Discussion on "The manufacture of gold-filled spectacle frames" at the Coventry Section of the Institution

MR. DRANE: I take it the ingot is just as the wire is drawn from the blank and put on a milling machine ; you just slit it down and that makes the eye pieces. When that comes off is not it a small helix, and do you have a process for flattening them, or when they are slotted is that sufficient to keep them in the form of a spring ? MR. SMITH: It doesn´t make any difference. If you look at a frame you will see the joints are angled ; you bring them together and they stop there.