Gear-adjustable bridge

Details Gear-adjustable bridge Gear-adjustable bridge

1986-11-05

1987-08-25

Franklin, Lawrence R.

Music

Instruments

Stringed

84267, 84299, 84312R, 84313, G10D 304

Patent

active

046884610

ABSTRACT:
The bridge of a guitar includes a movable bridge plate normally pivotable relative to the body of the guitar so as to change the string tension and produce a tremulous tone effect. Alternatively, the bridge-mounting plate can be locked in fixed position relative to the remainder of the guitar. A low friction mounting for the bridge-mounting plate consists of a linear, sharpened leading end or ends of the plate received in a linear transverse groove or grooves of a mounting flange. Preferably, the pivot axis of the bridge plate lies in a vertical plane closely adjacent to the location where the guitar strings cross the bridge so that pivoting movement of the bridge plate to produce the tremulous tone effect does not result in a large change of the height of the strings above the guitar body. A separate saddle is provided for each string and gear-actuated adjustment mechanism is operable to adjust the longitudinal position of each saddle. Mechanism is provided at the bridge for fine-tuning the strings and includes a separate bell crank for each string.

REFERENCES:
patent: 2714326 (1955-08-01), McCarty
patent: 4064780 (1977-12-01), Bond
patent: 4430919 (1984-02-01), Matsui
patent: 4487100 (1984-12-01), Storey
patent: 4638711 (1987-01-01), Stroh

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