Model "L" Offset Disc Question

Hey guys, maybe more of a clarification.  I am building a 1/16th model of the "L" disc from a parts manual as I don't have any pictures of a real disc.  There is a hinge between the two disc frames (a pipe about two or three feet long) and it appears from the parts list art that it is bolted and therefore rigid at 90 degrees to the front frame.  The back frame pivots at the other end of this pipe.  So if the hitch is adjusted to offset the front gangs, and the hinge is 90 degrees to the frame it looks to me that the back gang won't end up in line when the cylinder is extended to offset the back gangs.   So if anyone has used one of these discs maybe you could enlighted me how it works or if maybe I am correct that the two sections won't line up when extended.  Or maybe better said, the back disc on the hinge end won't pull in the soil that the front disc threw out.  Hope that makes sense!!