quote:

Chris Abell - "Of course speaking of auto’s there are some that have different arrangements, one I had was a bumper based and had a over engineered system that as it wound a locking hook advanced to eventually catch the bumper and stop it from over winding the fixed mainspring, released again as it ran down, also drove a wind indicator from the same it had been messed with many times in the past things filed bent etc and no parts so to far gone by the time I got it, there are of course always variations to be found to the most common I mention above."