Hunt's Hand-book to the Official Catalogues: An Explanatory Guide to the Natural Productions and Manufactures of the Great Exhibition of the Industry of All Nations, 1851, Band 1Robert Hunt Spicer brothers, and W. Clowes & sons, 1851 |
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Seite 10
... result of a machine invented by Mr. Thomas Jordan , and known as Jordan's Patent . The great advantages of the machine are , that an exact fac - simile of the original is produced , with any extent of under - cutting , and that several ...
... result of a machine invented by Mr. Thomas Jordan , and known as Jordan's Patent . The great advantages of the machine are , that an exact fac - simile of the original is produced , with any extent of under - cutting , and that several ...
Seite 11
... results of crystallization on a large scale . Amidst the masses of spermaceti , alum , and sulphate of copper , exhibited in this group , will be found some beau- tiful examples of crystalline form ; such , indeed , West . ] 11 MAHOGANY ...
... results of crystallization on a large scale . Amidst the masses of spermaceti , alum , and sulphate of copper , exhibited in this group , will be found some beau- tiful examples of crystalline form ; such , indeed , West . ] 11 MAHOGANY ...
Seite 13
... results in the efficiency and economy of the lights . Some idea of the perfection to which the shaping and ... result by different means , collecting the rays which diverge from a point , called the focus , and projecting them ...
... results in the efficiency and economy of the lights . Some idea of the perfection to which the shaping and ... result by different means , collecting the rays which diverge from a point , called the focus , and projecting them ...
Seite 14
... result is obtained by the light being thrown back from a surface formed into a para- bolic shape , which causes all the rays to proceed in one and the same direction . In the case of refraction , on the other hand , the rays pass ...
... result is obtained by the light being thrown back from a surface formed into a para- bolic shape , which causes all the rays to proceed in one and the same direction . In the case of refraction , on the other hand , the rays pass ...
Seite 22
... result of a peculiar action of vegetable matter upon water charged with soil and a salt of iron . The ironstone nodules of existing peat - bogs appearing altogether analogous to those of the carboni- ferous period , whether in form or ...
... result of a peculiar action of vegetable matter upon water charged with soil and a salt of iron . The ironstone nodules of existing peat - bogs appearing altogether analogous to those of the carboni- ferous period , whether in form or ...
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Hunt's Hand-book to the Official Catalogues: An Explanatory Guide to ..., Band 1 Robert Hunt Keine Leseprobe verfügbar - 1851 |
Hunt's Hand-book To The Official Catalogues: An Explanatory Guide To The ... Robert Hunt Keine Leseprobe verfügbar - 2023 |
Häufige Begriffe und Wortgruppen
agriculture alumina apparatus applied arrangement barley bars beautiful brass called carbon carbonic acid centre chemical Class clock coal collection colour consists construction containing copper Cornwall crop crystals cultivated effect employed England exhibited Exhibitors feet fibre fixed flax Gallery gallic acid glass gold grain ground grown guano gutta percha heat important improved inches instrument iron isinglass Koh-i-Noor lead lever lime machine magnet manufacture matter means ment metal motion mould obtained orchil ordinary ornamental oxide paper patent peculiar pendulum pianoforte placed plant plate plough portion potash prepared principle produce purpose quantity revolving Rocella tinctoria salt scale Scotland screw seed-lac seeds ships showing silver soil solution South species specimens spermaceti steel substance sulphate sulphuric acid superphosphate surface tartaric acid tion tons tube variety various vegetable vessels vibration wheat wheels wire Woad wood zinc
Beliebte Passagen
Seite 413 - ... the dead march in Saul, and other solemn and pathetic strains, when executed with taste and feeling by a master a little accustomed to the touch, excited equal wonder and delight...
Seite 6 - ... the plate. These done, the cuvette is wound up to a sufficient height by a crane, and then, by means of another simple piece of mechanism, is swung over the upper end of the casting table...
Seite 164 - The flax fibre, soaked in the solution of sub-carbonate of soda, was no sooner immersed in the vessel containing the acidulated water than its character became at once changed from that of a damp, rigid aggregation of flax to a light, expansive mass of cottony texture, increasing in size like leavening dough, or an expanding sponge. This...
Seite 399 - Then dip it into a vessel of water, dry it lightly with blotting-paper, and finish drying it at a fire, which will not injure it even if held pretty near : or else it may be left to dry spontaneously. All this is best done in the evening by candlelight. The paper so far prepared the author calls iodized paper, because it has a uniform pale yellow coating of iodide of silver.
Seite 74 - Thus for a very long period this beautiful colour continued to be manufactured from a mineral whose composition was unknown. It was not till the year 1733 that the Swedish chemist Brandt obtained from this ore the metal which he called cobalt, and proved that the colouring matter is the protoxide.
Seite 82 - The principle on which all locks depend, is the application of a lever to an interior bolt, by means of a communication from without ; so that, by means of the latter, the lever acts upon the bolt, and moves it in such a manner as to secure the lid or door from being opened by any pull or push from without.
Seite 226 - ... exceed one thousand tons burden, use anchors formed of wood ; and, taking his hint from them. Captain Vidal drew out a plan, and had an anchor constructed from it under his own inspection, which never failed us even in the severest weather that we afterwards experienced. A delineation of it is annexed, on the scale of a quarter of an inch to a foot. A Two pigs of ballast. B The stock, ring, and part of the shank of the iron anchor; that portion of the latter represented by dots passed down the...
Seite 6 - The glass is prevented from running off the sides of the table by ribs of metal, one of which is placed along the whole length of each side, their depth being the exact measure which it is desired to give to the thickness of the glass. A similar rib, attached to a cross piece, is temporarily held, during the casting, at the lower end of the table. When the whole contents of the crucible have been delivered, a large hollow copper cylinder, which has been made perfectly true and smooth in a turning...
Seite 399 - The paper so far prepared the author calls iodized paper, because it has a uniform pale yellow coating of iodide of silver. It is scarcely sensitive to light, but, nevertheless, it ought to be kept in a portfolio or a drawer until wanted for use. It may be kept for any length of time without spoiling or undergoing any change, if protected from the light.