The Repertory of arts and manufactures [afterw.] arts, manufactures and agriculture |
Részletek a könyvből
1 - 5 találat összesen 26 találatból.
2. oldal
... pressed towards the lower by means of the screws B B , so as firmly to take hold of the hide or leather , the cylinders A A being made to revolve , will force the hide or leather against the edge of the knife , which will split or shave ...
... pressed towards the lower by means of the screws B B , so as firmly to take hold of the hide or leather , the cylinders A A being made to revolve , will force the hide or leather against the edge of the knife , which will split or shave ...
36. oldal
... pressed themselves upon the notice of the Society , respecting boys employed by chimney - sweep- ers as climbers ; operated on the minds of many indivi- duals in this town , and upwards of two years ago gave rise to a general meeting ...
... pressed themselves upon the notice of the Society , respecting boys employed by chimney - sweep- ers as climbers ; operated on the minds of many indivi- duals in this town , and upwards of two years ago gave rise to a general meeting ...
42. oldal
... and out of the pipes on the tops of the chimneys ; where they are pressed together between the balls B , they should not be thicker than three- eighths eighths of an inch . Great care must also be 42 Account of an Apparatus.
... and out of the pipes on the tops of the chimneys ; where they are pressed together between the balls B , they should not be thicker than three- eighths eighths of an inch . Great care must also be 42 Account of an Apparatus.
56. oldal
... pressing it down may not be incommoded . Plates of lead are also to be cut of the weight of the tubes , in order to have their tare always at hand , which may be adjusted exactly by slips of paper . It is , moreover , necessary to keep ...
... pressing it down may not be incommoded . Plates of lead are also to be cut of the weight of the tubes , in order to have their tare always at hand , which may be adjusted exactly by slips of paper . It is , moreover , necessary to keep ...
58. oldal
... pressed down with the left . A second spoonful is then put in , and this is continued until it is filled to within a line of its mouth . With a little practice , the force of the strokes and the pressure may be so regulated , that a ...
... pressed down with the left . A second spoonful is then put in , and this is continued until it is filled to within a line of its mouth . With a little practice , the force of the strokes and the pressure may be so regulated , that a ...
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Más kiadások - Összes megtekintése
Gyakori szavak és kifejezések
acetate acetic acid acres alcohol alkalies ammonia animal apparatus appear axis axle body carbonate carriage centre coal colour combined combustion compound contained cylinder decomposed decomposition described distilled ditto draw edge employed experiments fastened fecula fixed frame furrow gate grain gypsum half heat horses hydrogen inclined planes indigo indigo plant invention iron kinds of charcoal land length lime liquor luminous machine manner manure means metal method mines mixture mould-board muriate of potash muriatic acid gas necessary nitric acid observed operation oxen oxyd oxygen oxymuriatic acid gas perpendicular phosphoric acid phosphorus piece plants Plate plough potash potassium produced proper proportion prussic acid quantity quill roller saltpetre screw shaft sheep shewn shews side soil substance sufficient sugar sulphuretted hydrogen sulphuric acid surface tion tube upper vegetable weight wheels width woad wood XVIII.-SECOND SERIES
Népszerű szakaszok
15. oldal - 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...
321. oldal - 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...
199. oldal - Witty do declare that the nature of my said invention, and the manner in which the same is to be performed, is described and ascertained...
244. oldal - ... on the wooden railways, as it would help to pay the interest by reducing the repairs of the rails, and if iron should take any sudden rise, there was nothing to do but to take them up, and send them away as pigs.
244. oldal - Railways have been in use in this kingdom time out of mind, and they were usually formed of scantlings of good sound oak, laid on sills or sleepers of the same timber, and pinned together with the same stuff.
168. oldal - July; and when these had afforded shoots about four inches long, the remaining ligatures were taken off, to permit the excess of sap to pass on ; and the young shoots were nailed to the wall. Being there properly exposed to light^ their wood ripened well, and afforded blossoms in the succeeding spring : this would, I do not doubt," have afforded fruit ; but that, leaving my residence at lilton for this?
302. oldal - ... and when it is exposed to the usual percussion of the water, the transparent parts of its body are alone luminous. In the month of September 1805, I again visited Herne Bay, and frequently had opportunities of witnessing the luminous appearance of the sea. I caught many of the hemispherical and minute species of medusa, but not one of the beroe fulgens.
97. oldal - If oxymuriatic acid gas be introduced into a vessel exhausted of air, containing tin, and the tin be gently heated, and the gas in sufficient quantity, the tin and the gas disappear, and a limpid fluid, precisely the same as Libavius's liquor is formed ; — it occurred to me, that if this substance is a combination of muriatic acid and oxide of tin, oxide of tin ought to be separated from it by means of ammonia. I admitted...
374. oldal - The luminous matter in all situations, so far from possessing phosphoric properties, is incombustible, and loses the quality of emitting light, by being dried or much heated. The exhibition of light, however long it may be continued, causes no diminution of the bulk of the luminous matter. It does not require the presence of pure air, and is not extinguished by other gases.
304. oldal - ... suddenly it changed to a white flaming colour all around : this bore no resemblance to the sparkling or glowing appearance he had observed on other occasions in seas near the equator, but was a regular white colour, like milk, and did not continue more than ten...