Highway guard fence

Claim 1

A PROTECTIVE BARRIER FOR ROAD SHOULDERS AND MEDIANS TO PREVENT MOTOR VEHICLES FROM LEAVING THE ROAD AND TO GUDE THEM BACK INTO THE ORIGINAL DIRECTION OF TRAVEL, COMPRISING A SUCCESSION OF ADJACENT BARRIER SECTIONS, EACH SECTION INCLUDING (1) TWO VERTICAL END SUPPORTS DELIMITING EACH SECTION AND BEING SPACED APART BY MORE THAN TWO MOTOR VEHICLE LENGTHS, THE VERTICAL AXES OF THE END SUPPORTS DEFINING A PLANE OF SYMMETRY FOR SAID BARRIER, SAID PLANE OF SYMMETRY EXTENDING SUBSTANTIALLY PARALLEL TO THE ROAD; (2) A PLURALITY OF CABLES IN THE FORM OF CONTINUOUS LOOPS MOUNTED IN TENSIONED CONDITION BETWEEN THE END SUPPORTS; (3) A PAIR OF SHEAVES HAVING GROOVES HOLDING AND GUIDING EACH OF SAID CABLES, THE SHEAVES BEING MOUNTED ON THE END SUPPORTS AND FREELY ROTATABLE ABOUT THE VERTICAL AXES THEREOF, EACH OF THE PLURALITY OF CABLES OF ONE OF SAID BARRIER SECTIONS BEING VERTICALLY DISPLACED FROM A CORRESPONDING ONE OF THE CABLES OF THE ADJACENT BARRIER SECTION, THE CORRESPONDING CABLES OF THE SUCCESSION OF BARRIER SECTIONS FORMING A CONTINUOUS LINE, A LIKE PLURALITY OF PAIRS OF VERTICALLY DISPLACED ONES OF SAID SHEAVES BEING MOUNTED ON EACH END SUPPORT, EACH PAIR OF SAID VERTICALLY DISPLACED SHEAVES HOLDING AND GUIDING THE CORRESPONDING CABLES OF ADJACENT ONES OF SAID BARRIER SECTIONS, ONE OF SAID CORRESPONDING CABLES EXTENDING INTO ONE OF THE ADJACENT BARRIER SECTIONS AND THE OTHER ONE OF THE CORRESPONDING CABLES EXTENDING INTO THE OTHER ONE OF THE ADJACENT BARRIER SECTIONS; AND (4) ELASTIC MEANS ARRANGED TO FACE THE ROAD AND TO PROTECT THE END SUPPORTS AND THE SHEAVES FROM DIRECT CONTACT WITH AN ONCOMING MOTOR VEHCLE; (5) THE CABLE LOOPS, THE SHEAVES AND THE ELASTIC MEANS BEING ARRANGED SYMMETRICALLY IN RESPECT OF SAID PLANE OF SYMMETRY.