Band type coupling for flanged pipe

Claim 1

A PIPE COUPLING ASSEMBLY COMPRISING IN COMBINATION TWO PIPES PROVIDED WITH OPPOSED FLANGES IN ABUTMENT WITH A GASKET INTERPOSED THEREBETWEEN, EACH FLANGE HAVING POSITIONED THEREAGAINST ON THE SIDE OPPOSITE SAID GASKET, A SPLIT METAL RING MADE UP OF LENGTHS OF A FIRST AND A SECOND WIRE FORMED CIRCULARLY TO EXTEND AROUND THE ENTIRE CIRCUMFERENCE OF EACH OF SAID PIPES ADJACENT SAID FLANGES, SAID FIRST WIRE BEING OF SMALLER DIAMETER THAN SAID SECOND WIRE AND FORMED TO A LARGER CIRCUMFERENCE THAN SAID SECOND WIRE, SAID SECOND WIRE BEING ADAPTED TO ABUT ADJACENT THE FILLET JOINDER BETWEEN SAID FLANGES AND THE CYLINDRICAL RUNS OF SAID PIPES, AND SAID FIRST WIRE AND SAID SECOND WIRE BEING JOINED ONE TO ANOTHER SO AS TO PRESENT EXTREME BOUNDARIES DISPOSED AGAINST SAID FLANGES IN SUBSTANTIALLY A COMMON PLANE RADIAL OF SAID PIPES WHILE PRESENTING ON THE SIDE OPPOSITE SAID FLANGES A COMMON TANGENT INCLINED OUTWARD RADIALLY OF SAID PIPES TOWARD SAID FLANGES, A CLAMP ADAPTED TO ENCIRCLE SAID FLANGES HAVING INTERIOR SURFACES CONFORMING APPROXIMATELY TO EACH SAID COMMON TANGENT, AND MEANS TO DRAW SAID CLAMP TIGHT CIRCUMFERENTIALLY IN ABUTMENT WITH SAID FIRST WIRE AND SAID SECOND WIRE OF EACH OF SAID METAL RING AT POINTS LYING ON SAID COMMON TANGENT.