A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . The metal solidifies immediately, and the pot having been emptied, the carriage ofmoulds is run on its wheels Q, from under the cradle frame, and the screws having beenloosened, the moulds are caused to fall to pieces, and each bar, as it is exposed, is taken bytongs and plunged into cold water, as much to save time as to soften the bar by suddencooling. The bars produced from the whole pot of metal are numbered with a distinctivefigure to designate the pot, and
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . The metal solidifies immediately, and the pot having been emptied, the carriage ofmoulds is run on its wheels Q, from under the cradle frame, and the screws having beenloosened, the moulds are caused to fall to pieces, and each bar, as it is exposed, is taken bytongs and plunged into cold water, as much to save time as to soften the bar by suddencooling. The bars produced from the whole pot of metal are numbered with a distinctivefigure to designate the pot, and with two letters to indicate the days melting; assay piecesare then cut from the first, middle, and last bars of the set. The assay pieces are properlysecured, certified, and sent to the non-resident assayers of the Jlint. (For an account ofthis process, see Assay.) In the event of the assay being unsatisfiictory, the pot is stopped,and the metal is adjusted as to quality and remclted. The assays being satisfactory, thebars arc forwarded to the coining department, where they undergo the same process ofmanufacture as gold is su
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
