I see the axle is a couple inches in front of the drop and what looks like a turnbuckle with small dia rods(not parallel) connected to the lever arm going up to the rear of the crown. The wheel/axle rotates up around the pivot point on the drop when it goes over a bump and the lever connected to the crown by the rods keeps the wheel from rising too much, is that correct?
another disc fork design I saw while browsing, a tapered blade disc mount by David Kirk and the same pic from above(Paragon Willits) for comparison
Brian