Bell Ringing Components: Difference between revisions
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== Mechanical Components == | == Mechanical Components == | ||
=== Bell === | === Bell === | ||
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==== Swinging Bell ==== | ==== Swinging Bell ==== | ||
[[File:Bell-swinging-annotated.png|frameless|right|300px|Swinging Bell Components]] | |||
A swinging bell (A) is shown in the diagram with a wheel and electric hammer. | |||
===== A-Stand and Headstock ===== | |||
A swinging bell is typically gimbal mounted to a headstock to allow free swinging. In the illustration the headstock (F) has welded on axles inserted to a pillow block style ball-bearing (H) that is attached to the top of the A-stand (B) which is designed to support the weight and swinging forces of the bell and transfer them to the tower structure (not shown). | |||
===== Headpiece and Clapper ===== | |||
The bell is suspended from the Headstock with a headpiece (G) that distributes the weight of the bell evenly between the suspension bolts (E). The headstock for a swinging bell has a pivot from which the free swinging clapper (C) is mounted. | |||
===== Wheel ===== | |||
Traditionally, pulling a rope attached to the wheel (D) rings a swinging bell. The wheel is attached to the headstock (F). Ropes will only allow the bell to be pulled in one direction. Chain or belt driven motors with position feedback can be used to pull in both directions. | |||
A swinging bell is | For a cleaner visual aesthetic and quieter mechanical performance, modern [http://www.chimemaster.com/swinging-motors/ MagForce] induction motors do away entirely with the need for a wheel. Only an aluminum plate is mounted to the headstock. The motor, attached to the A-stand induces currents into the plate without physical contact. | ||
===== Tolling Hammer ===== | |||
The lively sound of one or more bells swinging evoke a celebratory atmosphere. This is used for calling people to church or celebrating special events. When announcing times of prayer or mourning, a toll of the bell while it is stationary is more appropriate. | |||
The diagram shows such a hammer (I) actuated by an electromagnet (J) that allows an [http://www.chimemaster.com/libertas electric bell control system] to sound the hour, announce prayer times or count the age of the person being memorialized. | |||
==== Stationary Bell ==== | ==== Stationary Bell ==== | ||
=== Striker === | === Striker === | ||
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For stationary bells, the clapper is typically supported close to one ideal strike point and an externally applied force moves the head toward the bell for a single strike. | For stationary bells, the clapper is typically supported close to one ideal strike point and an externally applied force moves the head toward the bell for a single strike. | ||
== Electrical Components == | == Electrical Components == | ||