Repertory of Arts, Manufactures, and Agriculture: Consisting of Original Communications, Specifications of Patent Inventions ...T. and G. Underwood, 1808 |
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Seite 21
... five pounds of tormentil or septfoil root , and one ounce and a half of Bengal catechu . That the method of preparing the said ouze or astringent liquor for tanning of skins is as follows the above materials are powdered , and put into ...
... five pounds of tormentil or septfoil root , and one ounce and a half of Bengal catechu . That the method of preparing the said ouze or astringent liquor for tanning of skins is as follows the above materials are powdered , and put into ...
Seite 22
... five days , or there- abouts , according to the thickness of the skins ; after which the skins are to be taken out and dried in the usual manner , and the same are then ready for the currier . That the materials of which the ouze or ...
... five days , or there- abouts , according to the thickness of the skins ; after which the skins are to be taken out and dried in the usual manner , and the same are then ready for the currier . That the materials of which the ouze or ...
Seite 40
... five feet lower than this tube . It is material to return the water to the boiler , as , being nearly at a boiling heat , a considerable expense of fuel is thereby saved . The large pipes are ten inches in diameter , and are made of the ...
... five feet lower than this tube . It is material to return the water to the boiler , as , being nearly at a boiling heat , a considerable expense of fuel is thereby saved . The large pipes are ten inches in diameter , and are made of the ...
Seite 41
... five years experience of cotton mills on what was , at that time , reckoned the most approved plan . After having ascertained these results , the memorialist , in 1800 , drew a plan similar to that now presented to the Society , and ...
... five years experience of cotton mills on what was , at that time , reckoned the most approved plan . After having ascertained these results , the memorialist , in 1800 , drew a plan similar to that now presented to the Society , and ...
Seite 44
... five other mills being heated in a similar manner , by the direction of the memorialist , are presented to the Society . The application of the principle to buildings already constructed , it is presumed , will be sufficiently obvious ...
... five other mills being heated in a similar manner , by the direction of the memorialist , are presented to the Society . The application of the principle to buildings already constructed , it is presumed , will be sufficiently obvious ...
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acres acrospire alkali amianthus ammonia apparatus appeared barley barytes body boiler bottom bricks carriage centre charcoal clay coal combination constructed copper corn crop crystallised decomposition degree described distilled water earth electrical evaporation experiments feet fixed floors fluid frame furrows gills grain ground harrow heat hemp Hertfordshire improved inches invention iron kiln land Langreo leather lever lime liquor Malt manner manufacture manure means metal method mode motion mould muriatic acid negative nitric acid observed operation oxyd oxygen pass piece pipes pit-coal placed planks plants plate plough positive potash present produce pulley purpose quantity radicle rollers rope salt schiste screws seed shew ship or vessel ships and vessels side soda soil solution sowing sown Specification spirits of wine springs substance sufficient sulphate sulphuric acid surface tannin tanning thereof thick tion trough tube turmeric vegetable weight wheel wire XII.-SECOND SERIES zinc
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Seite 169 - 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...
Seite 257 - It will be a general expression of the facts that have been detailed, relating to the changes and transitions by electricity, in common philosophical language, to say that hydrogen, the alkaline substances, the metals, and certain metallic oxides, are attracted by negatively electrified metallic surfaces, and repelled by positively electrified metallic surfaces; and contrariwise, that oxygen and acid substances are attracted by positively electrified metallic surfaces, and repelled by negatively...
Seite 86 - 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...
Seite 234 - Provisions in lieu thereof," it was enacted, that it should and might be lawful for any court to pass upon any person who should be lawfully convicted before such court of felony, with benefit of clergy, or of any grand larceny, or of any petit larceny, the sentence of imprisonment to hard labour, either simply and alone, or in addition to any other sentence which such court might or...
Seite 172 - 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...
Seite 189 - The process was conducted for 24 hours, and at the end of this time neither of the portions of the water altered in the slightest degree the tint of litmus. It seems evident then that water, chemically pure, is decomposed by electricity into gaseous matter alone, into oxygen and hydrogen.
Seite 276 - I had to a certain extent adopted this opinion," an opinion of Fabroni's ; " but the new fact immediately proved that another power must necessarily be concerned, for it was not possible to refer the electricity exhibited by the opposition of metallic surfaces to any chemical alterations, particularly as the effect is more distinct in a dry atmosphere, in which even the most oxidizable metals do not change, than in a moist one, in which many metals undergo oxidation.
Seite 188 - Volatile alkali likewise seemed to be always formed in very minute portions, during the first few minutes in the purified water in the gold cones, but the limit to its quantity was soon attained. It was natural to account for both these appearances, from the combination of nascent oxygen and hydrogen respectively ; with the nitrogen of the common air dissolved in the water : and Dr. Priestley's experiments on the absorption of gases by water (on this idea) would furnish an easy explanation of the...
Seite 290 - ... proceed to put in more faggots, till the kiln and its arches look white, and the fire appears at the top of the kiln; upon which they slacken the fire for an hour, and let all cool by degrees. This they continue to do, alternately heating and slacking, till the ware be thoroughly burnt, which is usually effected in forty-eight hours.
Seite 270 - Allowing combination to depend upon the balance of the natural electrical energies of bodies, it is easy to conceive that a measure may be found of the artificial energies, as to intensity and quantity produced in the common electrical machine, or the Voltaic apparatus, capable of destroying this equilibrium ; and such a measure would enable us to make a scale of electrical powers corresponding .to degrees of affinity.