Elements of electro-metallurgy (Google eBook)

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J. Wiley, 1852 - Electrometallurgy - 364 pages
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Page 291 - When thou hadst overcome the sharpness of death, thou didst open the kingdom of heaven to all believers. Thou sittest at the right hand of God in the glory of the Father. We believe, that thou shalt come to be our judge. We therefore pray thee, help thy servants, whom thou hast redeemed with thy precious blood. Make them to be numbered with thy saints in glory everlasting.
Page 349 - ... of the sole working or making of any manner of new manufactures within this Realm, to the true and first inventor and inventors of such manufactures, which others at the time of making such letters patents and grants shall not use, so as also they be not contrary to the law nor mischievous to the State, by raising prices of commodities at home, or hurt of trade, or generally inconvenient...
Page 291 - God : we acknowledge Thee to be the Lord. All the Earth doth worship Thee : the Father everlasting. To thee all angels cry aloud : the Heavens and all the Powers therein To Thee Cherubim and Seraphim : continually do cry, Holy, Holy, Holy : Lord God of Sabaoth, Heaven and Earth are full of the Majesty : of Thy glory.
Page 291 - To thee, all Angels cry aloud; the Heavens, and all the Powers therein. To thee, Cherubim and Seraphim continually do cry, Holy, Holy, Holy, Lord God of Sabaoth; Heaven and earth are full of the Majesty of thy Glory.
Page xviii - Mr. De la Rue devised a peculiar form of Daniell's battery, and observed that ' the copper plate is also covered with a coating of metallic copper, which is continually being deposited; and so perfect is the sheet of copper thus formed that, being stripped off, it has the counterpart of every scratch of the plate on which it is deposited ' ('Philosophical Magazine,
Page 44 - The poles are merely the surfaces or doors by which the electricity enters into or passes out of the substance suffering decomposition.
Page 53 - ... that hydrogen, the alkaline substances, the metals, and certain metallic oxides, are attracted by negatively electrified metallic surfaces, and repelled by positively electrified metallic surfaces ; and contrariwise, that oxygen and acid substances are attracted by positively electrified metallic surfaces, and repelled by negatively electrified metallic surfaces ; and these attractive and repulsive forces are sufficiently energetic to destroy or suspend the usual operation of elective affinity.
Page 281 - The colours displayed by fusible metal possess at first extraordinary beauty, which in a short time is partially lost, owing to a change that occurs upon the surface of the metal. A few months ago, while engaged upon some experiments in electrotyping, I was led to think that by this process the hues of the pearl might be readily transferred to those metals which from their hardness are incapable of receiving impressions in mass, but yet, on account of their freedom from oxidation, retain for a long...
Page 282 - I pour it upon oiled paper, and when the air bubbles cease to rise through the metal the oxide is skimmed from its surface with a card, and as soon as it presents the appearance of a perfect mirror the shell is forced down upon it by a sudden pressure. When the metal has cooled I remove it from the shell, and having ascertained the accuracy of the impression, immediately plunge it, before any change of the surface can occur, into the silver solution, thereby completing the circuit between the poles...
Page 281 - A few months ago, while engaged upon some experiments in electrotyping, I was led to think that by this process the hues of the pearl might be readily transferred to those metals, which from their hardness are incapable of receiving impressions in mass, but yet, on account of their freedom from oxidation, retain for a long time a surface comparatively pure. I therefore took a Smee's battery, which I had just constructed, and after several experiments succeeded in obtaining small sheets of silver,...

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