| 摘要 |
<p>The invention provides a fastener assembly for fastening railway rails (12) to a railway sleeper (14), in which deformable clip means (28 or 60 or 72), such as a VOSSLOH clip or a NABLA clip (28 or 60 or 62 or 76) and a force applying means (10 or 50,52), such as a screw (10) or a nut and bolt (50,52), clamp the rail (12) to the sleeper (14). To prevent over tightening of the force applying means (10, 50,52), a ratcheting tooth (34, 34a or 80) is provided which engages with the head (16) of the screw (10) or with the nut (50,52) to limit the torque applied to the screw (10) or nut (50,52) and so prevent thread damage. The ratcheting tooth (34, 34a or 80) is located in an aperture (24 or 69) in a baseplate (22 or 72 or 74 or 76) with which the clip means (28 or 60 or 76) co-operates. <IMAGE></p> |
