History of the Processes of Manufacture and Uses of Printing, Gas-light, Pottery, Glass and Iron

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J. Bradburn, 1864 - 392 páginas
 

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Página 72 - Wherefore, brethren, look ye out among you seven men of honest report, full of the Holy Ghost and wisdom, whom we may appoint over this business.
Página 61 - The First part of the Contention betwixt the two famous Houses of Yorke and Lancaster...
Página 337 - On this new field of inquiry, he set out with the assumption that crude iron contains about 5 per cent. of carbon ; that carbon cannot exist at a white heat in the presence of oxygen without uniting therewith, and producing combustion ; that such combustion would proceed with a rapidity dependent on the amount of surface of carbon exposed ; and lastly, that the temperature which the metal would acquire would be also dependent on the rapidity with which the oxygen and carbon were made to combine...
Página 339 - This having been done, and the fluid iron run in, a rapid boiling up of the metal will be heard going on within the vessel. the metal being tossed violently about and dashed from side to side, shaking the vessel by the force with which it moves. From the throat of the converting vessel, flame will then immediately issue, accompanied by a few bright sparks.
Página 339 - ... minutes, during which time the oxygen in the atmospheric air combines with the carbon contained in the iron, producing carbonic acid gas, and at the same time evolving a powerful heat. Now, as this heat is generated in the interior of, and is...
Página 368 - irons have sustained, and the apparent benefit to those of" others, " together with the great saving effected by the heated blast, there seems good reason for the process becoming as general as it has done.
Página 45 - ... The spectators are now absolutely electrified. The marquis quietly adds his usual ' ten,' and there is an end of the contest. Mr Evans, ere his hammer fell, made a due pause, and, indeed, as if by something preternatural, the ebony instrument seemed itself to be charmed or suspended ' in mid air.' However, at length down dropped the hammer, and, as Lisardo has not merely poetically expressed himself ' the echo' of the sound of that fallen hammer ' was heard in the libraries of Rome, of Milan,...
Página 345 - ... never fails to impart to iron that is brought under its influence. At the same time, this system of manufacturing malleable iron offers extraordinary facility for making large shafts, cranks, and other heavy masses ; it will be obvious that any weight of metal that can be .founded in ordinary...
Página 141 - Assyria, with glazed representations, this apparently insignificant, but imperishable object, has confirmed the descriptions of the walls of Babylon, which critical scepticism had denounced as fabulous. The Roman bricks have also borne their testimony to history. A large number of them present a series of the names of consuls of imperial Rome; while others show that the proud nobility of the eternal city partly derived their revenues from the kilns of their Campanian and Sabine farms.
Página 12 - ... fine one third shall go to the state, one third to the Signori Giustizieri Vecchi, to whom the affair is committed, and one third to the accuser. With this condition, however, that the artists who make the said works in this city may not expose the said works to sale in any other place but their own shops, under the pain aforesaid, except on the day of Wednesday at St Paolo, and on Saturday at St Marco, under the pain aforesaid.

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