The correct reference is Transactions of Newcomen Society 31 (1957-9),
49-95. There are further articles on the Darby business in the same volume,
271-88, and vol. 32 (1959-60), 43-56, but they deal with other issues
Peter King
-----Original Message-----
From: Arch-Metals Group [mailto:[log in to unmask]]On Behalf Of
Peter Hutchison
Sent: 29 April 2005 02:47
To: Peter King
Subject: Re: Sand casting developed by Abraham Darby
Edgar
Abraham Darby I first used the well established green sand moulding
technique for brass castings. His European experts failed to make moulds to
cast iron. Darby and his assistant, whos name I cannot remember, later found
suitable sand for the purpose. All this was not really development.
According to R.A. Mott the method of casting bellied pots using a three part
mould in a special moulding box (one of which still exists) also allowed the
production of thinner pots. The pattern was in two parts and made of brass.
The hot high phosphorus iron from the coke furnace must have been needed to
reliably fill the thin sections. The detail is too long to be included in an
e-mail but see
"Abraham Darby (I and II) and the Coal-Iron Industry"
which was probably in the Transactions of the Institute of Civil Engineers
about 1958. Page 49. I don't have a more precise reference on my photocopy.
I cannot attach it.
Mott calls the method dry sand but it is clearly a green sand process.
Peter Hutchison
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