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In English-style ringing the bell is rung up such that the clapper is resting on the lower edge of the bell when the bell is on the stay. During each swing, the clapper travels faster than the bell, eventually striking the soundbow and making the bell sound. The bell speaks roughly when horizontal as it rises, thus projecting the sound outwards ...
Bump the stay - allow the bell to swing over the balance, out of control, so the stay pushes the slider to its limit, stopping the bell. Canons - loops cast onto older bells' crowns. Clapper - the metal (usually cast iron) rod/hammer hung from a pivot below the crown of the bell, that strikes the soundbow of the bell when the bell stops moving.
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).
[10] 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.
Ellacombe apparatus for six bells. The Ellacombe apparatus is a mechanism devised for performing change ringing on church bells by striking stationary bells with hammers. It does not produce the same sound as full circle ringing due to the absence of Doppler effect as the bells do not rotate, and the lack of a damping effect from the clapper after each strike.
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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.
In the push to fully privatize the system and phase out state-run facilities, Florida has continued both to renew YSI’s contracts and to award the company new ones. Last year, Florida opted not to extend YSI’s contract to oversee Thompson Academy, the facility where Jerry Blanton had blown the whistle and lost his job eight years earlier.