Music – Instruments – Stringed
Patent
1990-02-20
1991-06-11
Brown, Brian W.
Music
Instruments
Stringed
G10C 318
Patent
active
050223020
ABSTRACT:
The invention relates to a damper mechanism for upright piano, comprising a damper felt mounted on a damper wood, and in which the damper wood is equipped with a guide stem directionally adjusted perpendicularly to the plane of the strings and guided to move reciprocally in a bore of a block fixed on a support independent of the mechanism controlling the hammers. Members are interposed between the key and the damper guide stem for reciprocally moving the latter in response to the movement of the key.
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
patent: 1104282 (1914-07-01), Severy et al.
patent: 4854211 (1989-08-01), Tanaka et al.
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