The London Journal of Arts and Sciences, Volumen7Sherwood, Neely, and Jones, 1824 Containing reports of all new patents, with a description of their respective principles and properties: also, original communications on subjects connected with science and philosophy; particularly such as embrace the most recent inventions and dicoveries in practical mechanics. |
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Página 19
... usual means , and then immersed in a cold solution of alum in water , for three or four hours ; it is then to be rinsed in clear water , which renders it in a proper state for the dye vat . The dye is produced by the Prussian Blue ...
... usual means , and then immersed in a cold solution of alum in water , for three or four hours ; it is then to be rinsed in clear water , which renders it in a proper state for the dye vat . The dye is produced by the Prussian Blue ...
Página 23
... usual . The patentee concludes his specification by saying " In describing this improved gasometer , I have necessarily mentioned several parts and materials which are not new , and are not intended to be claimed by me as such ; my ...
... usual . The patentee concludes his specification by saying " In describing this improved gasometer , I have necessarily mentioned several parts and materials which are not new , and are not intended to be claimed by me as such ; my ...
Página 34
... usual quality , loses about of its weight of carbon , by being made into gas , and then makes about 85 / cubic feet of gas . That there is a loss of 28 per cent . of illuminating power , by converting oil into gas , instead of burning ...
... usual quality , loses about of its weight of carbon , by being made into gas , and then makes about 85 / cubic feet of gas . That there is a loss of 28 per cent . of illuminating power , by converting oil into gas , instead of burning ...
Página 74
... metal meet ; this cut is for the purpose of introducing the thin back part of the saw blade . The handles of these saws are made much in the usual shape ; the mode of con- necting them to the back and blade , is by 74 Recent Patents .
... metal meet ; this cut is for the purpose of introducing the thin back part of the saw blade . The handles of these saws are made much in the usual shape ; the mode of con- necting them to the back and blade , is by 74 Recent Patents .
Página 75
... usual way . Or if it should be wished to render the blades capable of being removed from the backs , for the purpose of straightening them , then it is proposed to make the blades as above , and merely in- troduce their back edges into ...
... usual way . Or if it should be wished to render the blades capable of being removed from the backs , for the purpose of straightening them , then it is proposed to make the blades as above , and merely in- troduce their back edges into ...
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Página 255 - And God said: Let there be light; and there was light. And God saw the light, that it was good; and God divided the light from the darkness.
Página 328 - ENCYCLOPEDIA of AGRICULTURE: comprising the Laying-out, Improvement, and Management of Landed Property, and the Cultivation and Economy of the Productions of Agriculture. With 1,100 Woodcuts. 8vo.
Página 325 - Middlesex, mechanist, in consequence of a communication made to him by a certain foreigner residing abroad...
Página 80 - Thus in the whole machinery of springs and Rivers, and the apparatus that is kept in action for their duration, through the instrumentality of a system of curiously constructed hills and valleys, receiving their supply occasionally from the rains of heaven, and treasuring it up in their everlasting storehouses to be dispensed perpetually by thousands of never-failing fountains, we see a provision not less striking, than it is important.
Página 192 - Squadron, in consequence of a communication made to him by a certain foreigner residing abroad, for a certain method or methods of catching or taking mackarel and other fish.
Página 219 - On the Utility and probable Accuracy of the Method of determining the Sun's Parallax, by observations on the planet Mars near his opposition ; by Mr.
Página 158 - This day being the fourth anniversary of the Society, a numerous meeting of the members took place at their apartments in Lincoln's Inn Fields, when a very satisfactory report upon the state of the society's affairs and proceedings during the last year, -was read and ordered to be printed. This report paid a due tribute of respect to several members, which the society has lost by death in the 10m. 0' go is- 44
Página 317 - ... led to some awkward anomalies, on account of its having been customary to take the moon's centre reduced to the meridian, and to compare it with the apparent places of stars passing the meridian about the same time in any parallel of declination. The newly proposed method consists in merely observing with a transit instrument, the differences of right ascension between the border of the moon, and certain fixed stars previously agreed upon, restricting the observations to such stars as differ...
Página 276 - London, merchant, in consequence of a communication made to him by a certain foreigner residing abroad, for an invention of " certain improvements in boilers for generating steam.
Página 159 - Esq. FRS, as a token of the high estimation in which it holds his valuable invention of an engine for calculating mathematical and astronomical tables, being the first medal awarded by the Society. A similar Gold Medal to Professor...