Method of processing curved logs

Details Method of processing curved logs Method of processing curved logs

1983-12-01

1985-10-22

Bray, W. D.

Woodworking

Process

Including monitoring of operation

83 71, 831021, 83367, 834253, 144 39, 144246R, B27B 100

Patent

active

045482470

ABSTRACT:
A crude curved log with an essentially circular cross-section is before a first machining cycle in a working machine fixed in a rotary condition where the longitudinal sectional plane comprising the maximum curvature is horizontal, and is then measured and processed along curved paths determined in a computer unit on the basis of the measured curvature. Thereafter the central block, thus obtained is processed, in a second cycle along paths having the same curvature as the first cycle by utilizing the same command signals as in the first cycle are used, possibly with a correction for changed lateral position of the block.

REFERENCES:
patent: 4127044 (1978-11-01), Kenyon
patent: 4139035 (1979-02-01), Bystedt et al.
patent: 4144782 (1979-03-01), Lindstrom
patent: 4239072 (1980-12-01), Merilainen
patent: 4373563 (1983-02-01), Kenyon
patent: 4440203 (1984-04-01), Ostberg
patent: 4449557 (1984-05-01), Makela et al.

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