Thanks for replying. So are all glasses that have front mounted rivets barrel hinged? Do barrel hinges function similar to a door hinge, in that they have a limited range of motion? Am I correct in assuming that rivets and the extra piece of metal hinge joining the frame and arms would not work on spring hinges? They wouldn't be able to flex, right? Is one construction better than the other, or are certain methods better suited for different purposes?
6/10/16 at 11:35am