Page 513 - My FlipBook

Fig. 316. A box-wood block in which cardboard haa been implanted; those on the left by the
thrust dynainometer and those on the right by the falling wcnghts. The measurements of the dianielcr
in millimeters and the stress in ixninds in imidanliiig each one is as follows, reading- each side from
the top downward: 2.5 mm. 250 lbs., 2 mm. 100 lbs., 1.5 mm. 90 lbs., 1.25 mm. 62.5 lbs., 1 mm.
40 lbs., .75 mm. 22.5 lbs., .5 mm. 10 lbs.
Fin. ."^I?. An ciihirj-:!!! pirtun- uf Kigure :i^^\.