See Fig. 16 above. A piece of rebar is attached to the bottom of the branch. Place a piece of rubber between where you attach the rebar to the branch, and between the wire and the branch. Make sure to leave 1/2 inch between the rebar and the trunk. Run a guy wire from below over the end of the rebar. Having a long rebar gives you more leverage.
You don’t have to tie the rebar with the guy at the end of the rebar. Use the long rebar for leverage as you slowly bend. Take up the slack in the guy wire as you bend.
It’s far easier with two people. One pulling the rebar down, the other tightening the guy wire.
You don’t have to do the bend all in one go. Bend some, then a month later bend some more. Then a month later...
I bent the trunk on the contraption above 3 times over the course of a year before I removed it.
You can also do the pulling with a turnbuckle or a jack. These are helpful if you’re doing the work alone.