Wood I-beam and method of fabricating the same

Details Wood I-beam and method of fabricating the same Wood I-beam and method of fabricating the same

1982-09-29

1984-06-26

Murtagh, John E.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

428120, 144354, 144352, 52729, 52730, 156258, 156263, 156293, B32B 3100

Patent

active

044564970

ABSTRACT:
A wood I-beam consists of a web and a pair of parallel flange pieces which are joined to opposite edges of the web. The web has a kerf cut into each of its opposite edges, thereby dividing each edge into a pair of legs. Each flange piece, on the other hand, has a tapered groove cut into it. After glue is applied to the tapered side walls of the grooves for the flange pieces, the opposite edges of the web are inserted into the grooves and then the two flange pieces are forced together. The taper and width of the grooves in the flange pieces is such that the side walls of the grooves bend the legs on the end edges of the web together against the natural resiliency of the wood. As a result, the web edges are urged against the side walls of the groove with sufficient force to enable the glue to set-up into an extremely strong bond.

REFERENCES:
patent: 1030939 (1912-07-01), Sturgis
patent: 1920021 (1933-07-01), Schroeder
patent: 2123081 (1938-07-01), Sadenwater
patent: 3490188 (1970-01-01), Troutner
patent: 3991535 (1976-11-01), Keller et al.
patent: 4336678 (1982-06-01), Peters

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