| 摘要 |
<p>An expansion coupling (1) for joining together two components (not shown) in a gutter system comprises two portions (2, 3) joined together in a slidable sealing relationship, each portion (2, 3) being adapted to be connected rigidly and sealingly to a respective component of the system. The coupling (1) may either be adapted to join one gutter to an adjacent gutter in which case both portions are provided with sockets (8) for receiving the ends of respective gutters, or alternatively one of the portions (3) may include a free end in the configuration of a gutter for connection to another component of the system.</p> |
