| 摘要 |
This relates to couplings for pipes, especially boring pipes, where there is a requirement for a coupling which can be easily released yet provides for one pipe to be locked so as not to be able to rotate with respect to the other and also where the coupling is provided with a sealed joint, the coupling is made by intermeshing teeth or cogs on the ends of the pipes, the teeth being trapezoidally shaped so as to provide improved locking between the adjacent pipes; annular sealing rings may be provided on the inside of the teeth, the rings may have a seal between each other or between a ring and next of the adjacent pipe; an annular fastening ring is provided to fit in a recess formed circumferentially around the teeth. |
