Multi-conductor telecommunication cables for audio and carrier frequencies

Claim 1

A MULTI-CONDUCTOR TELECOMMUNICATION SYSTEM INCLUDING IN COMBINATION AT LEAST ONE CABLE MEANS COMPOSED OF FIVE CONDUCTORS, NAMELY, A CENTRAL CONDUCTOR AND FOUR OUTER CONDUCTORS ARRANGED SYMMETRICALLY AROUND THE CENTRAL CONDUCTOR TO FORM COLLECTIVELY A TUBE WHEREBY THE LATTER IS DIVIDED INTO FOUR DISTINCT SECTORS, ALL OF THE SAID CONDUCTORS BEING INDIVIDUALLY AND MUTUALLY INSULATED BY A MASS OF INSULATING MATERIAL IN WHICH THEY ARE EMBEDDED AND WHICH SURROUNDS THEM EXTERNALLY TO FORM AN INSULATING SHEATH, A SOURCE OF FREQUENCY ABOVE 60 KC./S., A LOAD OPERABLE BY SAID FREQUENCY, SAID SOURCE BEING CONNECTED TO SAID LOAD THROUGH THE CENTRAL CONDUCTOR AND THE TUBE IN SAID CABLE MEANS, A SOURCE OF FREQUENCY BELOW 60 KC./S. AND A LOAD OPERABLE BY SAID LOWER FREQUENCY, SAID LOWER FREQUENCY SOURCE BEING SIMULATANEOUSLY CONNECTED TO SAID LOAD THROUGH THE FOUR OUTER CONDUCTORS IN SAID CABLE MEANS USED AS A SYMMETRICAL STAR QUAD.