Deformable tie clip for roofing

Claim 1

A ROOF STRUCTURE AND THE LIKE COMPRISING THE COMBINATION WITH A ROOF SUPPORTING STRUCTURE OF A SERIES OF SHEET METAL PANELS ADAPTED TO EXTEND PARALLEL TO THE ROOF EDGE AND EACH FORMED WITH A DOWNTURNED, INWARDLY FACING HOOK OF SINUOUS CONFIGURATION ALONG ITS LOWER MARGIN AND AN UPTURNED, INWARDLY FACING HOOK OF SINUOUS CONFIGURATION ALONG ITS UPPER MARGIN, INTERLOCKED WITH SAID FIRST HOOK OF AN ADJACENT PANEL THROUGH WHICH HOOKS THE ADJACENT PANELS ARE INTERLOCKED WITH ONE ANOTHER, A SERIES OF LONGITUDINALLY EXTENDING METALLIC PURLINS FIXED AT PANEL WIDTH INTERVALS TO THE SUPPORTING STRUCTURE, EACH PURLIN HAVING A BASE PORTION WHICH DIRECTLY SUPPORTS THE UPPER MARGIN OF ONE OF SAID PANELS, AND AN UPSTANDING FLANGE AT ITS UPPER EXTREMITY IN PROXIMITY TO THE UPPER EXTREMITY OF THE PANEL WHOSE UPPER MARGIN ITS SUPPORTS, AND STIFF BUT PERMANENTLY DEFORMABLE SHEET METAL CLIPS TYING THE UPPER MARGIN OF EACH PANEL TO THE PURLIN UPON WHICH IT IS SUPPORTED WHILE LEAVING THE MOUTH OF THE PANEL HOOK AT SUCH MARGIN SUBSTANTIALLY UNOBSTRUCTED, THE CLIPS CONSTITUTING THE SOLE MEANS OF POSITIVE ATTACHMENT BETWEEN THE PURLIN AND THE PANEL MARGIN, EACH CLIP BEING PARTIALLY SANDWICHED BETWEEN THE INTERLOCKED HOOKS OF THE PANELS AND EXTENDING FROM WITHIN THE HOOK DISPOSED AT THE UPPER MARGIN OF THE SUPPORTED PANEL, AROUND THE UPPER EXTREMITY OF THE PANEL DEFINED BY THE UPPER SIDE OF SUCH HOOK, THENCE DOWN AROUND THE OUTER FACE OF THE FLANGE OF THE SUPPORTING PURLIN AND FINALLY UNDERNEATH SAID PURLIN FOR A SUBSTANTIAL DISTANCE, THE CLIP, THROUGH DEFORMABLE, BEING STRONG ENOUGH TO MAINTAIN THE SHAPE AND THE POSITION DESCRIBED.