| 摘要 |
<p>A rappel line clamp (12) consists of two parallel hinged plates (36, 38) whose facing surfaces show matching grooves (56, 58) for the accommodation of the line (98) and the pressure is exerted through the tension on a thumbscrew (88) which holds the plates (36, 38) together. One of the plates has a flange (74) on its outer surface which has an upwardly opening notch (16) into which the line (98) can be placed for additional breaking effect.</p> |
