Static structures (e.g. – buildings) – Identical blocks or modular panels fitted to reversed blocks...
Patent
1977-01-06
1978-08-15
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Identical blocks or modular panels fitted to reversed blocks...
52595, 217 65, 217 96, E04C 104
Patent
active
041062540
ABSTRACT:
A lengthwise miter joint and boards for forming it have mating effective V-tongue and -groove portions in their miter faces for positive registered alignment of the joint while it is being permanently fastened as by gluing, nailing, etc. The tongue and groove portions are centered widthwise of their respective miter faces so that the same boards may be selectively assembled either in angular or aligned relation to each other. The effective included angles of the tongue and groove provide registered angular assembly of the joint with a single rectilinear motion of one board perpendicular to the flat sides of that board. The effective V-tongues and -grooves characteristically provide relatively strong shapes to both boards in a joint.
REFERENCES:
patent: 589836 (1897-09-01), Koll
patent: 756261 (1904-05-01), Miller
patent: 2457982 (1949-01-01), Deichmann
patent: 2877506 (1959-03-01), Almoslino
Dargan Evander E.
Jack Clyde A.
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