Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1979-10-23
1982-02-09
Wityshyn, Michael G.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
144314A, 144317, 156264, 156266, 1563045, 1563041, 156546, 156555, 156558, 156559, 156578, 156580, B27G 1100, B32B 3112, B32B 3120
Patent
active
043148719
ABSTRACT:
The invention relates to a method of and apparatus for laminating timber to form beams for use in structural and other uses. The beam is formed from timber strips forced through a set of pressure means comprising preferably pressure rollers in a side by side relationship with bonding medium applied to the vertical sides of the strips. These sides preferably have interengaging castellations formed thereon for improved connection between the strips. The strips are formed from timber lengths which are connected together preferably by finger jointing. The bonding medium is applied to the side faces of the timber lengths and to the ends at the same time. A braking system ensures that the ends of timber lengths are spaced well apart to enable adequate bonding medium to be applied to the timber length ends. The timber lengths are forced forwardly by an oscillating hydraulic cylinder acting through clamps to ensure that the ends of the timber lengths engage firmly and also to provide substantial forces for urging the strips through the pressure rolls.
REFERENCES:
patent: 2486213 (1949-10-01), Schulerud
patent: 2617456 (1952-11-01), Winkel
patent: 2708649 (1955-05-01), Cunningham
patent: 2729584 (1956-01-01), Foster
patent: 3131737 (1964-05-01), Pearl
patent: 3388020 (1968-06-01), Gates
patent: 4101370 (1978-07-01), Russell
patent: 4123315 (1978-10-01), Keller et al.
patent: 4128119 (1978-12-01), Maier
Bregman Harry L.
Weinstock Harry
Weinstock Harry
Wityshyn Michael G.
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