In message <[log in to unmask]>,
Peter Claughton <[log in to unmask]> writes
>It is not the weight that is important but the thermal shock of
>receiving the molten lead. I've had a look at the photo of the item for
>sale on e-bay and I do not believe it is a sumpter pot. What it might
>be is one of the crystallisation pots used in the Pattison Process.
>
I don't know anything about Sumpter pots but I do work with melting pots
around this size. I've had a quick look at the photo and it looks to me
like a domestic / agricultural boiler, from what I can see from the
photo I would say the wall thickness is totally inadequate for a melting
/ crystallisation pot, it would need to be at least 20 to 25mm thick to
have any sort of meaningful life expectancy.
--
Geoff Treseder
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