| 摘要 |
Apparatus for jointing together by socket fusion two plastics pipe lengths, or one plastics pipe length and a plastics fitting comprises a frame; first and second ring clamps each slidably mounted on said frame so as to be movable towards or away from one another; means to effect movement of said clamps relatively towards and away from one another; said first clamp being dimensioned to clamp one end of a first pipe length and squeeze said end into a circular shape; said second clamp being dimensioned to clamp a fitting, or a socket end of a second spigot and socket pipe length, and said second clamp including a plurality of arcuate bearing shoes each operable on by one of a plurality of screw adjusters carried by said second clamp, said bearing shoes together being adapted to make circumferential contact over substantially the whole of the periphery of said fitting or said socket end, said screw adjusters being adjustable to cause axial alignment of said fitting with respect to said end of said first pipe length, or of said socket end with respect to said end of said first pipe length; and a heating means for bringing surfaces to be fused together to fusion temperature.
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