F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 47/02 (2006.01) B23B 5/16 (2006.01) B29C 70/82 (2006.01) B29D 23/00 (2006.01) B29C 67/18 (1990.01)
Patent
CA 2133828
2133828 9321005 PCTABS00027 Apparatus for making a pipe-fitting, of the kind used to sealably connect the ends of plastic pipes, such as gas pipes, comprises head portion (14) and a support arm (15) the head portion (14) having a cutter (16) arranged to cut a helical groove in an inside bore-surface of a plastic pipe-fitting (not shown). As the cutter (16) cuts the groove copper wire (not shown) is supplied through the cutter (16) via guide pulleys (17 and 18), which wire is laid in the freshly cut groove. THe wire is then enclosed in the groove by urging displaced surface material from one side of the groove to the opposite side of the groove at least partially by the action of a friction surface (19) on the displaced material.
Cawrey Paul
Jones Gary
Hill 27 S.a.
Johnson Ernest Peter
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