The Repertory of arts and manufactures [afterw.] arts, manufactures and agriculture |
Otras ediciones - Ver todas
Términos y frases comunes
acre action acts aforesaid alkali aperture apparatus applied ascer barytes bath bodies boiler boiling bottom bushels caisson canal carbonate of barytes carbonic acid change of figure clay collision colour common common wheat construction contained copper decomposed decomposition described double floating cistern effect elastic equal experiments feet fixed furnace grammes heat improvements inches insoluble salt invention iron larch liquid liquor lock lowest ponds machine magma manner mass means measure mechanical metal method mixture Montagnac moving force non-elastic observed operation orifice oxyd Patent PETER EWART pipe piston Plate present pressure principle produced proportion purpose quantity of motion raised shaft shew side Sir Isaac Newton Smeaton soda soluble solution space spring square steam strontian sub-carbonate of potash sugar sulphate sulphate of barytes sulphuric sulphuric acid Summer Wheat supposed surface tained theory tion tube upper velocity vessel vis viva weight wheel whole XXIII.-SECOND SERIES zinc
Pasajes populares
Página 127 - 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...
Página 165 - ... not perpendicular to the horizon, describes a parabola. These were the beginnings of the doctrine of the motion of heavy bodies, which has been since carried to so great a height by sir Isaac Newton.
Página 70 - Patent] upon the Condition (amongst others) that I the said , by an Instrument in Writing under my Hand and Seal, should particularly describe and ascertain the Nature of the said Invention, and in what Manner the same was to be performed, and cause the same to be filed in within Calendar Months next and immediately after the Date of the said Letters Patent: Now know ye, that I the said do hereby declare the Nature of my said Invention, and in what Manner the same is to be performed...
Página 18 - 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 36 - Trans. 1806, p. 15. are considering the sources of extended exertion or of accumulated energy, whether we compare the accumulated forces themselves by their gradual or by their sudden effects, the idea of mechanic force in practice is always the same, and is proportional to the space through which any moving force is exerted or overcome, or to the square of the velocity of a body in which such force is accumulated.
Página 355 - I have been employed for the last five years in forming a very extensive plantation of larch, on mountains similar to what I have described. The plantation embraces a tract of nearly eighteen hundred Scotch acres, nearly...
Página 227 - To follow the mathematical axiom, that a straight line is the shortest that can be drawn between two points, will not succeed in making the most commodious roads; hills must be avoided, towns must be resorted to, and the sudden bends of rivers must be shunned...
Página 189 - Now, know ye, that, in compliance with the said proviso, I, the said David Stead, do hereby declare that the nature of the said invention, and the manner in which the same is to be performed...
Página 36 - The former conception of a quantity dependent on the continuance of a given vis matrix for a certain time may have its use, when correctly applied, in certain philosophical considerations; but the latter idea of a quantity resulting from the same force exerted through a determinate space is of greater practical utility, as it occurs daily in the usual occupations of men...
Página 191 - ... colour, some other acid or metallic oxide, or calx, which has a greater affinity or attraction for the alkaline salt or earth with which the oxymuriatic acid is mixed or combined, than that acid itself possesses : and if any one of the stronger or more powerful acids be employed, which is either of a corrosive nature, and cannot be safely used, or of a volatile nature, and cannot be used conveniently, such acid must be combined with alkalies, earths, metals...