Protective layer on slope of moles and breakwaters

Claim 1

A PROTECTIVE LAYER FOR THE SLOPE OF A MOLE, BREAKWATER OR THE LIKE COMPRISING A PLURALITY OF BLOCKS ARRANGED IN INCLINED ROWS AND HORIZONTAL ROWS ON A SLOPE, EACH OF SAID BLOCKS HAVING A TOP SURFACE, A BOTTOM SURFACE LYING AGAINST SAID SLOPE IN AN INCLINED PLANE COMMON TO OTHER OF SAID BLOCKS, A PAIR OF LATERALLY FACING SIDES, AN UPWARDLY FACING SIDE AND A DOWNWARDLY FACING SIDE, SAID TOP SURFACE OF EACH BLOCK LYING IN A PLANE WHICH INTERSECTS AT AN ACUTE ANGLE THE INCLINED PLANE IN WHICH SAID BOTTOM SURFACE LIES SO THAT AN EDGE DEFINED BY SAID TOP SURFACE AND SAID DOWNWARDLY FACING SIDE IS A GREATER DISTANCE FROM SAID SLOPE THAN AN EDGE DEFINED BY SAID TOP SURFACE AND SAID UPWARDLY FACING SIDE, SAID FIRST NAMED EDGE OF EACH BLOCK IN ADJACENT ONES OF SAID HORIZONTAL ROWA BEING VERTICALLY DISPOSED ABOVE AND WITH ITS DOWNWARDLY FACING SIDE OVERHANGING THE TTOP SURFACE OF A BLOCK IN THE HORIZONTAL ROW NEXT BELOW, EACH OF SAID BLOCKS HAVING INTERLOCKING MEANS PROVIDED ON SAID UPWARDLY FACING AND DOWNWARDLY FACING SIDES THEREOF, SAID MEANS OF THE BLOCK OF ADJACENT ONE OF SAID HORIZONTAL ROWS BEING INTERLOCKED TO PREVENT THE BLOCKS FROM MOVING IN A DIRECTION AWAY FROM SAID SLOPE UNDER THE FORCE OF WAVES, AND EACH BLOCK HAVING A PASSAGEWAY EXTENDING THERETHROUGH FROM ITS BOTTOM TO ITS TTOP SURFACE FOR REDUCING PRESSURE AND SUCTION FORCES TO WHICH SAID LAYER IS SUBJECTED DUE TO MOVEMENT OF WAVES THEREON.