Woodworking – Process
Patent
1980-04-16
1982-05-04
Bray, W. D.
Woodworking
Process
144 39, 144312, 144 3R, 198344, B27C 108
Patent
active
043277896
ABSTRACT:
An improved method and apparatus for processing elongated logs to give maximum production of lumber is described wherein the log is initially cut to present four flattened faces thereon with wany edge regions between adjacent faces, followed by first partially milling the wany edge regions with severance of boards from opposed log faces, and thereafter completing the milling of the wany edge regions with subsequent removal of additional finished boards. Such stepwise partial milling of the wany edge regions materially increases the amount of lumber obtainable from a given log, as compared with prior practices. In preferred forms, the log is processed in an improved apparatus including log turning stations having a pair of pivotally mounted, opposed log-gripping arms; the respective arms are supported on a circular frame which is itself rotatable about the longitudinal axis of the log.
REFERENCES:
patent: 3259157 (1966-07-01), Runnion
patent: 3457978 (1969-07-01), Ahlstedt
patent: 3487866 (1970-01-01), Mitten
patent: 3738404 (1973-06-01), Walker
patent: 3920058 (1975-11-01), Walker
patent: 3934630 (1976-01-01), Cockle
Bray W. D.
Gebruder Linck Maschinenfabrik und Eisengiesserei "Gatterlinck"
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