Fabricated wood beam

Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Side-by-side terminus shafts; e.g. – truss

Patent

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Details

52729, 52730, E04C 302

Patent

active

040744981

ABSTRACT:
Plywood web members interconnect a pair of chord members by means of glued tongue and groove joints. There are two layers of said web members in face to face relation wherein tongues on the adjacent face veneers occupy a common intermediate groove in each chord member. Tongues on the outer face veneers are bent outward by splayed outer grooves in each chord member to form a self-locking dovetail type joint which holds the members together in assembled relation without external clamps while the glue is setting.

REFERENCES:
patent: 1377891 (1921-05-01), Knight
patent: 2981669 (1961-04-01), Brand et al.

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