초록 ▼

A device for engaging an elongate article, such as a pipe or cable, for displacing the article longitudinally, comprises a tubular body formed of a plurality of longitudinal parts arranged to be opened apart and then closed together around the elongate article, and at least one collar formed of a pl

A device for engaging an elongate article, such as a pipe or cable, for displacing the article longitudinally, comprises a tubular body formed of a plurality of longitudinal parts arranged to be opened apart and then closed together around the elongate article, and at least one collar formed of a plurality of parts carried by respective parts of the tubular body. The collar has a radially inner surface to form an interference engagement with the outer surface of the article, and a radially outer surface to engage the inner surface of the tubular body. The outer surface of the collar and/or the inner surface of the tubular body is tapered towards the trailing end of the device.

대표청구항 ▼

1. A device for engaging a pipe, cable or other elongate article to displace said article longitudinally, the device comprising a tubular body having a straight passage therethrough from end-to-end, the tubular body being formed of a plurality of longitudinal parts extending from end-to-end thereof

1. A device for engaging a pipe, cable or other elongate article to displace said article longitudinally, the device comprising a tubular body having a straight passage therethrough from end-to-end, the tubular body being formed of a plurality of longitudinal parts extending from end-to-end thereof and arranged to be opened apart and then closed together around the elongate article to be displaced, and at least one gripping collar positioned within the tubular body and formed of a plurality of parts carried by respective parts of the tubular body, the gripping collar having a radially inner surface arranged to form an interference engagement with the outer surface of the article to be displaced, and a radially outer surface arranged to engage the inner surface of the tubular body, at least the outer surface of the gripping collar or the inner surface of the tubular body being tapered towards a trailing end of the device.