Duncan, J. (John), d. 1941 · London, MacMillan and co., limited · leaf 323
FIG. 324.—Wedge grips. FIG. 325.—Spherical seatedscrewed grip. FIG. 326.—Grip for brittle materials. end of the specimen A screwed into a holder B (Fig. 325); theholder has a nut C resting in a spherical seat formed in D, andpermits of better alignment of the specimen in the machine than ispossible…
Mechanics
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