Piano soundboard and method of making same

Details Piano soundboard and method of making same Piano soundboard and method of making same

1981-02-13

1982-11-30

Bray, W. D.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

144346, 156258, B27D 100

Patent

active

043614582

ABSTRACT:
A soundboard for a piano comprises three plies of wood bonded together, the front and back plies being of substantially equal thickness and the center ply being of a thickness greater than the sum of the thicknesses of the front and back plies. The center ply comprises a plurality of elongate boards each having a preselected curvature from side-to-side, these boards are bonded together edge-to-edge with the curvature of each board in the same direction to form a composite board having a substantially continuous curvature, concave on one side and convex on the other side. Consequently, the assembled, three-ply soundboard has a curvature imparted thereto by the center ply.

REFERENCES:
patent: 89806 (1869-05-01), Stirn
patent: 472878 (1892-04-01), Hinze
patent: 2469522 (1945-05-01), Sauerland
patent: 3444771 (1966-12-01), Taguchi
patent: 3580760 (1971-05-01), Koch
patent: 3969558 (1976-07-01), Sadashige

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