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Caption: Plan and elevation of a blast furnace, showing the blowing engine, water blast regulator, and the tuyeres supplying the blast to the furnace. The introduction of coke in place of charcoal made the need for greater draughts imperative, and it was only the application of Watt's steam engine that finally ousted charcoal. Dated 19th century
Credit: Album / Universal Images Group / Universal History Archive
Image size: 5100 × 3051 px | 44.5 MB
Print size: 43.2 × 25.8 cm | 2007.9 × 1201.2 in (300 dpi)