Action mechanism of an upright piano

Details Action mechanism of an upright piano Action mechanism of an upright piano

1987-09-08

1989-08-08

Hix, L. T.

Music

Instruments

Stringed

84253, G10C 318

Patent

active

048542113

ABSTRACT:
An action mechanism for a upright piano includes a back check mechanism having a back check member provided on the horizontal arm of a hammer arranged to strike a string and a hammer check disposed upright on a wippen constituting an escapement mechanism. With an upright piano incorporating this back check mechanism, it is possible to satisfactorily produce a rapid repetition of a tone with a sound quality approximately that which up until now could only be provided with a grand piano.

REFERENCES:
patent: 179029 (1876-06-01), Koth
patent: 204752 (1878-06-01), Neill
patent: 426332 (1890-04-01), Schaaf
patent: 896763 (1908-08-01), Schimmel
U.S. patent application Ser. No. 815,458, filed 1/2/86, Bafunno Pasquale.

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