Static structures (e.g. – buildings) – With component having discrete prestressing means – Beam – girder – or truss construction
Patent
1977-08-15
1978-09-05
Perham, Alfred C.
Static structures (e.g., buildings)
With component having discrete prestressing means
Beam, girder, or truss construction
52741, 312264, 312257R, A47B 4700, E04C 310
Patent
active
041109465
ABSTRACT:
A furniture article such as a bookshelf unit has a pair of back panels which are arranged edge to edge in extension between upright side members. The outer edges of the panels are received in grooves formed in the sides. The combined width of the panels is greater than the distance between the side members so that the panels initially overlap at their inner edges. The panels are displaced to position their inner edges in butting engagement and are then snapped into a common plane with the edges remaining butted together to retain the panels under compression in the assembled condition.
REFERENCES:
patent: 290991 (1883-12-01), Lee
patent: 591275 (1897-10-01), Horn
patent: 2311951 (1943-02-01), Marshall
patent: 2615211 (1952-10-01), Gardner
patent: 2837393 (1958-06-01), Sitler
patent: 3077426 (1963-02-01), Johnston
patent: 3338627 (1967-08-01), Frank
AFP Corporation
Perham Alfred C.
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