method and apparatus for moving, and apparatus adapted for moving an elongate member along a predetermined axis, and method for constructing a naval vessel

摘要

A method of moving an elongate member (12) along a predetermined axis (A-A) for the introduction or withdrawal thereof to or from a free body (11). The method includes providing an elongate guide surface (18) extending parallel to the predetermined axis, and also providing a plurality of support elements (26) which are slidable on the support surface in a direction parallel to the predetermined axis. The elongate member is supported on the support elements so that at least a major portion of the mass is supported. The elongate member and the support elements are moved along the predetermined axis. Apparatus for moving an elongate member in this manner is also provided.