Veneer lathe scanning system

Details Veneer lathe scanning system Veneer lathe scanning system

1980-09-29

1982-11-02

Bray, W. D.

Woodworking

Veneer lathe

144209A, 367 96, B27B 100

Patent

active

043568505

ABSTRACT:
A pair of sonic transducers are mounted above a peeler block on a veneer lathe, adjacent opposite ends of the block. Bursts of sonic energy are directed downward to strike the surface of the block such that sonic energy is reflected from the block surface to the transducers. The distance from the transducers to the axis of rotation of the lathe spindle upon which the block is mounted is known and, as a consequence, the radius of the peeler block may be determined in response to the ultrasonically measured distance from the transducers to the block surface. A series of radius measurements may be made as the block is rotated on the lathe spindle. Additionally, measurements may be made when a log is first loaded onto the lathe, after the log is rounded up, and after peeling of the block is completed.

REFERENCES:
patent: 3513321 (1970-05-01), Sherman
patent: 3736968 (1973-06-01), Mason
patent: 3746065 (1973-07-01), Mason
patent: 3806253 (1974-04-01), Denton
patent: 3852579 (1974-12-01), Sohn et al.
patent: 3992615 (1976-11-01), Bennett et al.
patent: 4139035 (1979-02-01), Bystedt et al.
patent: 4152767 (1979-05-01), Laliotis

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