Method of aging felled trees and treating lumber

Details Method of aging felled trees and treating lumber Method of aging felled trees and treating lumber

1980-11-24

1982-10-19

Bray, W. D.

Woodworking

Process

Timber harvesting or processing

144364, 427440, 427441, 428541, B27H 100

Patent

active

043545386

ABSTRACT:
Lumber, which is substantially warp-free and check-free and has a reduced susceptibility to decay and insect damage, particularly red alder, beech, birch, cottonwood, maple, oak, aspen and hemlock, is produced by felling the tree, preferably when in substantially full leaf; long butting the tree trunk; sealing the butt end surface to deter decay and attack by insects, and reducing the sap content by allowing the unlimbed tree to age for a minimum of six weeks; sawing the tree into lumber; purging additional sap from the lumber by soaking it with high-pressure water sprays periodically for a minimum of three days; and drying the lumber. Mold and other deterioration is deterred in wood chips which are to be stored by soaking, pressing and washing them. Red staining of alder lumber in patterns can be obtained by only partially sealing the butt end of a felled tree or holding the lumber for a time in a stagnant air environment before drying lumber cut from a felled red alder tree whether or not it has not been aged.

REFERENCES:
patent: 1025628 (1912-05-01), Illingworth
patent: 1051596 (1913-01-01), Illingworth
patent: 1556570 (1925-10-01), Coolidge
patent: 1732419 (1929-10-01), Rice
Agriculture Handbook No. 528, 9/78, p. 5, Drying Eastern Hardwood Lumber, "Stock Preparation and Stacking".

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