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Updated: May 6, 2025
It was not till the year 1844, more than ten years after he began to experiment, and more than five years after discovering the secret of vulcanization, that he was able to conduct his process with absolute certainty, and to produce vulcanized India-rubber with the requisite expedition and economy. We can form some conception of the difficulties overcome by the fact, that the advances of Mr.
The vulcanization of thin articles from one twenty-fifth to one-sixteenth inch thick, is done by Parkes' patented process, that is, dipping it in carbon disulphide for a short time, to which chloride or bromide of sulphur has been added, and when the solvent has evaporated the sulphur remains behind.
It was in the year 1839, by an accident, that he discovered the true process of vulcanization which cured not the surface alone but the whole mass. He was trying to harden the gum by boiling it with sulphur on his wife's cookstove when he let fall a lump of it on the red hot iron top. It vulcanized instantly. This was an accident which only Goodyear could have interpreted. And it was the last.
He tried every known textile fabric, and every conceivable process before arriving at the simple expedient of mixing fibre with the gum, by which, at length, the perfect India-rubber cloth was produced. This invention he considered only second in value to the discovery of vulcanization.
After the pieces have received the form they are to have they are heated with steam or hot air to 275 deg.. Flat articles are vulcanized between press plates heated by steam. This vulcanization is said to have been discovered accidentally by searching different colored stuffs, some of which were dyed yellow with sulphur; the latter stood well.
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