| 摘要 |
1340192 Pipe joints MARLEY TILE CO Ltd 19 April 1971 [20 April 1970] 18792/70 Heading F2G A plastics pipe 1 has a socket 2 to receive the end of an adjacent pipe, a sealing ring 10 seating on a shoulder 4 in the socket to be retained by snapping an extension ring 7 into the enlarged socket mouth 5, 6. As shown, a V-sectioned ridge 8 around the extension ring 7 snaps into a groove 5 in the socket mouth and a flange 9 around the ring abuts the socket end. Alternatively, the positions of the ridge 8 and groove 5 may be interchanged. Reference is made to Specification 1,183,881. |
