I've never paid enough attention to jamb-controlled doors. It now occurs to me that there is an extra complication caused by having the time lock attached to the door, while the combination locks are attached to the frame. In an ordinary door they are both attached to the inside face of the door and interconnected. In a jamb-controlled door the interconnection has to deal with the separation of the two mechanisms. Is this spelled out in any of the patents?

As for the emergency door, do we know for certain if the movable/rotating lug ring is on the frame (and the lugs on the door are fixed), or are the frame lugs fixed and the door's lugs rotate? I noticed that the emergency door in your last post has three handles: one on the door for the pressure system, a straight handle on the door, and a hand wheel on the control box. I will speculate that the straight handle "tests" the time lock and deploys an enabling mechanism (perhaps via the slot you spotted). The control box then takes care of lug rotation if the combination lock(s) allow it, as well as the time lock.

Does that seem likely/plausible?