that tests should be made, in order, if possible, to succeed in stress. As the points of suspension and jointing are in a have the free faces as a base and a quarter of the unifying the methods employed, and in obtaining con- line with the axis of the screw, the stress is transmitted cordant… … posed to be transparent in order to allow the details of age occurs shows the defects of the test pieces in homo- Fig. 2. DETAILS OF THE DYNAMOMETER. the parts to be seen, is provided with a needle, a, whose geneousness when they exhibit dissymetrical break- axis carries a toothed wheel, and which…
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