Method and apparatus for the chipping dissection of tree logs in

Details Method and apparatus for the chipping dissection of tree logs in Method and apparatus for the chipping dissection of tree logs in

1980-04-16

1982-06-22

Bray, W. D.

Woodworking

Process

Mechanical cutting or shaping

144 3R, 144378, 144 39, B27C 910

Patent

active

043357679

ABSTRACT:
An improved method and apparatus for efficiently producing machined lumber products such as boards and squared timber is described wherein, after initial four-sided planing of a log, the remaining wany edge regions are milled using saw/chipper units which present, at each milled region, a relatively smooth and a relatively rough surface. The final step in log processing involves sawing the log along the plane of the rough milled surfaces so as to yield a pair of substantially smooth, severed boards, as well as a smooth central timber or cant. The apparatus includes respective, carriage-mounted, shiftably adjustable heads (each having a chopping tooth member and an adjacent saw blade of substantially the same diameter) along with cooperating second saw blades.

REFERENCES:
patent: 3486541 (1969-12-01), Nilsson
patent: 3552457 (1971-01-01), Bos
patent: 3742993 (1973-07-01), Morton et al.
patent: 3880215 (1975-04-01), Mallery
patent: 4009741 (1977-03-01), Zimmerman
patent: 4239069 (1980-12-01), Zimmerman
patent: 4239072 (1980-12-01), Merilainen

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