Dead bolt lock

A key operable dead bolt lock comprising:

• housing means, said housing means defining a first axis which will be generally transverse to the plane defined by the face of a door in which the lock is installed, said housing means further defining a bolt means receiving passage which is transverse to and intersects said first axis;
• at least a first key operated actuator means, said first actuator means having an axis and being releasably received in said housing means coaxially with said first axis, said actuator means having a rotatable cam means extending from a first end thereof, said cam means being rotated in response to rotation of a removable key, said first actuator means first end being disposed oppositely to the key receiving end of said first actuator means;
• elongated bolt means, said bolt means having an axis and including a retractable bolt which may be extended from a first end of said bolt means, the second end of said bolt means being received in said housing means passage, said bolt means second end intersecting said housing means first axis;
• means for releasably securing said bolt means to said housing means;
• lever means, said lever means being pivotally supported on said bolt means second end;
• cam follower means mounted on said lever means, said cam follower means being positioned for engagement by said first actuator means cam means whereby rotation of a key received in said first actuator means will be translated into motion of said lever means, said cam follower means being moved to opposite sides of a first plane through said housing means first axis and transverse to said bolt means axis by said cam means;
• means coupling said lever means to said bolt means bolt whereby said bolt will be extended and retracted in accordance with the movements of said lever means;
• and
• means for locking said first actuator means in said housing means.