Neck for stringed instruments

Claim 1

A STRINGED MUSICAL INSTRUMENT, SUCH AS A GUITAR, HAVING AN INSTRUMENT BODY, A REINFORCED NECK STRUCTURE HAVING ONE END THEREOF CONNECTED TO SAID INSTRUMENT BODY AND THE OTHER END THEREOF FORMED AS A MACHINE HEAD, SAID REINFORCED NECK STRUCTURE COMPRISING A NECK, A REINFORCING ROD, SAID ROD BEING SLIGHTLY BOWED AND DISPOSED IN A CHANNEL ARRANGED LONGITUDINALLY AND CENTRALLY OF SAID NECK, ANCHORING MEANS MOUNTED AT ONE END OF SAID ROD AND ARRANGED IN A RECESS IN SAID NECK AT SAID MACHINE HEAD END THEREOF TO BE HELD AGAINST LONGITUDINAL MOVEMENT WITH RESPECT TO SAID NECK, AND MEANS COMPRISING A TOOTHED WHEEL AND WORM GEAR SCREW MECHANISM SECURED IN SAID NECK AT SAID INSTRUMENT BODY END OF SAID NECK AND HELD AGAINST LONGITUDINAL MOVEMENT WITH RESPECT TO SAID NECK, SAID TOOTHED WHEEL BEING THREADEDLY MOUNTED ON THE OTHER END OF SAID ROD AND BEING ADAPTED UPON ROTATION OF SAID WORM GEAR SCREW TO ESTABLISH RELATIVE MOVEMENT BETWEEN SAID ROD AND SAID NECK IN AT LEAST ONE DIRECTION TO STRESS SAID ROD WHEREBY TO EXERT AN INFLUENCING FORCE ON SAID NECK TO RESTORE IT TO ITS DESIRED CONDITION, SAID WORM GEAR SCREW HAVING A DRIVE SHAFT ACCESSIBLE FROM EXTERNALLY OF SAID NECK BY WHICH SAID WORM GEAR SCREW CAN BE ROTATED.