Jordantype, otherwise called 'electrotype : its early history, being a vindication of the claims of C.J. Jordan as the inventor of electrometallurgy / by Henry Dircks.
- Henry Dircks
- Date:
- 1852
Licence: Public Domain Mark
Credit: Jordantype, otherwise called 'electrotype : its early history, being a vindication of the claims of C.J. Jordan as the inventor of electrometallurgy / by Henry Dircks. Source: Wellcome Collection.
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![rixnents on a method of engraving in relief, both of which have been comparatively successful, and will, in my opinion, ultimately prove useful in the arts. “ I shall take an early opportunity of laying my process before the society, with specimens produced by it I should not have brought this subject before the society thus early but for the following pas¬ sage, that appeared in last Saturday's Athenaeum,—‘ Prof. Jacobi, at St. Petersburgh, has made a discovery which promises to be of im¬ portance to the arts : he has found a method (if we understand our informant rightly) of converting any line, however fine, into relief by a galvanic process, the emperor of Kussia having placed funds at his disposal, to enable him to perfect his discovery.’ “ That I have been engaged in this process the time above stated is known to several gentlemen, who are now members of this society. “ I am yours respectfully, “ Rev. T. Dwyer.” * “ T. Spencer. Nothing further appears on the journals of the society before the annexed entry, viz : (i Thursday, Sept. 12, 1839. “ Mr. Spencer then proceeded to read a paper giving an account of some experiments made to ascertain how far voltaic electricity might be usefully applied to the purposes of working in metal. <( Resolved, that Mr. Spencer’s paper be printed at the expense of the society, under the superintendence of the council of the society,” MR. JORDAN’S CASE. On the 22nd of May, 1839, Mr. C. J. Jordan addressed a Letter on “ Engraving by Galvanism,” to the ‘ Mechanics’ Magazine,’ which appeared in the number of that periodical for June 8, 1839. In that letter Mr. Jordan describes the electrotypic apparatus, —notices the usual deposits obtained by means of the earlier kinds of galvanic batteries,*—also by the use of Daniell’s sustaining battery, and Dr. Bird’s modification of it (constituting, indeed, the single-cell process)—states on what depends the tenacity of electrotype deposit, —specifies type-matrices, coins, dies, engravings, tubes, vessels, and other products,—and, in short, fully, clearly, succinctly developes the entire electro-metallurgic process. [This Letter will be found in the next chapter, p, 7-] * It may be mentioned here, that this mode—known as the ‘ bat¬ tery process,’—has been found to be, after all, the most economical, and, in manufacturing operations, is that almost universally resorted to.](https://iiif.wellcomecollection.org/image/b30480097_0006.jp2/full/800%2C/0/default.jpg)
