Upright piano action

Details Upright piano action Upright piano action

1974-12-13

1976-03-30

Gonzales, John

Music

Instruments

Stringed

G10C 318

Patent

active

039466353

ABSTRACT:
An upright piano action includes a butt having a hammer, and a jack adapted to swing the butt, thereby permitting the hammer to strike a string, in which there is provided a butt spring means urging against the swinging movement of the hammer toward the string, the butt spring means not acting during the initial portion of the swinging movement of the hammer but acting from midway of the swinging movement thereof up to the point wherein the hammer strikes the string, so that a rapid, continual hammer striking operation is possible, attaining a delicate sound control as with the grand piano action.

REFERENCES:
patent: 3583271 (1971-06-01), Corwin et al.

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