[Bell Historians] Re: Diameters (was Dogmersfield)

[Richard Offen]

Not necessarily true.   Certainly the old pan balance at Whitechapel (not
sure if it is still in use), which I think dated from the time of Thomas
Mears, was so beautifully engineered that it happily registered differences
of a few ounces.   

 

As with every other measuring device, these scales were only ever as
accurate as the person operating them.

 

R

 

   _____  

From: bellhistorians at yahoogroups.com [mailto:bellhistorians at yahoogroups.com]
On Behalf Of Alan Buswell
Sent: Friday, 8 August 2008 12:59 AM
To: bellhistorians at yahoogroups.com
Subject: Re: [Bell Historians] Re: Diameters (was Dogmersfield)

 

Surly this also applies to bell weights. Scales being able to weigh 20cwt+
nodoubt are unable to measure ounces.

So a bell could be +/- 16 ounces.

AAJB

----- Original Message ----- 

From: HYPERLINK "mailto:c.j.pickford.t21 at gQeLEmiiLxqzn7JJfp6hsana-JTu4iW-cz58G0Fh1DfrCsj4ZsCsn-mqvCJns-gr-X6Z4kG-PA2CGNb8dAolqO937Q_a_KA.yahoo.invalid"Chris Pickford 

To: HYPERLINK
"mailto:bellhistorians at yahoogroups.com"bellhistorians at -yahoogroups.-com 

Sent: Thursday, August 07, 2008 2:42 PM

Subject: [Bell Historians] Re: Diameters (was Dogmersfield)

 

We've been here before, I think, but no two people - bellfounders or what
the Victorians used to term "Bell hunters" - will measure diameters exactly
the same. Even people who are careful and measuring in idea circumstances
may vary by up to 1/8" and sometimes more. 

 

While some bells are elliptical, that's not really a major reason for
variations in quoted diameters. It's much more about human error, access,
degree of care and (let's not forget it) the accuracy of measuring equipment
- minor damage to the end of a steel tape can easily lead to an error of
1/16" or more.

 

Anyway, all I'm really saying is that while accurate measurement is clearly
desirable, there's a practical limit - and it's not worth getting het up
about differences of 1/8" or 1/16" 

 

CP

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