Laying down of immersed pipes

Claim 1

A PROCESS FOR LAYING DOWN A MAIN HOLLOW STEEL PIPE TO BE USED AS PIPE-LINE ON AN IMMERSED BOTTOM FROM ONE SHORE LINE TO ANOTHER SHORE LINE, BY IMPARTING TO SAID PIPE A RESILIENT DEFORMATION ON A SECTION THEREOF COMPRISED BETWEEN THE BOTTOM AND THE VICINITY OF THE WATER SURFACE AND JOINING THE PIPE PORTION ALREADY LAID DOWN TO THE PIPE PORTION AWAITING TO BE LAID WHICH IS MAINTAINED AT THE VICINITY OF THE WATER SURFACE IN A POSITION SUBSTANTIALLY PARALLEL THERETO, SAID DEFORMATION BEING SUCH THAT SAID PIPE SECTION HAS AN INFLECTION POINT BETWEEN THE BOTTOM AND THE VICINITY OF THE WATER SURFACE AND AN UPPER BRANCH WITH A HORIZONTAL TERMINATION, SAID PROCESS CONSISTING IN ADJOINING TO SAID MAIN PIPE AT LEAST ONE COMPLEMENTARY PIPE STRETCHING ALL ALONG SAID MAIN PIPE AND ATTACHED THERETO BY A RIGID ASSEMBLY, IN FILLING SAID COMPLEMENTARY PIPE WITH A LIQUID FROM SAID ONE SHORE LINE DOWN TO A POINT AT A PREDETERMINED LEVEL ON SAID PIPE SECTION, IN EXERTING ON SIDE PIPES ASSEMBLY A TRACTION IN THE DIRECTION THEREOF AND TOWARDS SAID OTHER SHORE LINE, SAID TRACTION BEING APPLIED TO SAID PIPES ASSEMBLY AT SAID TERMINATION OF SAID PIPE SECTION UPPER BRANCH, IN SUBSTANTIALLY CONTINUOUSLY DISPLACING SAID TRACTION ALONG SAID PIPES ASSEMBLY IN THE DIRECTION EXTENDING FROM THE ONE SHORE LINE TO THE OTHER SHORE LINE, IN SIMULTANEOUSLY CONTROLLING THE LEVEL OF THE LIQUID FILLING IN SAID COMPLEMENTARY PIPE AND IN ADJUSTING THE VALUES OF SAID FILLING LEVEL AND TRACTION SO THAT THE PIPES ASSEMBLY IS KEPT SUBSTANTIALLY HORIZONTAL AT THE POINT WHERE SAID TRACTION IS APPLIED THERETO.