| 摘要 |
The pipe coupling has one member (1) with a forward-facing spherical section and a rear-facing one (3) on opposite sides of a transverse plane through the member, these sections being concentric and ring-shaped. A collar (5) fits round the member, having mating internal faces working against the spherical ones, and is accommodated with the member in a socket (10), being held in place by locking devices (12). The collar slides into position in the socket, and the member can tilt in it. |
