I agree with Miller that the three patterns (Bernard, Chain and Star) are just variations of crolle Damascus one of which is the four-iron crolle shown in my previous post. The only difference in the crolle and the other fancier patterns is the way the iron and steel are arranged in the bar that is twisted into a rope and then the ropes welded into a ribband and then wound aroung a mandrel to forge the barrels. The crolle bars consist of rectangular strips of alternating iron and steel welded into a square bar, while the Bernard bar cross section looks like a checkerboard of alternating small square bars of iron and steel. Saches book and other references show how the other patterns are made.
I do have photos of the three patterns that you mentioned and I will show them below: