Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1980-04-22
1981-11-17
Pitts, Harold I.
Communications: electrical
Audible indication
Percussion-type sound producer
340390, 340399, 340402, G10K 1065
Patent
active
043014488
ABSTRACT:
A gong striking mechanism is provided, which comprises a driving electric motor mounted on a frame within a gong, and conversion means rotationally connected directly or indirectly to the motor shaft for converting continuous rotational motion of the motor shaft to reciprocal gong striking motion. In a preferred embodiment of the invention the conversion means comprises an eccentric cylinder fixed to the motor shaft, and a hammer made of hollow cylinder in spaced internal arrangement with the eccentric cylinder to absorb impact strength and improve sound volume.
REFERENCES:
patent: 1692518 (1928-11-01), Sotak
patent: 2840176 (1958-06-01), Davis
patent: 3076960 (1963-02-01), Knutson
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