The Repertory of Patent Inventions, and Other Discoveries and Improvements in Arts, Manufactures, and Agriculture: Being a Continuation, on an Enlarged Plan, of the Repertory of Arts and Manufactures ...

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T. and G. Underwood, 1810
 

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Página 73 - Now Know Ye, that in compliance with the said proviso, I, the said Adolphe Nicole, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed, are particularly described and ascertained in and by the following statement thereof, reference being had to the Drawing hereunto annexed, and to the figures and letters marked thereon...
Página 1 - Sylvester do hereby describe and ascertain the nature of our said invention, and the manner in which the same is to be performed...
Página 128 - At a meeting of the vicar, church wardens, and vestrymen of the parish of St. Martin in the Fields, in the county. of Middlesex...
Página 174 - ... of FAHRENHEIT. This temperature is continued during the whole process ; and as the evaporation proceeds, small flakey crystals continue to form themselves, and to fall to the bottom of the boiler. At the end of from eight to twelve hours, the greatest part of the water of solution is found to be evaporated ; so much only being left, as barely to cover the salt and the bottom of the pan. The salt is then removed into conical wicker...
Página 4 - To all to whom these presents shall come, &c.: — Now know ye, that in compliance with the said proviso. I, the said John Henry Cassell, do hereby declare that the nature of my invention, and the manner in which the same...
Página 321 - Now know ye, that in compliance with the said proviso, I, the said John Watson, do hereby declare that the nature of my said Invention, and the manner in which the same...
Página 127 - WILLIAM CHAPMAN, of the town and county of Newcastle-upon-Tyne, Civil Engineer; for...
Página 224 - ... evaporation. In foreign bay salt, its quantity is very insignificant. From the table it may be seen, that the proportion of sulphate of lime is greater in foreign bay salt, than in any variety of British salt, even than in those which are prepared from sea water with a boiling heat. The only explanation of this fact, that occurs to me, is, that during the rapid evaporation of sea water, a considerable part of the calcareous sulphate is precipitated at an early stage of the process, and is partly...
Página 293 - There is only, therefore, an excess of 0.8 grain of the actual above the estimated quantity, a difference much too trivial to be admitted as an indication of any sulphate with an alkaline base ; and arising, probably, from unavoidable errors in the experiment. (F. a.) If in any mixture of salts, free from the earthy muriates, we are certain that no other sulphates exist beside those of lime and magnesia, their estimation becomes extremely simple. Decompose two equal quantities of the salt in question,...
Página 292 - ... much sulphate of barytes they ought respectively to afford ; and then compared the estimated quantity, with that which was actually obtained. The earthy carbonates, for example, precipitated from 1000 grains of Lymington salt, which had previously been digested with alcohol, were converted into 31 grains of calcined sulphates, consisting of 19 grains of dry sulphate of magnesia, and 12 grains of dry sulphate of lime. Now from the magnesian sulphate...

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