Abstract: Extraction apparatus 10 for tubes and like elongated articles comprises a tiltable gripping collar 64 of fixed internal dimension to engage and grip the article to be extracted. The collar has internal dimensions somewhat larger than those of the articles to be gripped, and is mounted so as to tilt when in use and to engage and grip the article as a result of this tilting action. The collar be used either as non-return means for the article being extracted, or may be used for applying the extraction level itself. A collar assembly is however preferably used to apply the extraction load separate and apart from the tilting collar. The collar jaws a axially spaced from the end of the tubular piston rod of the ram and connected to it by a collar head whereby the assembly is removable on a quick attach basis for servicing.

Abstract: The invention relates to gripping means for use in the withdrawal of tubular members such as heat exchanger tubes from support means.

Abstract: An elongated tubular member is withdrawn from a bore in a support member by ixing at a leading end of the tubular member a hollow adapter, inserting through the tubular member and the hollow adapter a rod having an overall length greater than the combined length of the tubular member and the adapter, securing said rod to the adapter at one end of the tubular member, securing a broach to the rod at the other end, pulling the tubular member by suitable gripping means to withdraw it from the bore and thereby drawing the broach through the bore to re-shape it.A suitable form of gripping means is also disclosed in the form of a hydraulically operated chuck.