A bit late to this thread, which is interesting and informative (especially the pics) - thank you.
A while ago you posted:
I have a few window hinges cut like that and believe it's done that way to prevent any risk of binding between the stile and frame e.g. misaligned/poorly fitted screws being proud of the frame hinge face clashing with screw heads/accumulated paint on the other leaf of the hinge.
A while ago you posted:
Mcluma":1idn7tsd said:
I have a few window hinges cut like that and believe it's done that way to prevent any risk of binding between the stile and frame e.g. misaligned/poorly fitted screws being proud of the frame hinge face clashing with screw heads/accumulated paint on the other leaf of the hinge.