Repertory of Arts, Manufactures, and Agriculture: Consisting of Original Communications, Specifications of Patent Inventions ...T. and G. Underwood, 1808 |
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Seite 80
... corn , seeds , and pulse from the straw and chaff , and for which said engine or machine the said William Lester obtained his Majesty's letters patent , dated January 16 , 1805. Dated Nov. 21 , 1807 . SAMUEL ROBERTS , of Sheffield , in ...
... corn , seeds , and pulse from the straw and chaff , and for which said engine or machine the said William Lester obtained his Majesty's letters patent , dated January 16 , 1805. Dated Nov. 21 , 1807 . SAMUEL ROBERTS , of Sheffield , in ...
Seite 109
... corn , and cut or pull the weeds that grow in such intervals without injuring the corn . These knives are strong , and have a sharp up edge in front . EE are the two handles , by which the person who holds them may direct the knives or ...
... corn , and cut or pull the weeds that grow in such intervals without injuring the corn . These knives are strong , and have a sharp up edge in front . EE are the two handles , by which the person who holds them may direct the knives or ...
Seite 110
... corn previous to sowing the grass- seeds , and afterwards harrow them in . Its utility in every respect appeared to me so very great , that I was induced to adopt the plan of sowing my corn with the drill upon my fallows this spring ...
... corn previous to sowing the grass- seeds , and afterwards harrow them in . Its utility in every respect appeared to me so very great , that I was induced to adopt the plan of sowing my corn with the drill upon my fallows this spring ...
Seite 113
... to its true source . Hence itis , that the two different modes of watering and not` watering the corn upon the floors , appear in the evidence VOL . XII , -SECOND SERIES . Q to to be supported by practical facts , which are in ( 113 )
... to its true source . Hence itis , that the two different modes of watering and not` watering the corn upon the floors , appear in the evidence VOL . XII , -SECOND SERIES . Q to to be supported by practical facts , which are in ( 113 )
Seite 115
... corn empty , and perfectly exhausted of its former contents . The radicle is much more rapid in its formation and growth than the acrospire , because , as it is destined to prepare and transmit to the stem nearly all its pabula , it is ...
... corn empty , and perfectly exhausted of its former contents . The radicle is much more rapid in its formation and growth than the acrospire , because , as it is destined to prepare and transmit to the stem nearly all its pabula , it is ...
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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
Beliebte Passagen
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.