Workshop Receipts ...E. & F. N. Spon, 1883 |
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Página 188
... GILDING . Gilding by Dipping . The baths employed contain gold in the form of a double salt of protoxide , and should possess little stability , that is to say , be decomposed and abandon the gold under feeble influences , and should ...
... GILDING . Gilding by Dipping . The baths employed contain gold in the form of a double salt of protoxide , and should possess little stability , that is to say , be decomposed and abandon the gold under feeble influences , and should ...
Página 189
... gilding with a given quantity of gold , than one bath alone . The gilding is done in a few seconds ; the finishing operations consist in rinsing in fresh water , drying in dry and warm saw - dust , and burnish- ing , if desired ...
... gilding with a given quantity of gold , than one bath alone . The gilding is done in a few seconds ; the finishing operations consist in rinsing in fresh water , drying in dry and warm saw - dust , and burnish- ing , if desired ...
Página 190
... Gilding Silver by Dipping . - The silver Sometimes , when the first gild- ing is imperfect , instead of colouring by the process just described , the articles are placed for a few moments into the electro- bath . For articles which ...
... Gilding Silver by Dipping . - The silver Sometimes , when the first gild- ing is imperfect , instead of colouring by the process just described , the articles are placed for a few moments into the electro- bath . For articles which ...
Página 191
... Gilding by Diluted Bath . - This bath should be employed only as a comple- ment to the cleansing process , before a more resisting gilding , as its results have little durability . Water , 2 galls .; bicarbonate of potash , 7 oz ...
... Gilding by Diluted Bath . - This bath should be employed only as a comple- ment to the cleansing process , before a more resisting gilding , as its results have little durability . Water , 2 galls .; bicarbonate of potash , 7 oz ...
Página 192
... gilding is very thin , but quite resisting , especially after the action of the burnishing tool , which forces the gold into the pores of the silver . If a red shade be desired , add a small proportion of pure copper to the gold to be ...
... gilding is very thin , but quite resisting , especially after the action of the burnishing tool , which forces the gold into the pores of the silver . If a red shade be desired , add a small proportion of pure copper to the gold to be ...
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Termos e frases comuns
allowed alum ammonia antimony applied bath blue boiling borax bottle brass brush burnished calcined carbonate chloride clean cloth coat cold collodion colour cool copper covered cyanide deposit diluted dipped dissolved dried edge filter fire fustic gallons gelatine gilding glass glaze glue gold grains ground gutta-percha heat hydrochloric acid immersed inch iron leather lime linseed oil liquid liquor litharge logwood marble melted mercury metal mixed mixture mould nitrate nitrate of silver nitric acid oxide paint paper pearlash piece pint plate polish potash powder precipitate prepared pure quantity removed sal ammoniac salt seed-lac shellac soap soda soft solder solution spirits of wine stirring stone sufficient sulphate sulphuric acid surface thick thin tint tion turpentine varnish vessel warm wash white-lead wire wood yellow zinc
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