Hingeing attachment

A hinge mechanism comprising first and second members, said first member being in the form of a bracket defined by a lateral limb and an upstanding limb integral therewith and defining a recess at the intersection between said limbs, the upstanding limb presenting a curved surface above said recess, said second member being movable with respect to said first member and having a projecting flange with a rounded extremity dimensioned complimentarily to seat within the recess and a web located rearwardly of said extremity and dimensioned to cooperate with the curved surface of said first member, said first and second members cooperating with one another in such manner that upon relative opening movement of said hinge members the second member has part of its movement guided by engagement of the flange extremity in the recess and a further part of its movement guided by engagement of the flange web on the curved surface of the upstanding limb of the first member.