The Annual of Scientific Discovery, Or, Year-book of Facts in Science and ArtGould and Lincoln, 1860 |
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Zadetki 1–5 od 23
Stran 80
... Silica , from 39 to 50 parts . Quartz , from 30 to 50 parts . Flint , 66 10 to 20 66 Granite , 66 20 to 30 66 Kaolin , 66 10 to 20 66 Borax , 66 10 to 20 66 Pipe clay , 66 8 to 16 " Glass , 66 6 to 10 66 Chalk , 66 6 to 10 66 Magnesia ...
... Silica , from 39 to 50 parts . Quartz , from 30 to 50 parts . Flint , 66 10 to 20 66 Granite , 66 20 to 30 66 Kaolin , 66 10 to 20 66 Borax , 66 10 to 20 66 Pipe clay , 66 8 to 16 " Glass , 66 6 to 10 66 Chalk , 66 6 to 10 66 Magnesia ...
Stran 208
... silica , sulphur , magnesia , etc. , is effected by bringing the iron , when it is in a melted state , into contact with the alkaline earths , so that the impurities combine with them , and remain floating on the top of the melted metal ...
... silica , sulphur , magnesia , etc. , is effected by bringing the iron , when it is in a melted state , into contact with the alkaline earths , so that the impurities combine with them , and remain floating on the top of the melted metal ...
Stran 210
... silica , etc .; and that chemically pure steel was not the result to be aimed at , and he had found that even with one - fourth per cent . of sulphur the steel was of good quality . The great desideratum was to make steel at a very ...
... silica , etc .; and that chemically pure steel was not the result to be aimed at , and he had found that even with one - fourth per cent . of sulphur the steel was of good quality . The great desideratum was to make steel at a very ...
Stran 221
... silica ; and the invention consists in em- ploying as a flux in the blast - furnace , when smelting such ores , sandstone , sand , or , in fact , any other matter which contains silica in a comparatively pure form that is to say , where ...
... silica ; and the invention consists in em- ploying as a flux in the blast - furnace , when smelting such ores , sandstone , sand , or , in fact , any other matter which contains silica in a comparatively pure form that is to say , where ...
Stran 222
... silica , 4 cwt . This invention consists in adjusting the proportion of the silica and alumina in the charge by the addition of silica , where ores are employed which do not contain such a quantity of silica ( when combined with lime to ...
... silica , 4 cwt . This invention consists in adjusting the proportion of the silica and alumina in the charge by the addition of silica , where ores are employed which do not contain such a quantity of silica ( when combined with lime to ...
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action alloys alumina ammonia amount animal animalcules apparatus appear atmosphere axle body bones breccia carbonic acid cast iron cause cellulose cent centre chemical chloride coal color containing copper cylinder decomposition deposits depth diameter earth effect electric engine existence experiments fact feet fibres fluid formation fossil furnace fusel oil geological glacier greensand Hadrosaurus heat hundred hydrogen inches increased less light lime limestone liquid magnesia mass matter metal miles minute motion nature nearly nitric acid observed obtained octahedron odor ordinary organic oxide oxygen paper parchment passing peroxide phosphorescent phosphorus plants plate plough portion pounds present pressure produced Prof quantity reäction recently rocks side silica Silurian soda soil solution species specimens steam steel strata substance sulphate sulphuric acid surface temperature thick tion tons tube vegetable vessel weight wheel wire wood wrought iron zinc