Image: Fitzroy Iron Works (Puddling Furnace) c.1868 ( Illustrated Sydney News Thu 18 Feb 1869 Page 4)

Description: This description is a quote from https://trove.nla.gov.au/newspaper/article/63514409 "This engraving represents the furnace in which the first process for the convertion of cast into wrought iron takes place, and is technically termed puddling, the molten metal being stirred about , or puddled, by which means the particles are brought into contact with the air, this being the agent by which the requisite chemical changes are brought about. The fusion of the cast iron is effected by the flame passing over it, the fuel being thrown into a separate chamber. The stirring or puddling is accompanied by a frizzling sound, and after a certain time the iron arrives at a pasty condition, and is said to have " come to nature. " It is then rolled into balls, one of which is represented in the engraving as being lifted out of the furnace. The puddled balls are successively taken to the tilt hammer, by which the cinder or impurity is squeezed out, and hammered to a convenient shape for passing through the rolls, which draw them out into long flat bars called puddled bars"
Title: Fitzroy Iron Works (Puddling Furnace) c.1868 ( Illustrated Sydney News Thu 18 Feb 1869 Page 4)
Credit: https://trove.nla.gov.au/newspaper/article/63514409 Illustrated Sydney News Thu 18 Feb 1869 Page 4 https://trove.nla.gov.au/general/using-digitised-newspapers-faq/#using_reuse "Can I copy the images and use them in Wikipedia, and how should I cite/credit them? For further information about copyright, view the Australian Copyright Council website. This information applies to articles published prior to 1954 only. Use of articles published after 1954 may be subject to copyright restrictions. It is OK to use images from Digitised newspapers and more... on Wikipedia, other websites and in publications. The National Library (NLA) does not own copyright on the images or the original newspapers, and has digitised newspapers prior to 1954 on the understanding that they are out of copyright. Credit your source of the images as the National Library of Australia and use the stable article identifier (e.g. http://nla.gov.au/nla.news-article57282857) as your link. The article identifier is located by clicking on the 'cite' button at the top of the left hand column, under the heading 'article identifier'. The URL should not be used as this is not stable."
Author: Unknown Artist, Engraving published in Illustrated Sydney News Thu 18 Feb 1869, Page 4.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No