| 摘要 |
1478308 End fittings C C L SYSTEMS Ltd 23 Aug 1974 [23 Aug 1973] 39936/73 Heading D1T [Also in Division E2] In a wedging gripper for the stranded tendons of prestressed concrete, in which each gripping collet lies in a tapered bore 3 terminating in a cylindrical portion 4, the end 7 of the collet extends into the cylindrical portion so that lateral force produced by oblique tension on the tendon bends the portion down to make a smoothly flaired exit guide surface. The collet may be internally serrated at 6. |
