Process and apparatus for producing squares from tree boles or t

Details Process and apparatus for producing squares from tree boles or t Process and apparatus for producing squares from tree boles or t

1992-04-13

1993-07-20

Bray, Donald

Woodworking

Process

Including monitoring of operation

83360, 83365, 83371, 83708, 144 3R, 144 39, 144377, 144378, 269308, B27B 100

Patent

active

052284905

ABSTRACT:
A process for producing beams of square cross-section from tree boles or the like is characterized in that plano-convex slabs are severed in parallel to the hart zone of the boles. An apparatus for performing the process is characterized in that the boles (2) are supported by height-adjustable supports (9, 10) in such a way that the heart zone (8) is congruent with the preferably horizontal feeding direction of the bole (2). Thereby, the thus-produced square beam (7) is defined by planes parallel to the heart zone.

REFERENCES:
patent: 4440203 (1984-04-01), Ostberg
patent: 4548247 (1985-10-01), Eklund
patent: 4572256 (1986-02-01), Rautio
patent: 4750535 (1989-06-01), Wolf
patent: 4772001 (1988-09-01), Hurdle, Jr.
patent: 4794964 (1989-01-01), Wolf
patent: 4867213 (1989-09-01), Bolton et al.
patent: 4907632 (1990-03-01), Reuter
patent: 4947909 (1990-08-01), Stroud
"Die Einschnitt-Zentren von Wurster & Dietz", L8302.

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