APPARATUS AND METHODS OF PRODUCING A DEFORMED PIPE

摘要

Apparatus for and a method of deforming a pipe comprises a wedge-like elongate member arranged in use to lie alongside a path of movement of the pipe to be deformed, and project increasingly into the pipe as the pipe moves past it in the forward direction of its path; and pipe constraint means disposed about the path of travel of the pipe in association with the wedge member whereby in use a pipe to be deformed in its path of travel is engaged progressively increasingly by the wedge-like member whereby to indent progressively a part of the wall of the pipe such as to deform the pipe longitudinally.