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To: bellhistorians@yahoogroups.com<BR>From: mike@0e1jSSNK-TDFC8xY2FEcsZx3VjZ58ac0opIzYPZJWMHCHZn6ODiCFvn5IN4p3W_6Tpa2QgE6W6j-hQMhdXXbyHDwldfoDQ.yahoo.invalid<BR>Date: Wed, 1 Oct 2008 10:56:36 +0000<BR>Subject: [Bell Historians] Re: Bell diameters<BR><BR>
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--- In <A href="mailto:bellhistorians@yahoogroups.com">bellhistorians@<WBR>yahoogroups.<WBR>com</A>, "Bickerton, Roderic (SELEX <BR>GALILEO, UK)" <Roderic.Bickerton@<WBR>...> wrote:<BR>><BR>> <BR>> The latest Dove policy, regarding PNBR:<BR>> <BR>> <BR>> <BR>> "Our software has now been re-designed in such a way as to ignore,<BR>> automatically, changes in diameter of less than 1.5%"<BR>> <BR>> <BR>> <BR>> I submit this is appallingly crude, not acceptable.<BR>> <BR>> It represents about 3/4" of an inch on a 24cwt bell.<BR>> <BR>> It is about 3 times to lax, 0.5% is not exactly difficult to <BR>achieve,<BR>> <BR>> for a well made and undamaged bell.<BR>> <BR>> <BR>> <BR>> Why corrupt or refuse good data just to avoid having to comment <BR>bells<BR>> which due to poor casting or skirting produce excess variation <BR>depending<BR>> on where they are measured?<BR>> <BR>> <BR>> <BR>> Its seriously unjustifiable, in comparison to the tiny changes of <BR>weight<BR>> or pitch accepted, being equivalent to about 1cwt on a 24cwt bell.<BR>> <BR><BR>There were some very small differences being entered into the system <BR>that could, more than likely than not, be the result of inaccurate <BR>measuring in a confined space or, perhaps, a tape measure that was <BR>not as precise as it might be. John does change things that come <BR>from the bellhangers/<WBR>foundries. <BR><BR>Weight changes are very often from research into foundry records, <BR>when bells are rehung and re-weighed or from weight charts supplied <BR>from foundries and are therefore different from diamater changes. I <BR>know of only one occasion* when a bell has been weighed locally in a <BR>tower and there cannot be many more than this <BR><BR>(Clue - it is currently lying in its pit!)<BR><BR>Mike<BR><BR><BR></DIV><SPAN style="COLOR: white"></SPAN>
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