Device for changing the timbre of a stringed instrument

Details Device for changing the timbre of a stringed instrument Device for changing the timbre of a stringed instrument

1997-05-08

1999-03-16

Shoop, Jr., William M.

Music

Instruments

Stringed

84307, 84309, G10D 300

Patent

active

058833188

ABSTRACT:
A device for changing the timbre of a stringed instrument of the violin or viol family. The device includes a plurality of sympathetic strings, rigidly fixed at opposite ends in a frame suspended over a sound board of the instrument. A javari bridge is mounted on the sound board, a distance from a main bridge, with the sympathetic strings passing over the javari bridge. When the sympathetic strings are set into vibration by the main strings, the javari bridge brings out upper harmonic vibrations in the sympathetic strings, changing the timbre of the instrument. The javari bridge also makes the upper harmonic vibrations more audible and shortens the period of vibration, avoiding the dissonance associated with sympathetic strings strung over a conventional bridge. When the javari bridge is stepped, the sympathetic strings may be strung in tiers, allowing more strings to be strung in less space and expanding the harmonic sounds produced by the instrument.

REFERENCES:
patent: 104324 (1870-06-01), Knox
patent: 1110654 (1914-09-01), Speer
patent: 1214075 (1917-01-01), Rice
patent: 1489710 (1924-04-01), Olsen
patent: 1513159 (1924-10-01), Cremer
patent: 1588730 (1926-06-01), Hessel
patent: 2473980 (1949-06-01), Willner
patent: 2741937 (1956-04-01), Auville et al.
patent: 4122745 (1978-10-01), Darias Paya
patent: 4282792 (1981-08-01), Voorthuyzen

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