Door fastening means

For use with a door frame having upper and lower elements, a door having a vertical edge hinged to the frame, keeper members secured to the upper and lower elements of the frame, spring biased latch bolts carried by the door and engageable with the keeper members, and toggle bars connected at their one ends to the latch bolts, the combination of a cam disc rotatably carried by the door and having an arcuate cutout in the edge portion thereof defining a pair of end shoulders, connecting means connecting the other ends of the toggle bars to said cam disc at diametrically opposed locations thereon, a lock actuator plate rotatably carried by the door coaxially of said cam disc, a post member secured to said lock actuator plate and movable within said cam disc cutout, and actuator means operatively connected to said actuator plate to rotate the same between a first unlocked position wherein the latch bolts are disengaged from the keeper members, a second intermediate position wherein said post member on said actuator plate upon rotation of said lock actuator plate engages an end shoulder of said cam disc to rotate the same thereby effecting movement of the toggle bars and the latch bolts into engagement with the keeper members and a third fully locked position wherein said actuator plate projects laterally above the door frame.