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The magnetic field of the electromagnet collapses, and the clapper springs away from the bell. This closes the contacts again, allowing the current to flow to the electromagnet again, so the magnet pulls the clapper over to strike the bell again. This cycle repeats rapidly, many times per second, resulting in a continuous ringing.
Within the bell is a clapper which consists of a solid shaft, (wood, iron or steel) a clapper ball (wrought iron or steel) and a flight. The size of the flight determines the rate at which the clapper swings, and therefore the point in time at which it strikes the bell. Bells are normally left mouth down (for safety).
The Clapper is a sound-activated electrical switch, [1] sold since 1984 by San Francisco, California based Joseph Enterprises, Inc. Joseph Pedott marketed the clapper with the slogan "Clap On! Clap Off! The Clapper!". [2] The Clapper plugs into a U.S.-type electrical outlet, and allows control of up to two devices plugged into the Clapper. [3]
The product: The Clapper The price: $24.95 plus $6.95 shipping and handling for a total of $31.98. The claims: It turns up to two plug-in lights or equipment on and off with claps. The Buy-o-meter ...
The clapper is a rigid steel or wrought iron bar with a large ball to strike the bell. The thickest part of the mouth of bell is called the soundbow and it is against this that the ball strikes. Beyond the ball is a flight, which controls the speed of the clapper. In very small bells this can be nearly as long as the rest of the clapper.
The clapper is a rigid steel or wrought iron bar with a large ball to strike the bell. The thickest part of the mouth of bell is called the soundbow and it is against this that the ball strikes. Beyond the ball is a flight, which controls the speed of the clapper. In very small bells this can be nearly as long as the rest of the clapper.
A man clapping Clapping hand. A clap is the percussive sound made by striking together two flat surfaces, as in the body parts of humans or animals. Humans clap with the palms of their hands, often quickly and repeatedly to express appreciation or approval (see applause), but also in rhythm as a form of body percussion to match the sounds in music, dance, chants, hand games, and clapping games.
[11] A heavy clapper brings out lower partials (clappers often being about 3% of a bell's mass), while a higher clapper velocity strengthens higher partials (0.4 m/s being moderate). The relative depth of the "bowl" or "cup" part of the bell also determines the number and strength of the partials in order to achieve a desired timbre.