Reply-To: | | [log in to unmask][log in to unmask], 07 Mar 2000 09:03:00 -0500642_us-ascii Peter Hutchison wrote:
> The cupola type blast furnaces described by Percy were a > new design which must have been based on older successful foundry cupola > furnaces of a much smaller size. They were often larger than the existing > stone > built furnaces.
I have an 1831 pamphlet from the "Library of Useful Knowledge" published by Baldwin and Cradock in London entitled "On the Manufacture of Iron". On page 3 it has a picture of a "more simple form of constructing furnaces, which has been resorted to in Wales, and which is called a cupola. It is [...]37_07Mar200009:03:[log in to unmask]
9960 44 31_Re: sulphide inclusions in iron19_James H Brothers [log in to unmask], 07 Mar 2000 09:10:16 -0500642_us-ascii Roger Doonan wrote:
> I agree with Thilo that the sulphur is most likely from the coal but why not > the iron too! > Iron pyrite inclusions are not that uncommon in some coals and if they were > heated in a reducing atmosphere then prills of iron sulphide would result. > > cheers > > roger > > ********************** > Dr R.C.P. Doonan > Archaeology Group > University of Bournemouth > Bournemouth > Dorset BH12 5BB > UK > t 01202 595452 > e [log in to unmask] > f 01202 595255 > ********************** [...]37_07Mar200009:10:[log in to unmask] |