{HEAD ~ A carpet stretcher} 10, wherein {TAIL ~ said pair} of L shaped members are adjustable to allow adjustment of the gradual release of the prong members 
wherein
{ HEAD ~ A carpet stretcher } 10 , wherein { TAIL ~ said pair } of L shaped members are adjustable to allow adjustment of the gradual release of the prong members
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH