Motor actuated bell

Details Motor actuated bell Motor actuated bell

1980-07-10

1983-04-19

Caldwell, Sr., John W.

Communications: electrical

Audible indication

Percussion-type sound producer

340399, 340402, G08B 310, G10K 1064

Patent

active

043807585

ABSTRACT:
A motor actuated bell comprises a crank member operatively connected to a motor drive shaft. An elongated connecting plate is connected at one end thereof to the crank member for being reciprocally moved along its axis. A pivotal lever is connected at one end thereof generally perpendicularly to the other end of said connecting plate for being subjected to swinging movement. A hammer means has a resilient means resiliently supporting a hammer element on the lever.

REFERENCES:
patent: 195391 (1877-09-01), Perry
patent: 2474405 (1949-06-01), Ritti
patent: 3435450 (1969-03-01), Pena
patent: 4183018 (1980-01-01), Sakaguchi
patent: 4286259 (1981-08-01), Ishii

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