Switching arrangement for a time-division multiplex telephone system

Claim 1

IN A SWITCHING ARRANGEMENT, OVER WHICH IS CONDUCTED THE TRAFFIC OF A PLURALITY OF TIME-DIVISION MULTIPLEX TELEPHONE COMMUNICATION SYSTEMS, EACH HAVING A TELEPHONE MULTIPLEX LINE TO WHICH THE SUBSCRIBERS OF THE CORRESPONDING SYSTEM ARE PERIODICALLY CONNECTED IN PULSE-WIDE FASHION IN EACH CASE BY MEANS OF SPEECH SWTICHES, SAID ARRANGEMENT BEING CONSTRUCTED AS A COUPLING OR CROSS-WIRE MULTIPLEX TO THE ROW CONDUCTORS OF WHICH ARE INDIVIDUALLY CONNECTED THE TELEPHONE MULTIPLEX LINES SO THAT VIA ITS COLUMN CONDUCTORS, THERE CAN BE CONDUCTED THE TRAFFIC BETWEEN THE DIFFERENT TIME-DIVISION MULTIPLEX TELEPHONE COMMUNICATION SYSTEMS, BY PULSE-WISE CLOSURE OF COUPLING POINT CONTACTS WHICH EFFECT CONNECTIONS BETWEEN INVOLVED ROW CONDUCTORS, AS WELL AS THE TRAFFIC WITHIN THE INDIVIDUAL TIMEDIVISION MULTIPLEX TELEPHONE COMMUNICATION SYSTEMS, LIKEWISE BY PULSE-WISE CLOSURE OF COUPLING POINT CONTACTS WHICH ARE ADAPTED TO PRODUCE CONNECTIONS WITH TIME-DIVISION MULTIPLEX TELEPHONE COMMUNICATION SYSTEMS HAVING SPEECH ENERGY STORES INSTEAD OF SUBSCRIBERS, WHICH ARE CONNECTED VIA THEIR MULTIPLEX LINES TO SPECIAL COLUMN CONDUCTORS, AND WHEREIN MULTIPLEX LINES OF TIME-DIVISION MULTIPLEX COMMUNICATION SYSTEMS HAVING LINES FOR OUTGOING AND INCOMING TRAFFIC LEADING TO OTHER CENTRAL EXCHANGES ARE CONNECTED TO SPECIAL COLUMN CONDUCTORS; THE IMPROVEMENT WHICH COMPRISES, DISPOSED IN SAID COUPLING MULTIPLEADDITIONAL COUPLING POINT CONTACTS ASSOCIATED WITH A COMBINATION PAIR OF THE SPECIAL COLUMN CONDUCTORS TO WHICH ARE CONNECTED THE MULTIPLEX LINES OF THE ADDITIONAL TIMEDIVISION MULTIPLEX COMMUNICTION SYSTEMS HAVING LINES LEADING TO OTHER EXCHANGES, VIA WHICH ADDITIONAL COUPLING POINT CONTACTS TRAFFIC CAN BE EFFECTED BETWEEN THE ADDITIONAL TIME-DIVISION MULTIPLEX COMMUNICATION SYSTEMS, BY PULSEWISE CLOSURE OF THE ADDITIONAL COUPLING POINT CONTACTS WHICH ARE CONNECTED TO SPECIFIC MULTIPLEX LINES INVOLVED IN CONNECTIONS WHICH ARE TO BE ESTABLISHED.