Elements of Glass and Glass MakingGlass and pottery Publishing Company, 1899 - 174 Seiten |
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Seite 2
... action of the elements any great length of time it assumes a variegated hue termed irides- cence ; this latter peculiarity is now given commercial import- ance , and is frequently produced artificially . Innumerable other peculiarities ...
... action of the elements any great length of time it assumes a variegated hue termed irides- cence ; this latter peculiarity is now given commercial import- ance , and is frequently produced artificially . Innumerable other peculiarities ...
Seite 8
... action does ensue , yet of itself it effects no direct combination or molecular change of sub- stance . Prior to any molecular change , the molecules of a given sub- stance must become disintegrated and decomposed , and their atoms be ...
... action does ensue , yet of itself it effects no direct combination or molecular change of sub- stance . Prior to any molecular change , the molecules of a given sub- stance must become disintegrated and decomposed , and their atoms be ...
Seite 9
... action of the various silicates will be given later , ( see Raw Materials ) it may be well to remark here a quality belonging to a mixture of silicates ; which is the fact that the fus- ing point of a mixture is considerably lower than ...
... action of the various silicates will be given later , ( see Raw Materials ) it may be well to remark here a quality belonging to a mixture of silicates ; which is the fact that the fus- ing point of a mixture is considerably lower than ...
Seite 15
... action of water and alkalies , and , with a single exception the action of all acids ; preserving all its beau- ty , retaining its surface , and not losing the smallest portion of its substance by the most frequent use ; but under ...
... action of water and alkalies , and , with a single exception the action of all acids ; preserving all its beau- ty , retaining its surface , and not losing the smallest portion of its substance by the most frequent use ; but under ...
Seite 16
... action of the liquids . Most acids in a dilute state , except sulphuric , attack glass less than water ; but the solvent action of solutions of salts whose acids form insoluble calcium salts , as sulphates , phosphates , car- bonates ...
... action of the liquids . Most acids in a dilute state , except sulphuric , attack glass less than water ; but the solvent action of solutions of salts whose acids form insoluble calcium salts , as sulphates , phosphates , car- bonates ...
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Elements of Glass and Glass Making: A Treatise Designed for the Practical ... Benjamin Franklin Biser Keine Leseprobe verfügbar - 2009 |
Elements of Glass and Glass Making: A Treatise Designed for the Practical ... Benjamin Franklin Biser Keine Leseprobe verfügbar - 2014 |
Häufige Begriffe und Wortgruppen
100 Charcoal action alkali alumina annealing Antimony Arsenic Sand Benrath blue Borax bottle glass Carbonate of calcium carbonic acid cent Charcoal chemical chloride clay coal cobalt coke colored glass combustion composition compound constituents containing cool cryolite crystal Cullet decolorizers decomposed devitrification effects excess flame Flint batch Flint flint glass fuel furnace fusible fusion gases Glass Recipes glassmaking gold green imparts impurities increased lbs Arsenic lbs Manganese Manganese manufacture melt metallic mixed mixture molecules nickel Nitrate of sodium Nitre Oxide of copper Oxide of iron oxygen Pearl ash Phosphate of calcium Plate Glass potassium powder produced proportion Purple of cassius quantity red heat Red lead result Saltpetre Sand Lead Potash Sand Potash Sand Salt cake Sand Soda silica Slacked lime Soda ash Soda Lime sodium carbonate sodium sulphate solution substance Sulphate of sodium temperature tint tion violet window glass yellow Zaffre ΙΟ ΙΟΟ
Beliebte Passagen
Seite 1 - 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 creation, and at another with the endless subordination of animal life ; and, what is yet of more importance, might supply the decays of nature, and succour...
Seite 1 - 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 conveniences of life, as would in time constitute a great part of the happiness of the world...
Seite 22 - It is, however, from among the ruins of ancient buildings that glass is found in all the stages of disintegration , and there is, perhaps, no material body that ceases to exist with so much grace and beauty, when it surrenders itself to time and not to disease.
Seite 2 - ... endless subordination of animal life ; and, what is yet of more importance, might supply the decays 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 41 - ... easily made by exposing a known quantity of marble for about half an hour to a full white heat, by which means the carbonic acid gas is entirely expelled, so that by the loss in weight the quantity of each ingredient, supposing the marble to have been pure, is at once determined. In order to ascertain that the whole loss is owing to the escape of carbonic acid, the quantity of this gas may be determined by a comparative analysis.
Seite 61 - draft" or movement of the air because of the difference in weight between the column of hot gases in the chimney and the cold outside air.
Seite 41 - ... being inclined to one side in order to prevent the fluid from being flung out of the, vessel during the effervescence. The diminution in weight experienced by the flask and its contents, indicates the quantity of carbonic acid which has been expelled. Should the carbonate suffer a greater loss in the fire than when decomposed by an acid, it will most probably be found to contain water. This may be ascertained by heating a piece of it to redness, in a glass tube, the sides of which will be bedewed...
Seite 41 - Into a small flask containing muriatic acid diluted with two or three parts of water, a known quantity of marble is gradually added, the flask being inclined to one side in order to prevent the fluid from being flung out of the vessel during the effervescence. The diminution in weight experienced by the flask and its contents, indicates the quantity of carbonic acid which has been expelled. Should the carbonate suffer a greater loss in the fire than when decomposed by an acid, it will most probably...
Seite 7 - ... from the almost total eclipse it ad experienced and to this century most of the improved methods which have placed it once again among the .arts must be assigned. DEFINITION OF GLASS. According to Bizer4 "Glass is a transparent solid formed by the fusion of siliceous and alkaline matter, which assumed while passing through said state of fusion at a temperature sufficiently high, a fluid condition, and, as the temperature falls, passing from the fluid through a ductile viscous state to a solid,—...
Seite 65 - The thermal capacity of a gas, as of any substance, is the amount of heat necessary to raise the temperature of a unit mass of it one degree.