Music – Instruments – Stringed
Patent
1978-09-18
1981-02-24
Franklin, Lawrence R.
Music
Instruments
Stringed
G10D 304
Patent
active
042520460
ABSTRACT:
The invention is a pressure bar for a capo tasto which attaches itself to a stem of a stringed instrument, having a fret board and strings adjacent to the fret board, and which depresses the strings against the fret board in order to change the key of the stringed instrument. The capo tasto includes a pressure bar having a length adapted to extend across the fret board of the stringed instrument, a mounting member for mounting the pressure bar on the stem of the stringed instrument so that it is disposed perpendicular to the longitudinal axis of the stem adjacent to the fret board and a pressure applicating device for applying pressure to the surface of the stem oppositely disposed to the surface on which the fret board is placed so that the pressure is transmitted through the mounting member to the pressure bar. The pressure bar is a multi-surface member which is formed from a pliable material so that it will not damage the strings of the stringed instrument and which is mechanically coupled to the mounting member so that it may rotate about its longitudinal axis in order to allow its various surfaces to contact the strings and the fret board of the stringed instrument. One type of pressure bar has three flat orthogonal surfaces and one concave surface and the second type of pressure bar has four flat surfaces and two concave surfaces, which differ in degrees of concavity.
REFERENCES:
patent: 3933077 (1976-01-01), Dunlop
patent: 4128034 (1978-12-01), Myerson et al.
Gillis Richard W.
Myerson Elliot L.
Franklin Lawrence R.
Johansen W. Edward
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