. The Iron and steel magazine. tal section, on the line passing abovethe fire bridge, in Fig. 36, Plate XII, the bath being empty andshowing the tapping hole and the way in which the furnacenarrows at the fire bridge. Fig. 37, on the same plate, is also ahorizontal section, taken on a line passing through the openingsin the perforated hollow fire bridge, and clearly shows how thejets of air were directed so as to produce an intense ignition ofthe combustible gases, mingled with, and passing over with, thelarge volume of flame from the overcharged fire grate. The small scale on which this exper
. The Iron and steel magazine. tal section, on the line passing abovethe fire bridge, in Fig. 36, Plate XII, the bath being empty andshowing the tapping hole and the way in which the furnacenarrows at the fire bridge. Fig. 37, on the same plate, is also ahorizontal section, taken on a line passing through the openingsin the perforated hollow fire bridge, and clearly shows how thejets of air were directed so as to produce an intense ignition ofthe combustible gases, mingled with, and passing over with, thelarge volume of flame from the overcharged fire grate. The small scale on which this experimental furnace wasbuilt (a capacity of 3 cwt. only) was much against my obtainingthe high temperature necessary to melt a large proportion ofsteel in a pig-iron bath. I was, of course, fully aware that afurnace of sufficient capacity to cast a 5-ton or a lo-ton gunwould acquire a much higher temperature than was possible inmy small furnace. I knew, also, that forced draft obtained by 484 The Iron and Steel Magazine XII. ;;:). NKurii ai. SKdiuN ok Kl:i!X.\(K !.i; Makim, Mai,ij:ai;!.i-; 1kn ^=W
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectiron, bookyear1898
