Experimental engineering and manual for testing. For engineers and for students in engineering laboratories (1906)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & Sons; [etc., etc.] · leaf 160
ters depends on— 1. The accuracy of the micrometer-screws. 2. The screws to be compensating must be two in number,in the same plane, and at equal distances from the axis of thespecimen. 3. The framework and clamping device must hold the mi-crometers rigidly in place, and yet not interfere with the… … Fig. 73.—Johnsons Exten-someter. no EXPERIMENTAL ENGINEERING^ [§83- Thurston Extensometer, but the clamps which are attached tothe specimen are heavier, and are made so that they are heldfirmly in position by springs up to the instant of rupture.This extensometer is furnished with links connecting…
Building materials · Machinery
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