Music – Instruments – Stringed
Patent
1997-07-15
1999-08-10
Shoop, Jr., William M.
Music
Instruments
Stringed
84255, 84426, G10C 300
Patent
active
059361727
ABSTRACT:
A mechanism including a sustaining bar (112) directly engaging a row of damper supports (104); and a harmonic bar directly engaging a row of escapements (13) each of which is combined with one of the damper supports. Both bars (111, 112) are actuated by a common pedal (1) to which they are connected by a linkage system (18, 20, 5) linking the movement of the harmonic bar (111) to that of the sustaining bar (112) so that when the pedal is depressed beyond a so-called "harmonic" position in which the pedal is half-depressed, the sustaining function is applied to all the notes whose keys are depressed, and once the pedal has been fully depressed and is therefore in a so-called "forte" position, then very slightly released, all the escapements are in engagement with the harmonic bar.
REFERENCES:
patent: 4852445 (1989-08-01), de La Rochefordiere
patent: 5287787 (1994-02-01), Satoshi
Denis M.X. de la Rochefordiere
Eric Drulang
Hsieh Shih-yung
Shoop Jr. William M.
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