 | Johann Beckmann - 1846 - 602 pages
...The difficulty of the art consists in the proneness of the copper to pass from the state of protoxide into that of peroxide, in which latter state it tinges...but this is a defect which might no doubt be easily remedied3. 1 [M. Langlois names the following writers : •' Neri en 161 2, Handicquer de Blancourt... | |
 | Johann Beckmann - 1846 - 578 pages
...on crown-glass, has of late years been revived by the Tyne Company in England, atChoisy in France2, and in Suabia in Germany, and in 1827 the Academy...but this is a defect which might no doubt be easily remedied3. 1 [M. Langlois names the following writers : -' Neri en 1 6 1 2, Handicquer de Blancourt... | |
 | Charles Barlow - 1772 - 544 pages
...that the colour in question was derived from gold. The art of tinging glass by protoxide of copper, or flashing it on crown-glass, has of late years been...at Berlin gave a premium for an imperfect receipt. These observations will now be concluded by a few notices respecting glass tinged by fusion with gold,... | |
 | George Ripley, Charles Anderson Dana - 1874 - 856 pages
...pass to a peroxide and produce a green tinge ; but the practice has been again introduced with success by the Tyne company in England, at Choisy in France, and in other places. The discovery of the preparation of gold and tin, called purple of Cassius, also afforded... | |
 | Park Benjamin - 1880 - 1002 pages
...pass to a peroxide and produce a green tinge ; but the practice has been again introduced with success by the Tyne Company in England, at Choisy in France, and in other placee. The disеотиу of the preparation of gold and tin, called purple of Cassius, also... | |
 | Newcomen Society (Great Britain) - 1927 - 292 pages
...us that " The art of tinging glass by protoxide of copper and flashing it on crown glass has lately been revived by the Tyne Company in England, at Choisy in France, and in Suabia in Germany."20 DISCUSSION. MR. NOKI. HEATON, in opening the discussion, expressed his appreciation of... | |
 | 1837 - 756 pages
...yards over a valley. MANUFACTURES. PAINTING ON GLASS. The art of tinging glass by protoxide of copper flashing it on crown-glass, has of late years been...glasses I am ignorant ; the specimens that I have seen w*re so strongly coloured as to be in parts almost opake, but tins is a defect which might uo doubt... | |
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This change of colour is very remarkable, as it is obvious that no change of oxygenation can possibly take place during the recuisson. The art of tinging glass by protoxide of copper and flashing it on crown-glass, has of late years been revived by the... 