| 摘要 |
A pipe joint comprising a plastic lined conduit having a synthetic resinous pressure deformable liner disposed with a pressure deformable metal conduit, said plastic lined conduit having at least one end defining a radially outwardly projecting flange of the metal conduit and the plastic liner, a loose ring having a generally planar face and a tapered face, the loose ring being disposed about the conduit with the generally planar face of the ring disposed against the outwardly projecting metal flange, the loose ring having the tapered face remote from the radially outwardly projecting flange and tapering outwardly toward a periphery of the flange, a split "V" clamp disposed about the loose ring, said clamp having an opposed tapering surface of generally like configuration to the tapering face of the loose ring, said clamp thereby forcing the plastic liner flange against an opposed liner flange, said loose rings having a face remote from the tapering face defining at least one land and one groove, the land and groove being of generally arcuate configuration and having a center of generation at the center of the ring, the groove subtending a greater angle with the center of generation than the land, the land adapted to interfit with a groove of a like ring and thereby center adjacent pipe ends. |
