Valve tuning system for the brass musical instruments

Details Valve tuning system for the brass musical instruments Valve tuning system for the brass musical instruments

1975-08-08

1977-09-13

Franklin, Lawrence R.

Music

Instruments

Wind

G10D 904

Patent

active

040474593

ABSTRACT:
A valve tuning system for a brass musical instrument having a single valve housing, a single valve body, which may be in several parts, a basic pipe and a plurality of by-pass pipes connected to the housing. A plurality of air-pipes or passages are formed in the valve body and a plurality of tuning keys are operable to move the valve body to a plurality of switch-over positions such that various combinations, or all, of the air-pipes and by-pass pipes may be connected in series with the basic instrument pipe to yield a temperament ratio without significant aberrations.

REFERENCES:
patent: 12628 (1855-04-01), Hammer
patent: 1222285 (1917-04-01), Hamblen
patent: 1244745 (1917-10-01), King
patent: 1642783 (1927-09-01), Lehmann
patent: 2003995 (1935-06-01), Einhorn
patent: 2288743 (1942-07-01), Reed
patent: 2794358 (1957-06-01), Meredith
patent: 3175449 (1965-03-01), Kravka
patent: 3641863 (1972-02-01), Kanstul et al.

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