to each other and have angularly spaced aligned passageways therethrough. A recess is provided in one disc at the trailing side of each angularly spaced passageway, as viewed in the direction of rotation. A knife holder mounted within each recess carries a knife which is retained by a knife clamp. Interlocking means between the clamp and the knife holder limits relative movement therebetween both axially and radially to maintain accurate location of the knives. The end of the knife holder removed from the aligned passageways is spaced from its disc to define a cavity which receives babbit. Also, the edge of the knife opposite its cutting edge is spaced from the knife holder and may have slots which extend at an angle relative to the cutting edge to define cavities which receive babbit. The inner surface of the knife clamp flares outwardly at an angle away from the cutting edge of the knife to press the clamp against the knife near the cutting edge thereof.

REFERENCES:
patent: 2337407 (1943-12-01), Ottersland
patent: 2697557 (1954-12-01), Durkee
patent: 2712904 (1955-07-01), Durkee
patent: 2922590 (1960-01-01), Bland
patent: 3061207 (1962-10-01), Clark
patent: 3280865 (1966-10-01), Alexander
patent: 3356114 (1967-12-01), Noel
patent: 3542302 (1970-11-01), Salzmann, Jr.
patent: 4047670 (1977-09-01), Svensson
patent: 4155384 (1979-05-01), Svensson

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