Wooden receptacles – Boxes – Joints
Patent
1977-05-25
1979-11-06
Shoap, Allan N.
Wooden receptacles
Boxes
Joints
52284, 217 12R, 403231, 403381, B65D 932
Patent
active
041732871
ABSTRACT:
Boards for wooden packing cases with the shape of a parallelepiped, having connecting elements in the form of tenons and mortises that alternate at regular intervals on the edges of the rectangular hexahedron thereof. Each edge is connected with the others by the tenons and mortises. The pitches of these elements are calculated according to the invention from the overall lengths of the respective edge by a novel method so that the mortise-and-tenon connections have bilateral symmetry about a central point of the overall lengths of the edges. A plurality of the connections has an equal basic pitch in a bilaterally symmetrical arrangement, and the invention provides either a pair of tenons (or mortises) at the ends of the edges or a single tenon (or mortise) at the center, with a different pitch, calculated by the novel method. In addition to the novel boards and the method of making the same, the invention also relates to packing cases made therefrom.
REFERENCES:
patent: 3591212 (1971-07-01), Rhyne
patent: 3692201 (1972-09-01), Garduna
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