Method and apparatus for cutting off defective portions of lengt

Details Method and apparatus for cutting off defective portions of lengt Method and apparatus for cutting off defective portions of lengt

1977-12-30

1979-08-14

Schran, Donald R.

Woodworking

With use of control means energized in response to activator...

Including use of sensor responsive to information carried by...

83361, 83367, 83521, 144 2R, 144323, 350285, B27B 100

Patent

active

041642481

ABSTRACT:
A method and apparatus for cutting portions having defects therein from lengths of timber includes determining an aligning distance for a given one of the lengths of timber as the timber length moves along a conveyor, the aligning distance being defined by the distance between a cutting line located next to the defect and one of a series of parallel lines which extend in the conveying direction, indexing the timber length in a direction transverse to the conveying direction to align the cutting line with one of the parallel lines and then incrementally moving the timber length in a direction transverse to the conveying direction a member of incremental distances determined by the particular one of the series of parallel lines with which the cutting line is aligned and cutting the timber length along the cutting line.

REFERENCES:
patent: 1476238 (1923-12-01), Bump
patent: 2918951 (1959-12-01), Haumann
patent: 3565140 (1971-02-01), Jacobsen
patent: 3736968 (1973-06-01), Mason
patent: 3890509 (1975-06-01), Maxey
patent: 3983403 (1976-09-01), Dahlstrom et al.
patent: 4023605 (1977-05-01), Hellstrom et al.
patent: 4093007 (1978-06-01), Hellstrom

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