Sawing of lumber from logs

Details Sawing of lumber from logs Sawing of lumber from logs

1981-01-29

1983-02-15

Schran, Donald R.

Woodworking

Process

Including monitoring of operation

144242E, 144246F, 144249A, 83446, 83425, 83367, B27B 100

Patent

active

043735630

ABSTRACT:
The sawing of an elongated workpiece, such as a log or cant, is effected by feeding the workpiece longitudinally through a saw; sensing the longitudinal configuration of a longitudinal side surface of the workpiece on one side only of the workpiece as the latter passes through the saw; and orientating the workpiece relative to the saw in accordance with the sensed configuration to saw the workpiece longitudinally substantially parallel to the sensed configuration. For the sawing of a crooked workpiece, the configuration of a longitudinally extending concave side surface is sensed and the workpiece is sawn "round the curve" substantially parallel to the sensed concave configuration.

REFERENCES:
patent: 259661 (1882-06-01), Bowker
patent: 1263443 (1918-04-01), Lien
patent: 2785715 (1957-03-01), Brundell et al.
patent: 3386564 (1968-06-01), Pease
patent: 3456774 (1969-07-01), Blickenderfer et al.
patent: 3621972 (1971-11-01), Reuter
patent: 3665984 (1972-05-01), Ackerfeldt
patent: 3685556 (1972-08-01), Van Sickle
patent: 3844398 (1974-10-01), Pinat
patent: 3844399 (1974-10-01), Seller et al.
patent: 3858631 (1975-01-01), Andersson et al.
patent: 4144782 (1979-03-01), Lindstrom

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