FASTENING APPARATUS AND METHOD.

摘要

A fastening apparatus adapted for use with an annular first article (76) and a second article (75) which locates within the first article (76) such that a first end of the second article (75) projects through and beyond a first end of the first article (76) and a second end of the first article (76) is located relative to the second article (75). The apparatus comprises a housing (50), a piston (58) movably situated within the housing (50) to allow at least one locating portion (62) of the piston (58) to be retained within the housing (50) or to project through a corresponding opening (61) in the housing (50), pressure means (69) provided within the housing (50) to act on the piston (58), and at least one fastening member (71) attached to the housing (50).