Trill mechanism for wind instrument

Details Trill mechanism for wind instrument Trill mechanism for wind instrument

1989-01-23

1989-11-28

Hix, L. T.

Music

Instruments

Wind

84380R, G10D 702

Patent

active

048829684

ABSTRACT:
A trill mechanism for a wind instrument such as a flute or a piccolo which assures production of clear sounds of a stabilized tune with a clear fundamental tone with minimized noises upon trill playing and production of a D' (D"#) tone with a sound volume substantially equal to that of the other tones (about three times that of the D' (D"#) tone with a conventional trill mechanism). The trill mechanism comprises a middle joint in the form of a hollow tube having a single trill tone hole bored at a particular location thereof, a trill cup mounted on the middle joint for movement from and to a closing position in which the trill cup closes the trill tone hole of the middle joint, and a spring for urging the trill cup to the closing position. The trill cup can be manually moved alternatively to a first and second open position in which the trill tone hole of the middle joint is open with a first opening or with a second opening which is greater than the first opening.

REFERENCES:
patent: 901913 (1908-10-01), Julliot
patent: 1586794 (1926-06-01), Gage
patent: 4376403 (1983-03-01), Haedrich et al.

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