| 摘要 |
PCT No. PCT/GB84/00154 Sec. 371 Date Jan. 3, 1985 Sec. 102(e) Date Jan. 3, 1985 PCT Filed May 8, 1984 PCT Pub. No. WO84/04370 PCT Pub. Date Nov. 8, 1984.A chain comprises interconnected links with each link comprising opposed C-shaped ends joined by joining limb portions. Each C-shaped end includes a central crown with shoulders on either side of the crown, and by the present invention the section modulus about an axis perpendicular to the plane of the link of a cross-section at a shoulder is greater than the corresponding section modulus of a cross-section at the crown, and preferably additionally said section modulus of the section at the shoulder is greater than a corresponding section modulus of a cross-section at the associated joining limb portion. |
