Convertible retractible sponge mop

Claim 1

IN A FLOOR MOP OF THE CLASS DESCRIBED, A TRANSVERSELY ELONGATED SYNTHETIC SPONGE ADAPTED TO REST ON THE FLOOR DURING WET MOPPING OPERATIONS, A BAR EXTENDING LONGITUDINALLY WITHIN SAID SPONGE AND HAVING A SHANK EXTENDING UPWARDLY THROUGH THE SPONGE, A HANDLE SECURED TO SAID SHANK AND EXTENDING UPWARDLY FOR MANIPULATION OF THE SPONGE IN FLOOR MOPPING ACTION BY A STANDING OPERATOR, A HEAD CARRIED BY SAID HANDLE AND HAVING SPACED WALLS ENGAGING OPPOSITE PORTIONS OF SAID SPONGE AND SUPPORTING THE SAME RIGIDLY DURING MOPPING ACTION, MEANS TO EXTEND SAID HEAD UPON SAID HANDLE TO THEREBY DRAW SAID SPONGE UPWARDLY BETWEEN SAID SPACED WALLS TO WRING THE SPONGE, AND UNEXPOSED ABUTMENT MEANS BETWEEN SAID HEAD AND SAID HANDLE TO MAINTAIN SAID SPACED WALLS IN SUPPORT OF SAID SPONGE DURING MOPPING ACTION.