Vibrato tuning device for stringed musical instruments

Claim 1

A STRINGED MUSICAL INSTRUMENT OF THE CLASS DESCRIBED INCLUDING A BODY, A PLURALITY OF STRINGS, TUNING MEANS TO WHICH SAID STRINGS ARE CONNECTED AT ONE END, A TAILPIECE TO WHICH SAID STRINGS ARE CONNECTED AT THEIR OTHER ENDS AND COMPRISING A BODY MEMBER HAVING A PLURALITY OF LATERALLY SPACED ANNULAR STRING RESTS OF VARYING RADIAL DIAMETERS SPACED THEREALONG AND HAVING A LONGITUDINAL BORE THEREIN, SUPPORTING MEANS FOR SAID TAILPIECE COMPRISING A TORSIONALLY TWISTABLE BAR NONROTATABLY MOUNTED AT ONE END AND ROTATABLY MOUNTED AT ITS OTHER END ON SAID INSTRUMENT BODY AND DISPOSED THROUGH SAID LONGITUDINAL BORE IN SAID MEMBER, SAID BODY MEMBER BEING CONNECTED AT ONE END TO SAID BAR, AND MANUALLY OPERABLE MEANS OPERATIVELY CONNECTED TO ONE END OF SAID MEMBER AND SAID BAR FOR ROTATABLY ADJUSTING SAID MEMBER THEREBY VARIABLY VARYING THE DEGREES OF TENSION ON SAID STRINGS TO VARY THE TONES THEREOF WHEREBY AT LEAST THE HIGHEST TREBLE STRING AND THE NEXT THREE LOWER PITCHED STRINGS WILL ALWAYS BE IN TUNE.