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Books Books 1 - 5 of 5 on ... manipulation is important, and for the most part the edges of the metals are....  
" ... manipulation is important, and for the most part the edges of the metals are filed or scraped prior to their being soldered, as before observed ; in those cases in which the red-heat is employed, filing or scraping are less imperative, as any greasy... "
An Introduction to Metal-working - Page 28
by J. Charles Pearson - 1904 - 110 pages
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Turning and Mechanical Manipulation: Intended as a Work of General ..., Volume 1

Charles Holtzapffel - Lathes - 1843 - 462 pages
...employed, this is less imperative, as any greasy or combustible matters are burned away, and the borax has the property of combining with nearly all the metallic oxides and earthy bases, thereby cleansing the edges of the metals should that proceeding have been previously...
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Turning and Mechanical Manipulation: Intended as a Work of General ..., Volume 1

Charles Holtzapffel - Industrial arts - 1846
...or scraping are less imperative, as any greasy or combustible matters are burned away, and the borax has the property of combining with nearly all the metallic oxides and earthy bases, thereby cleansing the edges of the metals should that proceeding have been previously...
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The Practical Metal-worker's Assistant ...: With the Application of the Art ...

James Napier - Electrometallurgy - 1864 - 646 pages
...or scraping arc less imperative, as any greasy or combustible matters are burned away, and the borax has the property of combining with nearly all the metallic oxides and earthy bases, thereby cleansing the edges of the metals should that proceeding have been previously...
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The Practical Metal-workers' Assistant: ...: With the Application of the Art ...

Oliver Byrne - Metal-work - 1874 - 683 pages
...or scraping are less imperative, as any greasy or combustible matters are burned away, and the borax has the property of combining with nearly all the metallic oxides and earthy bases, thereby cleansing the edges of the metals should that proceeding have been previously...
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The Practical Metal-worker's Assistant: Comprising Metallurgic Chemistry ...

Oliver Byrne, John Percy, Adolph A. Fesquet - Electroplating - 1878 - 683 pages
...or scraping are less imperative, as any greasy or combustible matters are burned away, and the borax has the property of combining with nearly all the metallic oxides and earthy bases, thereby cleansing the edges of the metals should that proceeding have been previously...
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