Removable form for concrete jacket

Claim 1

A FORM FOR A CONCRETE JACKET OF A COMPOSITE PILE COMPRISING AN ELONGATED HOLLOW CYLINDRICAL BODY WITH FLANGES EXTENDING THE LENGTH OF THE LONG EDGES THEREOF, ELONGATED CLAMPING BAR MEMBERS EXTENDING THE LENGTH OF THE FLANGES AND IN ENGAGEMENT THEREWITH, SAID CLAMPING BAR MEMBERS HAVING TAPERING OUTER EDGES, A PLURALITY OF BIFURCATED LUGS CARRIED IN LONGITUDINALLY SPACED RELATIONSHIP BY SAID CLAMPING BAR MEMBERS, THE BIFURCATIONS OF SAID LUGS HAVING TAPERED INNER EDGES CONTINUING INTO STRAIGHT INNER EDGES, SAID STRAIGHT INNER EDGES ADAPTED TO INTERLOCK WITH THE OUTER EDGES OF THE FLANGES, AND CLAMPING RINGS REMOVABLY AND SLIDABLY MOUNTED ON THE TAPERING EDGES OF THE BAR MEMBERS TO CLAMP THE BAR MEMBERS ONTO THE FLANGES.