[Bell Historians] Trebles on higher numbers

[Andrew Higson, Bellmaster]

charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

>From memory (risky), the bell is 25" diameter, the soundbow is approximatel=
y 6" thick and the clapper ball is 4" diameter. If I can subtract correctly=
, that means the clapper travels about 9" from one side of the bell to the =
other.

Andrew
----- Original Message -----=20
From: David Bryant=20
To: bellhistorians at yahoogroups.com=20
Sent: Wednesday, August 11, 2004 9:09 AM
Subject: Re: Re: [Bell Historians] Trebles on higher numbers


> I'm surprised that no one has reacted to this point yet. There is no=20
> *direct* connection between thickness and clapper throw. Two bells=20
> of the same pitch but different thickness will have different=20
> external profiles but the same internal profiles, because it is=20
> internal diameter which controls pitch. (Why else would tuning be=20
> done on the inside rather than the outside?) Therefore those two=20
> bells will have the *same* internal space available for clapper=20
> throw. (The thicker bell may well have a larger diameter at the lip,=20
> but it won't have a larger diameter at the sound bow--the point of=20
> impact of the clapper.)

The point with the Bullring treble is that it is so thick that it needs h=
itting hard to sound loud enough, but because it is so thick there is not m=
uch internal space, so the clapper travel is severely reduced. As I underst=
and it, even with a very heavy clapper for the size of the bell it has prov=
ed difficult to make it sound loud enough because of the restricted clapper=
movement.

David

--=20

Whatever you Wanadoo:
http://www.wanadoo.co.uk/time/

This email has been checked for most known viruses - find out more at: ht=
tp://www.wanadoo.co.uk/help/id/7098.htm

Yahoo! Groups Sponsor=20
ADVERTISEMENT
=20=20=20=20=20=20=20=20=20=20=20=20=20
=20=20=20=20=20=20=20
=20=20=20=20=20=20=20


---------------------------------------------------------------------------=
---
Yahoo! Groups Links

a.. To visit your group on the web, go to:
http://groups.yahoo.com/group/bellhistorians/
=20=20=20=20=20=20
b.. To unsubscribe from this group, send an email to:
bellhistorians-unsubscribe at yahoogroups.com
=20=20=20=20=20=20
c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service=
.=20


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ringingworld.co.uk/pipermail/bell-historians/attachments/20040811/c9585492/attachment.html>