Portable keyboard

Details Portable keyboard Portable keyboard

1975-09-02

1976-09-21

Tomsky, Stephen J.

Music

Instruments

General features

84404, 84435, G10C 312

Patent

active

039812219

ABSTRACT:
The assembly consists of a piano type musical keyboard which includes a plurality of elongated individual pivotally mounted key bars having a key or a representative thereof positioned on one end of each of the key bars and means associated with the opposite end of each of the bars for operating a pivotally supported hammer adapted to strike a sound producing element of a tone indicated by the keys positioned on the keyboard, the key bars being of two lengths, the key bars representing the white keys being longer than the key bars representing the black keys, the pivot means about which the key bars carrying the white key are pivoted being positioned at a greater distance from the opposite end of the key bars than the pivot means for the key bars carrying the black keys.

REFERENCES:
patent: 1775330 (1930-09-01), Stoehr
patent: 2159491 (1939-05-01), Rose
patent: 2565239 (1951-08-01), Kostka
patent: 2837004 (1958-06-01), Volpe
patent: 3028780 (1962-04-01), Merchant
patent: 3146658 (1964-09-01), Mandy et al.
patent: 3479918 (1969-11-01), Genin

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