Rim driven rotary cutter and tree felling head incorporating the

Details Rim driven rotary cutter and tree felling head incorporating the Rim driven rotary cutter and tree felling head incorporating the

1986-01-21

1987-09-01

Bray, W. D.

Woodworking

Special-work machine

Tree felling

83640, 83643, 144 3D, A01G 2308, B27B 514

Patent

active

046901850

ABSTRACT:
A rim driven circular saw and a drive pinion rotatable about respective ones of a pair of spaced apart parallel axes wherein each of the saw and pinion having projections of gear tooth form about the outer periphery thereof with the teeth of one meshing with those of the other. The teeth on the saw each have a cutting edge set back from the normal intersection of the face and the top land of the teeth. The saw is journalled for rotation on a plate carried by a rigid frame and the plate has a thickness at least no greater than the kerf generated by the saw. The pinion is fabricated from a non-metallic substance such as nylon. Also disclosed is an accumulator type tree felling head incorporating, as the cutting device, a saw of the foregoing type.

REFERENCES:
patent: 1179910 (1916-04-01), Greenfield
patent: 2804105 (1957-08-01), Stone
patent: 3808685 (1974-05-01), Santilli
patent: 3915209 (1975-10-01), Denis
patent: 4446897 (1984-05-01), Kurelek
patent: 4491163 (1985-01-01), Kurelek
patent: 4593733 (1986-06-01), Hamilton

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