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US 4,080,865 AGranted
Pitch varying apparatus
OwnerEdward B. Gfellinventor
Life of this patent
Estimating the term…
Abstract
Apparatus for varying the pitch of at least one of the strings of a stringed instrument, comprising a rotatable shaft means, to which one or more of the strings of the stringed instrument may be connected, and a lever arm attached to the rotatable shaft means for providing rotation of the shaft.
Claims4
In a keyboard instrument of the type having a keybed frame, a tuning machine attached to said frame, a first set of pins attached to said frame, and a first set of strings connected between said first set of pins and said tuning machine, the improvement in combination therewith comprising:
- a. a shaft rotatably secured to said keybed frame, said shaft carrying a second set of pins;
- b. a second set of strings connected between said tuning machine and said second set of pins;
- c. a lever arm attached to one end of said shaft;
- and,
- d. means for actuating said lever arm;
- whereby said lever arm may be actuated and said shaft may be rotated for varying the tension and pitch of said second set of strings as desired.
3 more elements
Dependencies are inferred from the claim text.