E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
20/48
E04C 3/14 (2006.01) B27M 3/00 (2006.01)
Patent
CA 1065116
ABSTRACT OF THE DISCLOSURE 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.
289465
Keller James R.
Nickerson William A.
LandOfFree
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