[Bell Historians] Bolting bells to headstocks

[Richard Offen]

--- In bellhistorians at yahoogroups.com, "Susan & Christopher Dalton" 
<dalton.family at v...> wrote:
> 
> > Matthew Higby:
> > 
> >> I was amazed that a small G&J bell that we rehung recently,
> >> changed in pitch when the bell was bolted to its stock (with
> >> fibre pad between). The prime rose around 10Hertz!
> >
> [Anybody interested in what happens to partial tones (and their 
decay times)
> when bells have large resin pads cast onto their crowns might care 
to visit
> Morden, Dorset. The tierce is the only partial to resonate for 
more than a
> second or so. This isn't so bad when ringing, but doesn't do much 
for clock
> or other chimes. CD]

What make you think it's the resin pad causing this?

R