Music – Instruments – Stringed
Patent
1988-04-04
1989-08-29
Franklin, Lawrence R.
Music
Instruments
Stringed
G10D 314
Patent
active
048606278
ABSTRACT:
A machine for tuning a guitar comprises a pair of facing posts extending at right angles to a wall of a base to be mounted on the guitar; the posts and wall being an integral casting of silicon bronze. A worm gear assembly is mounted in bores with a common axis in the posts. The worm gear assembly includes a worm gear shaft extending between the bores and a handle carrying shaft protruding beyond one of said posts. A gear wheel assembly secured to an extending through a bore in the wall has a gear wheel portion with a longitudinal axis at right angles to the worm gear shaft axis. The gear wheel portion engages the worm gear shaft axis so that turning of the handle and the worm gear results in turning of the gear sheet portion. The gear wheel assembly includes a guitar string tuning peg coaxial with the gear wheel assembly. Because a side of the wall is smooth, without bumps, the machine can be mounted in a wooden guitar head without making corresponding holes in the wood except for through holes for receiving the gear wheel assembly. A bore in one of the posts is threaded to receive the worm gear assembly. A metal washer is between the collar and the post having the threaded bore. A nylon washer is between a shoulder on the base wall and the tuning peg assembly side.
REFERENCES:
patent: 1083736 (1914-06-01), Glaesel
patent: 2615360 (1952-10-01), Hawy
patent: 3982462 (1976-09-01), Schaller
patent: 4098163 (1978-07-01), Kato
patent: 4515059 (1985-05-01), Siminoff
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