There are plenty of demos of it on You Tube. If you do it properly, the glue should come off in one piece. Personally, if I wanted to clean records on a budget, I would get a Spin-Clean. You also don't have to wait 8 hours to clean one side of a record.
Wood glue method of record cleaning
Anyone ever try it? Sounds interesting but I'm afraid of any residue left in the groove ripping the stylus off the cantilever.