Yesterday, it was asked on the now vanished again, Sawmill forum, about the possibility of a saw return device.
I mentioned this, and went off to find a decent image of it, while falling asleep at the pc (LONG week). Cut and paste and ad www in front (doing this way because links may not work in the future, like forums, LOL)
Ebay item number 150297421417 from Wolf Machinery
These (I am thinking) could help give the original requester an idea (along with the SRK limit stop).