Electrically operated bell
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United States of America Patent
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Aug 25, 1981
Grant Date -
N/A
app pub date -
Jul 17, 1980
filing date -
Jul 17, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrically operated bell comprises an electric drive means and a pivotal lever supporting a hammer means. The lever is operatively connected to the drive means for intermittently moving the hammer means into striking contact with a gong. The lever has a pivot adjusting means by which the fulcrum of the pivotal lever can be varied.
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