Adjustable bridge system for acoustical stringed instruments

Details Adjustable bridge system for acoustical stringed instruments Adjustable bridge system for acoustical stringed instruments

1991-08-28

1994-09-20

Gellner, Michael L.

Music

Instruments

Stringed

84731, G10D 304

Patent

active

053479050

ABSTRACT:
A bridge assembly for a guitar mounted on a soundboard cover of a resonating box, the bridge assembly comprising a bridge fixed on the soundboard cover, a block-like platform secured to the bridge and transversely spaced saddles on which the guitar strings pass under tension. The strings contact the saddles at points of support and establish vibration lengths of the strings. The strings undergo change of angle at their points of support to apply force along a line of action passing through the platform to the soundboard cover and the resonating box. The saddles are connected to the platform for adjustment longitudinally of the strings to vary the vibration length of the strings and thereby effect string length fine tuning. At the end positions of adjustment of the saddles, and for all positions therebetween, forces applied by the strings will be directed to pass to the soundboard cover either directly through the platform or through a thin portion of the bridge on which the platform rests. The force acts in a direction substantially perpendicular to the upper surface of the thin portion of the bridge. A transducer can be interposed between each saddle and the platform and resiliently clamped therebetween.

REFERENCES:
patent: D259119 (1981-05-01), Quan
patent: 2491788 (1949-12-01), Widowson
patent: 3453920 (1969-07-01), Scherer
patent: 4366740 (1983-01-01), Tripp
patent: 4538498 (1985-09-01), Marten
patent: 4768414 (1988-09-01), Wheelwright
patent: 4911057 (1990-03-01), Fishman
patent: 4951543 (1990-08-01), Cipriani
patent: 5052260 (1991-10-01), Cipriani
patent: 5092213 (1992-03-01), Cipriani

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