Magnetically operable lock

Claim 1

A MAGNETICALLY OPERABLE LOCK COMPRISING TWO LOCK MEMBERS WHICH ARE IN CONTACT WITH EACH OTHER AND MOVABLE RELATIVE TO EACH OTHER, AND BLOCKING ELEMENTS OF MAGNETIC MATERIAL COACTING WITH SAID LOCK MEMBERS AND BEING MOVABLE BY MEANS OF A MAGNETIC KEY TO POSITIONS IN WHICH THEY ENABLE MOVEMENT OF ONE OF SAID LOCK MEMBERS RELATIVE TO THE OTHER LOCK MEMBER IN ONE DIRECTION, WHILE IN OTHER POSITIONS THEY PREVENT SUCH MOVEMENT, EACH OF SAID LOCK MEMBERS HAVING A FLAT SURFACE, THE FLAT SURFACE ON ONE LOCK MEMBER FACING THE FLAT SURFACE ON THE OTHER LOCK MEMBER, EACH OF SAID FLAT SURFACES HAVING A NUMBER OF PARALLEL OBLONG RECESSES, SAID LOCK MEMBERS BEING SO ARRANGED IN RELATION TO EACH OTHER THAT SAID RECESSES IN ONE LOCK MEMBER COINCIDE WITH CORRESPONDING RECESSES IN THE OTHER LOCK MEMBER WHEN THE LOCK MEMBERS ARE IN LOCKING POSITION TO FORM CHANNELS IN WHICH SAID BLOCKING ELEMENTS ARE FREELY MOVABLE, ONE OF SAID LOCK MEMBERS HAVING ADDITIONAL RECESSES EXTENDING AT AN ANGLE FROM THE AFOREMENTIONED RECESSES, AND GUIDING MEANS FOR SAID KEY ENABLING SAID KEY TO BE MOVED INTO A POSITION IN WHICH THE BLOCKING ELEMENTS ARE SUBJECTED TO MAGNETIC ATTRACTION FROM MAGNET POLES OF SAID KEY AND ENABLING SAID KEY TO BE MOVED ALONG THE LOCK MEMBERS IN A DIRECTION PARALLEL TO SAID CHANNELS TO A POSITION IN WHICH SAID BLOCKING ELEMENTS ARE LOCATED IN FRONT OF SAID ADDITIONAL RECESSES, THEREBY ENABLING MOVEMENT OF ONE OF SAID LOCK MEMBERS RELATIVE TO THE OTHER LOCK MEMBER.