Wind instrument with link mechanism for transmitting lever actio

Details Wind instrument with link mechanism for transmitting lever actio Wind instrument with link mechanism for transmitting lever actio

1992-02-04

1993-08-24

Gellner, Michael L.

Music

Instruments

Wind

84390, 84393, 251279, 403 24, 411302, 411338, G10D 900

Patent

active

052379027

ABSTRACT:
A wind instrument is equipped with rotary valve units or keys for changing the length of vibrative air column, and a link mechanism transmits a lever action to the rotary valve unit or the key, wherein a joint incorporated in the link mechanism comprises a shaft member having an external thread and coupled with the manipulating lever, an adjustable screw member with an internal thread, a tubular member actuating the rotary valve unit or the key and retained by the adjustable screw meshed with the external thread, and an elastic member inserted between a bottom surface of the tublar member and a leading end of the external thread portion so that gaps on both sides of the tubular member are adjustable, thereby allowing the tubular member to smoothly rotate.

REFERENCES:
patent: 2036356 (1936-04-01), Pedler
patent: 3237504 (1966-03-01), Leblanc
patent: 4297063 (1981-10-01), Hart

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