Method of pressing the inside of a pipe during its construction. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the object of the main patent number 430.981, requested on october 14, 1974, by: "a method of pressurizing the inside of a pipe during its construction", according to which, to lay the pipeline in the sea during the construction of the same, the operations of suspension of the same are carried out, the operations of suspending a part of the pipe between a laying barge and a submerged lower surface on which the pipe is to be laid, put under pressure are carried out for applying a tension to said suspended part, and maintaining the pressure within the suspended part at a value large enough to communicate a minimum tension value to the suspended part. (Machine-translation by Google Translate, not legally binding)