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With their yellow wings of vulcanized cloth, and their slender bodies, like long tails, they resembled so many dragon-flies, or "devil's darning needles," assembled in conclave upon the level floor. At the farther end of the shed was a small blast furnace, shooting upward a livid, blue spout of flame, which roared savagely.
He took from his pocket a leather case, such as a woodsman might use to carry a large pocket compass, and removing the cover set out upon the table an instrument that was entirely enclosed in vulcanized rubber. On the top, under glass, was a dial, with a little needle which vibrated violently, but came to a standstill soon after being placed on the table.
The bag itself consisted of two layers of Japan silk between which was a layer of rubber, all being sewed together and then vulcanized. But the balloon trunk was not opened at once. The pipe to convey the gas from the cooler and purifying tank had been brought in four-foot lengths of light wood, cemented and shellacked.
If the child uses a bottle it should be kept absolutely clean. It is best to have two or three bottles, so that one will always be perfectly clean and fresh. The nipple should be of black or pure rubber, and not of the white or vulcanized rubber; it should fit over the top of the bottle. No tubes should ever be used; it is impossible to keep them clean.
It lasts but two days, but it steals to-morrow's bread, the week's soup, the wife's dress, the child's wretched rags. Men, born doubtless to be beautiful for all creatures have a relative beauty are enrolled from their childhood beneath the yoke of force, beneath the rule of the hammer, the chisel, the loom, and have been promptly vulcanized.
The court found for the plaintiff, and this decision established for all time the claim of the American, Charles Goodyear, to be the sole inventor of vulcanized rubber. This trial may be said to be the dramatic climax in the story of rubber.
The prize for which he had labored so long and so heroically was secured at last, and in 1844, ten years after the commencement of his experiments, he was able to produce perfectly vulcanized India-rubber with expedition and economy, and, above all, with certainty.
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.
I think it is because their materials did not allow them to come to the manly assertion that somebody else did make this invention, giving to that somebody a local habitation and a name. We want to know the name, and the habitation, and the location of the man upon the face of this globe, who invented vulcanized rubber, if it be not he, who now sits before us.
Occasionally, it is true, he produced a small piece of perfectly vulcanized India-rubber; but upon subjecting other pieces to precisely the same process, they would blister or char. Then we see him resorting to the shops and factories in the neighborhood of Woburn, asking the privilege of using an oven after working hours, or of hanging a piece of India-rubber in the "man-hole" of the boiler.
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