Diagonally translating door

A door and door jamb arrangement, for securing the opening of a secure space, the door and door jamb arrangement including:

• a door jamb;
• a door adapted to be hingedly attached to the door jamb with a hinge arrangement, the door having a hinged edge or end, and non-hinged edges or ends including a top, a bottom and a remote edge;
• and
• an opening having a planar space defined by the door jamb and adapted to be closed by the door in a closed position,
• wherein:
• the hinge arrangement comprises
• (a) a first hinge affixed to the door jamb and having a first hinge axis, and
• (b) a second hinge affixed to the door and having a second hinge axis;
• and wherein the hinge arrangement is adapted, when the door is near or adjacent the closed position:
• (i) to move the door and the second hinge axis laterally relative to the door jamb;
• (ii) to move at least a door portion of two adjacent edges of the door relative to corresponding and adjacent jamb portions of an edge of the door jamb between overlapping and non-overlapping positions;
• and
• wherein the door and door arrangement further comprises a locking mechanism which is adapted to move the door vertically relative to the door jamb.