One-piece molded sole for welt shoes

Claim 1

IN A SHOE HAVING AN OUTSOLE, AN UPPER AND A WELT FOR SECURING THE OUTSOLE TO THE UPPER, SAID WELT HAVING UPPER AND LOWER SURFACES, AN INTURNED LOWER MARGIN ON SAID UPPER ATTACHED TO THE UPPER SURFACE ON THE WELT, SAID OUTSOLE COMPRISING A ONE-PIECE BODY OF FLEXIBLE MATERIAL HAVING A FORE PART, A SHANK AND A HEEL, AT LEAST THE FORE PART OF SAID OUTSOLE BEING PROVIDED WITH A PERIPHERAL PORTION AND A CENTRAL PROMINENCE LYING WITHIN SAID PERIPHERAL PORTION AND COEXTENSIVE THEREWITH AND CONSTITUTING A DOWNWARDLY OPENING CAVITY, SAID PERIPHERAL PORTION AND CENTRAL PROMINENCE EACH HAVING UPPER AND LOWER SURFACES, THE LOWER SURFACE OF THE WELT BEING ATTACHED TO THE UPPER SURFACE OF THE PERIPHERAL PORTION, THE DISTANCE BETWEEN THE UPPER SURFACE OF SAID CENTRAL PROMINENCE AND THE UPPER SURFACE OF SAID PERIPHERAL PORTION BEING SUBSTANTIALLY EQUAL TO THE COMBINED THICKNESS OF THE WELT AND THE INTURNED MARGIN OF THE UPPER, AND A PLURALITY OF DOWNWARDLY EXTENDING PROJECTIONS LOCATED WITHIN SAID CAVITY AND SECURED TO THE LOWER SURFACE OF THE CENTRAL PROMINENCE FOR SUPPORTING THE SHOE ON THE GROUND.