Musical instrument

Details Musical instrument Musical instrument

1980-06-10

1982-06-29

Franklin, Lawrence R.

Music

Instruments

Wind

G10D 904

Patent

active

043367380

ABSTRACT:
A brass instrument having multiple tuning slide valve blocks is provided with a unique pair of directional air control valves for selecting one tuning slide valve block. The directional air control valves have rotating valve blocks that are disposed on a common axle to be rotated together. A novel lever mechanism biases the axle in a normal position in which the primary tuning slide valve blocks are connected between the mouthpiece and the sound funnel. The lever mechanism permits the rotation of the axle to cause the direction control valves to connect either of the secondary tuning slide valve blocks between the mouthpiece and sound funnel.

REFERENCES:
patent: 2484408 (1949-10-01), Hubley
patent: 4047459 (1977-09-01), Nakamura
patent: 4127050 (1978-11-01), Takeuchi
patent: 4213371 (1980-07-01), Thayer

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