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" ... if it make a slight impression, denoting some degree of malleability, the iron is of a good quality, provided it be uniform; if fragments fly off, and no sensible indentation be made, the iron will be hard and brittle. "
Newton's London Journal of Arts and Sciences: Being Record of the Progress ... - Sida 274
redigerad av - 1822
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The Imperial magazine; or, Compendium of religious, moral ..., Volym 6

1824
...certain test of the quality of a piece of oast iron, is, to try its edge with a hammer: if the blow make a slight impression, denoting some degree of malleability, the iron is of a good quality, provided it be uniform ; if fragments fly off, and no sensible indentation be made, the iron will be...
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The London Journal of Arts and Sciences, Volym 4

1822
...fe, with a short tail. — Literary Gazette, VOL. iv. un New Umbrella. MR. RUSSEL, of Downing-street, has exhibited an improved umbrella and parasol, which...indentation, it is hard and brittle, and not to be relied Bronze Statue in Hyde Park. $75 on. In a large beam of iron it must be remembered, that different parts...
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The Wesleyan-Methodist Magazine

1823
...coolingtakes place slowly, the iron becomes much tougher than when it is cooled rapidly. Cast iron, too, ought always to be annealed. One of the best...qualities, depending upon their situation in the mould. SUSPENSION PIERS. CAPTAIN BROWN, the Architect of tie Suspension Iron Bridge over the Tweed, has applied...
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The Quarterly Journal, Volym 14

1823
...of its high importance. The best test of the quality of a piece of cast iron is to strike the edge with a hammer ; if it make a slight impression, denoting...malleability, the iron is of a good quality; but if fragments fly off, without any sensible indentation, the iron will be hard, brittle, and not to be...
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Glasgow Mechanics' Magazine, and Annals of Philosophy, Volym 3

1825
...test of the quality of a piece of cast-iron is to try the edge with a hammer: if the blow of a hammer make a slight impression, denoting some degree of malleability, the iron is of a good quality, provided it be uniform ; if fragments fly off, and no sensible indentation be made, the iron will be...
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An Elementary Course of Civil Engineering

Joseph Mathieu Sganzin - 1828 - 232 sidor
...test of the quality of cast iron, is to try the edge with a hammer ; if the blow of a hammer makes a slight impression, denoting some degree of malleability, the iron is of a good quality, provided the texture be uniform ; if fragments fly off and no sensible indentation be made, the iron...
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An Encyclopædia of Architecture: Historical, Theoretical, and Practical

Joseph Gwilt - 1842 - 1089 sidor
...most certain test of the goodness of a piece of cast iron is by striking the edge with a hammer, which if it make a slight impression, denoting some degree of malleability, the iron is of a good quality. It is important in any casting to have the metal as uniform as possible, and not of différent sorts,...
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Practical Essay on the Strength of Cast Iron and Other Metals ..., Del 1

Thomas Tredgold - 1842 - 504 sidor
...quality of a piece of cast iron, is to try any of its edges with a hammer ; if the blow of a hammer make a slight impression, denoting some degree of malleability, the iron is of a good quality, provided it be uniform : if fragments fly off, and no sensible indentation be made, the iron will be...
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Building Safe-guide

Charles Marcotte - 1878 - 136 sidor
...good test of the quality of Cast Iron is by striking the edge of a piece with a hammer ; if it makes a slight impression, denoting some degree of malleability, the iron is of a good quality, when uniform ; if fragments fly off, the iron is hard and brittle. Good iron breaks like a piece of...
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Mechanical engineering materials: their properties and treatment in construction

Edward Charles Robert Marks - 1906 - 98 sidor
...quality of a piece of iron is to try any of its edges with a hammer ; if the blow of a hammer makes a slight impression, denoting some degree of malleability, the iron is of good quality, provided it be uniform ; if fragments fly off, and no sensible indentation be made, the...
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