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" A soft tough iron, if broken gradually, gives long silky fibres of leaden-gray hue, which twist together and cohere before breaking. A medium even grain with fibres denotes good iron. Badly refined iron gives a short blackish fibre on fracture. A very... "
BUYERS' GUIDE TO MERCHANDISE - Seite 177
1873
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The gas & water engineer's book of reference, Band 104

George Bower - 1880
...blow of a hammer into the cast iron, if poor, it will crush under the blow. — Scientific American. A soft tough iron, if broken gradually, gives long...fine grain denotes hard steely iron, likely to be cold, short, and hard. Coarse grain with bright crystallized fracture or discoloured spots denotes...
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Railroad Engineers' Field-book and Explorers' Guide: Especially Adapted to ...

H. C. Godwin - 1890 - 358 Seiten
...blow. Tests of Iron. — A soft tough iron, if broken gradually, gives long silky fibres of leaden-gray hue, which twist together and cohere before breaking....medium even grain with fibres denotes good iron. Badly refitted iron gives a short blackish fibre on fracture. A very fine grain denotes hard steely iron,...
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Railroad Engineers' Field-book and Explorers' Guide: Especially Adapted to ...

Henry Colthurst Godwin - 1894 - 358 Seiten
...by a blow of a hammer into the cast-iron; if poor, it will crush under the blow. Tests of Iron. — A soft tough iron, if broken gradually, gives long silky fibres of leaden-gray hue, which twist together and cohere before breaking. A medinm even grain with fibres denotes...
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Spon's Architects' and Builders' Price-book with Useful Memoranda and Tables

E. Spon - 1896 - 416 Seiten
...XÍ X4 Rise of tie-rod = — • Thick lines in compression, fine linea in tension. TESTS OF IBÓN. A soft, tough iron, if broken gradually, gives long...A medium even grain with fibres denotes good iron. Badly-refined iron gives a short blackish fibre on fracture. A very fine grain denotes hard steely...
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Inspection of the Materials and Workmanship Employed in Construction: A ...

Austin Thomas Byrne - 1898 - 539 Seiten
...close, silky fibres. Good iron is readily heated, is soft under the hammer, and throws out few sparks. A soft, tough iron, if broken gradually gives long, silky fibres of leaden-gray hue, which twist together and cohere before breaking, broken rapidly the fracture will...
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Railroad Engineers' Field-book and Explorers' Guide: Especially Adapted to ...

Henry Colthurst Godwin - 1902 - 357 Seiten
...blow. Tests of Iron. — A soft tough iron, if broken gradually, gives long silky fibres of leaden-gray hue, which twist together and cohere before breaking....Coarse grain with bright crystallized fracture or discolored spots denotes cold-short, brittle iron, which works easily when heated and welds well. Cracks...
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Inspection of the Materials and Workmanship Employed in Construction: A ...

Austin Thomas Byrne - 1910
...close, silky fibres. Good iron is readily heated, is soft under the hammer, and throws out few sparks. A soft, tough iron, if broken gradually gives long, silky fibres of leaden-gray hue, which twist together and cohere before breaking, broken rapidly the fracture will...
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