A treatise on the progressive improvement and present state of the manufacture of porcelain and glass [by G.R. Porter]

Longman, Reese, Orme, Brown, and Green, 1838 - 334 Seiten

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Seite 127 - Yet, by some such fortuitous liquefaction, was mankind taught to procure a body, at once, in a high degree, solid and transparent, — which might admit the light of the sun, and exclude the violence of the wind : — which might extend the sight of the philosopher to new ranges of existence ; and charm him, at one time, with the unbounded extent of the material...
Seite 126 - Who, when he saw the first sand or ashes, by a casual intenseness of heat, melted into a metalline form, rugged with excrescences, and clouded with impurities, would have imagined, that in this shapeless lump lay concealed so many conveniencies of life, as would in time constitute a great part of the happiness of the world...
Seite 15 - Dunstable, to seek a remedy for a disorder in his horse's eyes ; when the ostler at the inn, by burning a flint, reduced it to a fine powder, which he blew into them. The potter, observing the beautiful white colour of the flint after calcination, instantly conceived the use to which it might be applied in his art.
Seite 127 - ... of nature, and succour old age with subsidiary sight. Thus was the first artificer in glass employed, though without his own knowledge or expectation. He was facilitating and prolonging the enjoyment of light, enlarging the avenues of science, and conferring the highest and most lasting pleasures ; he was enabling the student to contemplate nature, and the beauty to behold herself.
Seite 16 - Its excellent workmanship, its solidity, the advantage which it possesses of sustaining the action of fire, its fine glaze impenetrable to acids, the beauty and convenience of its form, and the cheapness of its price, have given rise to a commerce so active and universal, that, in travelling from Paris to...
Seite 17 - Basaltes ; a white and a cane-coloured porcelain biscuit, both smooth and of a wax-like appearance ; and another white porcellaneous biscuit, distinguished as jasper, having in general all the properties of the basaltes, with a very important addition, the capability of receiving through its whole substance, from the admixture of metallic oxides, the same colours as those oxides communicate to glass or enamel in fusion. This peculiar property...
Seite 16 - Parts to Petersburg, from Amsterdam to the furthest part of Sweden, and from Dunkirk to the extremity of the south of France, one is served at every inn upon English ware. Spain, Portugal, and Italy are supplied with it ; and vessels are loaded with it for the East Indies, the West Indies, and the continent of America.
Seite 20 - The coasting vessels, which, after having been employed at the proper season in the Newfoundland fishery, carry these materials coastwise to Liverpool and Hull, to the amount of more than 20,000 tons yearly ; and at times when, without this employment, they would be laid up idle in harbour.
Seite 20 - Though the manufacturing part alone in the Potteries, and their immediate vicinity, gives bread to 15 or 20,000 people, yet this is but a small object when compared with the many others which depend on it...

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