Hale, Joseph W. L. (Joseph Woodwell Ledwidge), 1886- · New York [etc.] McGraw-Hill book company · leaf 230
). Nearly alltesting machines are built on the principle of a system STRENGTH OF MATERIALS 215 of levers and the methods are worked out in a mannerpractically similar to that just described. For bending tests of wood specimens a machine similarto that shown in Fig. 193 is used. The lever… … Fig. 194. Pieces to be tested in torsion are placed in a machinesimilar to that shown in Fig. 194. The specimen isfastened in grips (A) and (B). (B) is fastened to {M)which has an arm (C) attached to it. By means of thebelt shown at the left and the cone pulley and systemof gears, (A) can be…
Mechanics, Applied
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