Woodworking – Special-work machine – Combined
Patent
1980-07-10
1981-08-11
Bray, W. D.
Woodworking
Special-work machine
Combined
83666, 83672, 144176, 144188, 144193R, 144323, 144 34E, B27L 700
Patent
active
042829100
ABSTRACT:
A fingerling shear for shearing a length of wood in a plane transverse to the grain direction and for splitting the sheared length along the grain direction to form a plurality of fingerlings. The shear includes a planar shearing blade, supported for rotation about a generally vertical axis, the planar shearing blade including an involute cutting edge adapted to engage the elongated piece of wood during rotation of the blade and for shearing off a length of that piece of wood, and a plurality of splitting blades fixed to the lower surface of the planar shearing blade and spaced along the involute cutting edge, the splitting blades each including a leading cutting edge spaced from the involute cutting edge of the planar blade and extending tranversely to the lower surface, the cutting edges of the splitting blades being adapted to sequentially engage portions of the sheared length of the wood stock to sequentially split fingerlings from the sheared length.
REFERENCES:
patent: 1604158 (1926-10-01), Finsterwald
patent: 1895048 (1933-01-01), Rose
patent: 2663506 (1953-12-01), Vaughan
patent: 3392763 (1968-07-01), Ledergerber
patent: 3918476 (1975-11-01), Jasinski
patent: 3969966 (1976-07-01), Dillon
patent: 4053004 (1977-10-01), Barwise et al.
Haataja Bruce A.
Kilpela Tauno B.
Bray W. D.
Michigan Technological University
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