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, 第 1 巻Robert Hunt Spicer brothers, and W. Clowes & sons, 1851 |
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action alumina angle apparatus applied arrangement axis beautiful brass Brazils Cabinet-work called carbonate carbonic acid centre chemical chronometers citric acid Class clock coal collection colour consists construction containing copper crystals cylinder Daguerreotype dial diurnal motion effect employed exhibited Exhibitors feet fixed flax Gallery gallic acid glass globe grain ground gutta percha heat horizontal important improved inches instrument iron lead lever lime machine magnet manufacture matter means ment mercury metal microscope motion needle obtained orchil ordinary ornamental Orreries oxide paper passing patent peculiar pendulum pianoforte piece placed plate plough portion potash prepared present principle produced Prussian blue purpose pyrites quantity revolving Rocella tinctoria salt scale screw side silver solution specimens spring steel substance sulphate sulphuric acid surface tartaric acid temperature tion tons tube turning variety vessels vibration weight wheels wire wood zinc
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413 ページ - ... 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...
6 ページ - ... 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...
164 ページ - 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...
399 ページ - 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.
74 ページ - 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.
82 ページ - 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.
226 ページ - ... 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...
6 ページ - 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...
399 ページ - 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.