Music – Instruments – Stringed
Patent
1976-02-03
1978-03-07
Franklin, Lawrence R.
Music
Instruments
Stringed
74526, G10D 314
Patent
active
040772969
ABSTRACT:
A transforming means in a tone changer device for transforming an amount of translational movement of an actuator means to a different or lesser amount of movement to be applied to a rotatable bar member dependently connected for pivoting a pivotable member whereby the tension in a string attached to the pivotable member is varied. A translational movement apparatus connected by control rods to the actuator means may supply approximately equal amounts of movement for increasing or for decreasing the tension in the strings. The translational movement apparatus may comprise a rocking arm and a parallel connected stabilizing rocking arm connected to a supporting member whereby pivoting the arms causes the supporting member to supply approximately the same amount of longitudinal movement for use by control rods. Tuners transfer the longitudinal movement from the translational movement means to the control rods. Each tuner comprises two stop members and a means between one of the stop members and the control rod for resisting relative movement therebetween to maintain the fine tuning of the tone produced when the tension is changed. A means for preventing relative rotational movement between a portion of the translational movement means and one of the stop members allows the tuner to be effectively used to adjust the fine tuning under conditions of tension change.
REFERENCES:
patent: 3136198 (1964-06-01), Smith et al.
patent: 3352188 (1967-11-01), Fender
patent: 3390600 (1968-07-01), Kelley
patent: 3688631 (1972-09-01), Jackson
patent: 3748943 (1973-07-01), Lashley
Franklin Lawrence R.
Ley John R.
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