| 摘要 |
<p>The device (6) has a clamping nut i.e. locknut, supported on a base of a retainer under a recess (2') for accommodating a movable switch (3) or wheel track of a frog, where the device has a shape of a bolt. A screw-shaped threaded shaft of the bolt traverses a corresponding opening of a half-point- or crossing block, and co-operates with the clamping nut. A screw head of the bolt is translatively guided into a longitudinal groove of a profile part that lies in a carrier i.e. concrete sleeper (4).</p> |
