When you say sliding hooks, you mean from side to side or they slide around the axle? Do they need to do this independently of each other? What exactly is the determination of when they need to slide and how much (the tension?)
I'm sure you understand exactly how this works, but to someone unfamiliar with the process you are going to have to explain it like you are talking to a toddler. lol
Once we understand what exactly you are attempting, we can help. I need to know 3 main things:
- What determines when a hook needs to slide, and what do they do when the determination is made?
- Are the hooks expected to move independently of each other?
- Are we sliding side to side along the shaft or rotating around the shaft?