Other inventors claimed a part in the invention of the Bessemer process of making steel. Here, the contemporary discussion in the technical press is re-examined to throw light on the relations of these various claimants to the iron and steel industry of their time, as having a possible connection with the antagonism shown by the ironmasters toward Bessemer's ideas.
owledge of the metallurgy of war," he attacked with impetuosity. Within three weeks of his experiments in France, he had applied for a patent for "Improvements in the Manufacture of Iron and Steel." This covered the fusion of steel with pig or cast iron and, though this must be regarded as only the first practical step toward the Bessemer process, it was his experiments with the furnace which provided Bessemer with the idea for his later developments.
 British patent 2489, November 24, 1854.
 Bessemer, op. cit. (footnote 7), p. 137 He received British patent 66, dated January 10, 1855.
 See James W. Dredge, "Henry Bessemer 1813-1898," Transactions of the American Society of Mechanical Engineers, 1898, vol. 19, p. 911.
These were described in his patent dated October 17, 1855 (British patent 2321). This patent is significant to the present study because his application for an American patent, based on similar specifications, led to the interfere
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