Perfection and Patent of Vulcanization in Springfield, Mass.
Several years earlier, Goodyear had, however, started a small factory at Springfield, Massachusetts, to which he moved his primary operations in 1842. The factory was run largely by Nelson and Henry Goodyear, Charles' brothers. Charles Goodyear's brother-in-law, Mr. De Forest, who was a wealthy woolen manufacturer, took Ryder's place. The work of making the invention practical was continued. In 1844, in Springfield, the process was sufficiently perfected that Goodyear felt it safe to take out a patent. The first vulcanization of rubber is considered one of the major "firsts" that contributes to the City of Springfield's nickname, "The City of Firsts." In 1844, Goodyear's brother Henry introduced mechanical mixing of the mixture in place of the use of solvents.
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