Keyboard instrument having soundboard with unconstrained edges

Details Keyboard instrument having soundboard with unconstrained edges Keyboard instrument having soundboard with unconstrained edges

1992-03-13

1994-08-23

Gellner, Michael L.

Music

Instruments

Stringed

84195, 84196, 84294, G10C 306

Patent

active

053397177

ABSTRACT:
To obtain a smaller piano having a larger piano sound, there is constructed a piano having a modified construction in reference to its sounding board and the means for mounting it. Instead of being provided with the usual eight to ten strengthening ribs on its back side and having all of its four edges entirely secured to the piano case, the sounding board in the modified construction of the invention is mounted so that it has, in effect, a greater opportunity to float, in that it has at least one opposed pair of edges which are at least in major part, if not entirely, unconfined, and there are used to maintain its crown some lesser number, such as three or only one, of strengthening ribs, major reliance for maintaining the crown being placed upon a centrally situated wood or metal wedge member.

REFERENCES:
patent: 591759 (1897-10-01), Hambloch
patent: 750248 (1904-01-01), Brashears
patent: 1351709 (1920-08-01), Virzi
patent: 3757026 (1973-09-01), Carbone
patent: 3785237 (1974-01-01), Schutze

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