We've just started renovating this loom and, as you might imagine, have a few pieces of unknown use and are missing others. I've already figured out we put a few pieces on backwards.
This is a picture of the hardware that seems to go with the cloth beam. One of the pieces has a spring on it. Any clue? Also, we're newbies...could have it on upside down! P.S. My husband is not as exasperated as he looks!