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See also:SHEFFIELD See also:PLATE
, the name applied to a variety of articles of domestic use or See also:ornament, made of See also:copper coated with See also:silver by a See also:special and now abandoned See also:process
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Many of them were actually manufactured in See also:Birmingham, but as the See also:secret of producing the material was discovered and brought to perfection in See also:Sheffield, the name of that See also:town was naturally connected with it, and thence transferred to articles constructed from it
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In 1942 a workman named See also: The junction of the edges of the silver and copper-blend was treated with a See also:flux of See also:borax and the whole was submitted to the See also:heat of a See also:furnace until the silver was seen to be melting, when it was instantly removed, care being taken to avoid pressing upon the upper or See also:lower surfaces, as the liquid silver in that See also:case would have been squeezed out from between the two enclosing plates and the operation ruined . It was then See also:left to cool, and after being thoroughly cleansed presented the appearance of a copper ingot with one silver See also:side . This was passed again and again between gradually approximated rollers, with occasional See also:annealing, until the desired thickness had been attained . The See also:great See also:extension of surface thus produced had the See also:drawback of exaggerating any small defect in the See also:union of the two metals, increasing it to a See also:blister of an See also:inch or more in See also:diameter . It was, however, fortunately found easy to remedy this . The blister if unbroken washeated, pricked, and then rubbed level with a burnisher; if, as sometimes happened, the silver had flaked away it was replaced by coatings of pure See also:leaf silver rubbed in with a. burnisher . The plate when passed as flawless was cut into the desired form and moulded as far as possible into shape, the edges where necessary being soldered . At first only one surface of the copper was plated with silver and thus its usefulness was necessarily restricted, but it was a See also:simple See also:matter to apply the silver to both sides and thenceforward whatever was made in solid metal could be reproduced in plate, and See also:firm after firm went into the business, ever and anon introducing further improvements . The possibility of See also:embossing the metal beyond a certain point without fracturing the coating of silver was got over by casting or stamping the raised ornament in silver, filling the hollows with a form of See also:pewter and soldering the result to the appropriate See also:part of the See also:general See also:design . Another difficulty, the concealment of the inner core of copper which was seen as a thin red See also:line when a cut edge was exposed, was met about 1784 by See also:George Cadman, who adopted the practice of soldering on an edging, generally ornamented, of solid silver so as to See also:cover the junction, and the presence of this is one of the trustworthy tests by which genuine Sheffield plate may be recognized . The labour of See also:rolling the metal by See also:hand was done away with about 1960, by the firm of Tudor, See also:Leader & Sherburn, who first employed See also:horse-See also:power, and for more than See also:half a See also:century the See also:trade both in Sheffield and Birmingham continued to flourish . In 1736 there were under 10,000 inhabitants in the former See also:city; in 176o when See also:Horace See also:Walpole passed through it, buying for two guineas a pair of candlesticks of the See also:local plate, which he thought " quite See also:pretty," and pronouncing it to be " one of the foulest towns in See also:England," there were two-and-twenty thousand who remitted eleven thousand pounds a See also:week to See also:London . It would be impossible, were it desirable, to enumerate all the varieties of the articles turned out, or to overpraise the beauty and elegance of most of them . The designs were identical with those in favour with the See also:gold- and silver-smiths of the See also:period, which was happily one when exceptionally See also:good See also:taste prevailed . The appreciation of See also:light and well-proportioned curves and the skilful employment of well-contrived pierced See also:work are conspicuous features . The success was, however, doomed to be See also:short lived and to come to an end as swiftly as it had grown up . In the See also:year 1800 W . See also:Cruikshank was already experimenting with a process of electro-plating, and in 1839 Mr See also:Spencer in England, and in 1838 See also:Professor M . H . See also:Jacobi (18(31—1894) in See also:Russia, working independently, succeeded in contriving methods which could be made commercially profitable . Two years later Messrs See also:Elkington in London and M. de Ruolz of See also:Paris started in business on those lines, and the slower and consequently more costly manufacture at Sheffield and Birmingham rapidly died out . Of See also:recent years old Sheffield plate after See also:long neglect has come into See also:fashion again, and genuine articles in good See also:condition have greatly gone up in value, often exceeding in cost those of more See also:modern date in See also:sterling silver . Concurrently fraudulent See also:imitation has regrettably increased . In some cases the whole See also:object is a modern See also:reproduction in electro-plate, but more often really old articles from which the See also:original plating has been worn off in course of time have been replated, both equally being in the eyes of the connoisseur' unworthy of serious See also:attention and comparatively valueless . The difference after a little experience is not difficult to detect, though inexpressible in words . The pressure to which the Sheffield plate was submitted produces a definite See also:colour and texture which is absent from the surface produced by the See also:deposit of silver in a liquid See also:medium by See also:electrical means, and the coat of silver is spread by the latter uniformly over the whole surface without a break, while in the former the junction between the embossed ornaments and the silver strips covering the cut edges may often be detected on careful examination . See Sheffield Plate by Bertie Wyllie; H . N . See also:Veitch, Sheffield Plate: its See also:history, manufacture and See also:art (London, 1908) . (M . |
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