Safety devices for nuclear reactors

Claim 1

IN A NUCLEAR REACTOR HAVING A REACTOR SPACE, FUEL ELEMENTS IN SAID SPACE, ABSORBER ELEMENTS MOVABLE IN THE DIRECTION OF THEIR LENGTH BETWEEN THE OPERATIVE POSITION IN WHICH THE ABSORBER ELEMENTS ARE DISPOSED BETWEEN THE FUEL ELEMENTS AND EFFECT MAXIMUM NEUTRON ABSORPTION AND AN INOPERATIVE POSITION IN WHICH THE ABSORBER ELEMENTS ARE WITHDRAWN CLEAR OF THE FUEL ELEMENTS AND THE REACTIVITY OF THE REACTOR IS HIGH, POWER MEANS CONNECTED TO EFFECT MOVEMENT OF THE ABSORBER ELEMENTS BETWEEN SAID OPERATIVE AND INOPERATIVE POSITIONS, SCRAM MEANS PERMITTING RAPID MOVEMENT OF THE ABSORBER ELEMENTS INTO THEIR OPERATIVE POSITIONS, SAID DIRECTION HAVING A FIRST DISPOSITION IN SPACE WHEN THE REACTOR IS UPRIGHT; A SAFETY DEVICE INCLUDING LOCKING MEANS HAVING A LOCKING SETTING IN ENGAGEMENT WITH THE ABSORBER ELEMENTS PREVENTING MOVEMENT OF THE ABSORBER ELEMENTS TOWARDS THEIR INOPERATIVE POSITIONS, AND HAVING AN INOPERATIVE SETTING OUT OF ENGAGEMENT WITH THE ABSORBER ELEMENTS, SAID LOCKING MEANS BEING SENSITIVE TO THE DISPOSITION OF SAID DIRECTION IN SPACE AND BEING MOVED FROM THEIR INOPERATIVE SETTING TO THEIR LOCKING SETTING ON TILTING OF SAID DIRECTION THROUGH A SELECTED ANGLE FROM SAID FIRST DISPOSITION DUE TO TILTING TO THE REACTOR FROM THE UPRIGHT, STATIONARY STRUCTURE AND A VERTICAL ROD CARRYING EACH ABSORBER ELEMENT, THE LOCKING MEANS COMPRISING FOR EACH ABSORBER ELEMENT AN ASSOCIATED LOCK STRUCTURE THROUGH WHICH THE ROD EXTENDS, WHICH LOCK STRUCTURE IS MOUNTED IN THE STATIONARY AND COMPRISES A SERIES OF CHANNELS IN SAID LOCK STRUCTURE, SAID CHANNELS CONVERGING AT A SELECTED ANGLE UPWARDLY TOWARDS THE ROD, A CORRESPONDING SERIES OF MOVABLE JAMMING ELEMENTS DISPOSED AROUND THE ROD ONE IN EACH OF SAID CHANNELS, JAMMING SHOULDERS IN THE LOCK STRUCTURE ABOVE SAID CHANNELS AND ADJACENT THE ROD, SO THAT ON EXCESSIVE TILTING OF THE RE-