Hanging Formulae etc.

[Andrew Aspland]

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Ages ago I gleaned a formula used to calculate the hang of a bell - i.e.
from the axis of rotation (gudgeon line) to the lip of bell.

Hang = dia/2 +18"

That the wheel should project 6" beyond that, giving:

Wheel = dia + 48

That the throw of the clapper should be 4" (i.e. distane of clapper piovot
below bell pivot).

I believe these had been used at the turn of the (19th/20th) century by
Taylors who of course had done so much to standardise their bell profiles.

Question: For a Taylor profile what is the relationship between the
height and the diameter?

Andrew
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