Woodworking – Veneer lathe – Presser bar or roll
Patent
1989-03-21
1990-02-20
Bray, W. Donald
Woodworking
Veneer lathe
Presser bar or roll
144209R, 144365, B27L 502
Patent
active
049017772
ABSTRACT:
There is disclosed a veneer lathe comprising a pair of spindles one of which spindles is powered to impart rotating torque to the log and the other of which is non-powered and rotatable with the log, means for detecting the rotation of the non-powered spindle and providing a detect signal, and control means which is operable in response to the detect signal to control the knife carriage feed. The lathe further includes means for detecting the rotation of the powered spindle and providing a detect signal, and means for comparing the detect signals from the two detecting means and providing a control signal, if the difference in angular velocity between the spindles exceeds a predetermined value, thereby to cause the knife carriage to stop its feeding operation.
REFERENCES:
patent: Re31786 (1985-01-01), Hasegawa
patent: 3349820 (1967-10-01), Nagaoka
patent: 4221247 (1980-09-01), Katsuji
patent: 4263948 (1981-04-01), Hasegawa
Bray W. Donald
Meinan Machinery Works Inc.
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