Handbook for Machine Designers and Draftsmen

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McGraw-Hill book Company, 1913 - Machine design - 494 pages
 

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Page 350 - For the purposes of this specification the yield point shall be determined by the careful observation of the drop of the beam or halt in the gage of the testing machine: Sample for chemical analysis.
Page 349 - For other material the test specimen may be the same as for sheared plates, or it may be planed or turned parallel throughout its entire length, and in all cases where possible two opposite sides of the test specimen shall be the rolled surfaces.
Page 134 - Knots H, K, and M are easily untied after being under strain. The knot M is useful when the rope passes through an eye and is held by the knot, as it will not slip, and is easily untied after being strained.
Page 350 - The variation in cross-section or weight of more than 2\ per cent from that specified will be sufficient cause for rejection, except in the case of sheared plates, which will be covered by the following permissible variations...
Page 355 - ... plates, and must test hot and cold by driving down on an anvil with the head in a die ; by nicking and bending, by bending back on themselves cold, without developing cracks or flaws.
Page 197 - And on and after July first, eighteen hundred and ninety-three, the same and no other shall be used in determining duties and taxes levied by the United States of America on sheet and plate iron and steel.
Page 197 - Approximate Thickness In Fractions of an Inch Approximate Thickness In Decimal Parts of an Inch Weight per Square Foot In Ounces Avoirdupois Weight per Square Foot In Pounds Avoirdupois Number of...
Page 350 - Two cold bending specimens and two quenched bending specimens will be furnished from each melt of rivet rounds. The homogeneity test for fire-box steel shall be made on one of the broken tensile test specimens.
Page 350 - The specimen is broken al the other two grooves in the same way. The object of this treatment is to open and render visible to the eye any seams due to failure to weld up, or to foreign interposed matter, or cavities due to gas-bubbles in the ingot.
Page 349 - ... or less in thickness the test specimen shall be of the same thickness as that of the finished material from which it is cut, but for material more than three-fourths...

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