either with large power equipment or with a manual jack application_number US 60350590 A description referring to the drawings the main body of the tube extractor of this invention comprises an outer sleeve 1 having a tapered frustum shaped bore which forms inner surface 2 the end of the sleeve corresponding to the wide end of the bore is provided with external threads 9 the exterior of sleeve 1 is equipped with a pair of rings 5 or the like for applying a pulling force to the device adapted to mate with the inner surface 2 of sleeve 1 are two or more externally tapered clamping jaws 3 inner surface 2 and the outer surfaces of jaws 3 should be substantially smooth to permit the respective components to engage one another as they slide together described further below the interior surfaces of the jaws are shaped and sized to correspond to the exterior surface of the cylindrical object to be gripped the jaws are spaced apart about the interior of sleeve 1 and loosely held in position by means of collar 4 the collar is internally threaded to mate with the threads 9 of sleeve 1 the collar is also preferably provided with lugs 6 to facilitate tightening of the mating threads with a wrench in a preferred embodiment of the invention four jaws each of which are dimensioned to grip slightly less than 90 u00b0 of the circumference of the cylindrical object are employed collectively the jaws contact a major portion of the outer surface of the cylindrical object surrounded by the sleeve the collar 4 is equipped with an interior lip.