Selectable extension stop for a polycentric hinge

A removable extension stop for limiting forward pivotal movement of a pair of arms connected by a polycentric hinge, said polycentric hinge being of the type including a pair of parallel spaced-apart face plates wherein the arms are pivotally secured at mating ends between the face plates at spaced-apart pivotal connections, said hinge having opposing front and rear edges, said mating ends of the arms having intermeshing gear teeth so as to cause simultaneous pivotal movement of the arms about their pivotal connections with the plates, and said mating ends of the arms having a pair of flanges adjacent the front edge of the hinge to limit the forward pivotal movement of the arms when the flanges engage the extension stop, said extension stop comprising a C-shaped body having:

• a clip means at one end of the body positionable adjacent the rear edge of the hinge for releasably securing the body to the hinge,
• an extension block at the opposing end of the body positionable adjacent the front edge of the hinge,
• and a connecting member extending between the clip means and extension block,
• said extension block being positionable between the mating ends of the arms to engage the flanges and limit the forward pivotal movement of the arms toward the front edge of the hinge, and wherein said extension block has a front edge positionable adjacent the front of the hinge and a pair of diverging top and bottom edges extending from the front edge and angled outwardly toward the rear of the hinge such that the flanges cause a rearward pressure on the top and bottom edges of the block to secure the block in position on the hinge.