Core matrix system for monitoring a plurality of contacts

Claim 1

DEVICE FOR TRIGGERING ONE OF TWO ELECTRIC SIGNALS WHEN A CONTACT FORMING PART OF AN ASSEMBLY COMPRISING A LARGE NUMBER OF CONTACTS CLOSES OR OPENS, AND HAVING MEANS FOR PERFORMING A RECURRENT SCRUTINY BY MEANS OF COINCIDENT CURRENT PULSES APPLIED TO A MATRIX OF TOROIDAL MAGNETIC CORES HAVING A RECTANGULAR HYSTERESIS LOOP, TWO PULSES OF OPPOSITE POLARITIES BEING APPLIED SUCCESSIVELY TO THE SAME CORE IN THE COURSE OF ONE SCRUTINY, AND THE ORDINAL NUMBERS OF THE PULSES BEING INDICATED BY A COUNTER, SAID DEVICE INCLUDING THREE CORE MATRICES, OF WHICH THE VERTICAL AND HORIZONTAL WIRES ARE RESPECTIVELY IN SERIES BETWEEN THE THREE MATRICES, EACH CORE OF THE FIRST MATRIX COMPRISING A WINDING WHOSE ENDS ARE CONNECTED TO THE TWO POINTS OF A CONTACT TO BE CHECKED, TWO BINARY FLIP-FLOPS ASSOCIATED WITH THE CORES OF ODD AND EVEN RANK, RESPECTIVELY, OF THE FIRST MATRIX IN ORDER TO COPY THE STATE OF THE SAID CORES AT THE SECOND SCRUTINISING TIME, A THIRD AND A FOURTH BINARY FLIP-FLOP FOR COPYING, RESPECTIVELY , THE STATE OF THE CORES OF THE SECOND AND THIRD MATRICES, MEANS FOR UTILISING THE STATE OF EACH FLIP-FLOP DURING THE FIRST SUCCEEDING SCRUTINISING TIME, IN COMBINATION WITH THE STATES OF TWO CORES OF THE OTHER TWO MATRICES, RESPECTIVELY, AND FOR TRANSFERRING THE STATE OF THE POSITION CORE (N-1) FROM THE FIRST MATRIX TO A POSITION CORE N IN THE SECOND AND THIRD MATRICES, THE STATE OF THE PULSE COUNTER SUPPLYING THE REFERENCE NUMBER "N" OF A CONTACT WHICH IS IN FACT SITUATED AT THE POSITION (N-1), A FIRST LOGICAL CIRCUIT GOVERNING THE REGISTRATION IN THE SECOND AND THIRD MATRICES, AT THE SECOND SCRUTINISING TIME, AS A FUNCTION OF THE STATE OF THE THREE COPYING BINARY FLIP-FLOPS OF THE MATRICES AT THE FIRST SCRUTINISING TIME, A SECOND LOGICAL CIRCUIT EMITTING A SIGNAL IF THE STATE OF THE COPYING FLIP-FLOPS AT THE FIRST SCRUTINISING TIME CORRESPONDS TO THE CONFIRMED CLOSED NOTATION, I.E. 0 0 1, AND ANOTHER SIGNAL IF THE SAID STATE CORRESPONDS TO THE CONFIRMED OPENING NOTATION, I.E. 1 1 0, THE SIGNAL EMITTED BY THE SECOND LOGICAL CIRCUIT PREVENTING THE STATE OF THE COUNTER FROM CHANGING AND PRODUCING THE WRITING OF THE INDICATED NUMBER IN THE STORE OF THE COMPUTER.