Tom; didn't mean to snub you sorry, the wheel does move away from the centerline of the bike in the opposite direction it turns, all conventional fork bikes do due to the trail. It's only a slight movement at low input angles and obviously bigger at bigger steer angles.
At slow speed when trying to balance the bike I think it will help, at higher speeds I (hopefully) will be using lower input angles, will also be counter steering.
Sid; the two arms are to make the hinge link plate work (Thanks DaveL for the prompt)
I wasn't hiding anything when I didn't put my "engineering drawings" up, other than most of my stuff is done from very basic line sketches on the back of recycled paper while on the phone at my desk.
For everyones amusement;
I haven't drawn the suspension rocker or shock that supports the spherical bearing.
You can hardly tell the difference between my drawings an Woody's
OK, this is how it works;
Handlebars pivot on a vertical pivot (obviously)
The "hinge plate" hinges from the handlebars and has the tie rod bearings attached to the bottom.
This allows the two tie rod ends to move back and forth a little as a pair but they are at the same angle to each other as the handlebars.
The two rods go forward to the yoke and make the yoke turn the same amount as the handlebars.
When the suspension moves it will be in arc, with only one arm this would create bumpsteer unless the geometry is perfect.
It's pretty easy to get 0 bump with the wheel straight ahead but a bit more difficult to get it over the full suspension and steering travel matrix.
By having two arms that input steering by their relative positions rather than one arm that input's steering by it's actual position allows the use of the hinge plate to absorb the wheel travel arc.
The hinge plate shape is going to be a little tricky as I want the rose joints to be in line with the handlebar pivot when the wheel is at normal ride height, it will move back slightly in both bump and rebound suspension travel directions.
Simple, different but simple, two words that people use about me.