| 摘要 |
A wirelaying apparatus and method using a tool ( 30 ) having a cutter/cutting tip ( 31 ) operatively opening a cut in the interior bore surface ( 11 ) of a cylindrical pipe fitting ( 10 ), laying wire ( 12 ) into the cut and closing the cut using a flange closer ( 33 ). The wire ( 12 ) is delivered into the cut via an aperture ( 32 ) through the cutting tip ( 31 ). Delivery of the wire ( 12 ) into the cut is thereby improved, overcoming the problem of wire running free within the fitting. In a second embodiment (see FIG. 12 ) the cutter ( 31 ) is rotatably mounted allowing a double helical coil to be formed without removing the cutter from the bore surface.
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