So on a Williams machine, the CP flips down. At the back of the CP is a plastic strip that looks like a Y (see crappy ASCII drawing below) that sits between the glass and the CP and holds down the edge of the CPO.
Some 3/4" plastic channel and a heat gun would probably achieve the same effect, but does anyone know what this piece is called and if I can get one similar to the Williams piece on my upright?
Drawing
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