| 摘要 |
A pipe coupling for plain-end pipes, e.g., of fired clayware, comprises a pair of sleeves of resilient plastics material with cylindrical portions for securing on the pipe-ends and generally cylindrical joint forming portions adapted to extend beyond the pipe-ends, the joint forming portion of at least one of the sleeves, but preferably of each of the sleeves, being connected to its securing portion by an annular portion for abutting a pipe-end, and sealing means, such as mating tapers, a sealing lip, or a sealing ring, being provided between the joint forming portions, whereby the securing portions can yield to the profiles and diameters of the respective pipe-ends to which they are applied, while the joint forming portions substantially retain their generally cylindrical shapes, so that little tolerance need be allowed for in the sealing means. |
