Trailer hitch with multiple electrical connections

Claim 1

A TRAILER HITCH WHICH PROVIDES AT LEAST FOUR ELECTRICAL CONNECTIONS INSULATED THEREFROM FOR SECURING A TRACTOR VEHICLE TO A TOWED VEHICLE, WHICH COMPRISES: (A) A METALLIC BALL PIN INCLUDING A HEAD THE MAJOR PART OF WHICH HAS A SUBSTANTIALLY SPHERICAL OUTLINE ADAPTED FOR ATTACHMENT TO ONE OF SAID VEHICLES AND CONTAINING AT LEAST ONE PASSAGEWAY FOR RECEIVING ELECTRICAL CONDUCTORS, (B) AT LEAST FOUR ELECTRICAL CONTACT SEGMENTS INSULATED ELECTRICALLY FROM SAID METALLIC BALL PIN HEAD AND RIGIDLY FIXED THERETO, SAID SEGMENTS HAVING EXTERIOR SURFACES SUBSTANTIALLY SPHERICAL ABOUT THE CENTER OF SAID SPHERICAL OUTLINE OF THE HEAD, EXTENDING HORIZONTALLY THROUGH ARCS GREATER THAN ABOUT 90* AND HAVING EXTENDED VERTICAL DIMENSIONS, ONE PAIR OF SEGMENTS BEING SITUATED AT THE UPPER END OF THE HEAD AND ANOTHER PAIR HAVING PORTIONS THEREOF NEAR THE EQUATOR OF THE HEAD, ONE SEGMENT OF EACH PAIR BEING SITUATED ON ONE SIDE AND THE OTHER ON THE OTHER SIDE OF A PLANE PASSING THROUGH THE VERTICAL AXIS OF THE BALL PIN, (C) A SOCKET SUBSTANTIALLY ENCLOSING THE MAJOR PART OF SAID HEAD FOR TRANSMITTING MECHANICAL THRUST TO SAID BALL PIN AND ADAPTED FOR ATTACHMENT TO THE OTHER OF SAID VEHICLES, SAID SOCKET INCLUDING MEANS SECURING SAID HEAD THEREIN BY ENGAGEMENT WHOLLY BELOW SAID EQUATOR AND BEING IN VERTICAL THRUST-TRANSMITTING RELATION THERETO AND OUT OF ELECTRICAL CONTACT WITH SAID CONTACT SEGMENTS THROUGHOUT RELATIVE TURNING MOVEMENT OF THE BALL PIN AND THE SOCKET ABOUT A VERTICAL AXIS AND THROUGHOUT LIMITED RELATIVE INCLINATIONS OF THE VERTICAL AXES OF SAID BALL PIN AND SAID SOCKET ABOUT THE LONGITUDINAL DRAFT LINE OF SAID CONJOINED VEHICLES, (D) AT LEAST FOUR BRUSHES MOUNTED IN SAID SOCKET AND ELECTRICALLY INSULATED THEREFROM AND POITIONED TO MAKE SLIDING CONTACTS WITH DIFFERENT ONES OF SAID SEGMENTS, (E) SAID BRUSHES BEING MOVABLE IN DIRECTIONS APPROACHING SAID SURFACES OF THE CONTACT SEGMENTS AND BEING PROVIDED WITH RESILIENT MEANS URGING THE BRUSHES INTO ENGAGEMENT WITH SAID SEGMENTS, (F) AT LEAST FOUR ELECTRICAL CONDUCTORS INSULATED FROM EACH OTHER AND FROM SAID BALL PIN AND CONNECTED RESPECTIVELY TO SAID SEGMENTS AND EXTENDING THROUGH SAID PASSAGEWAY, AND, (G) SEPARATE ELECTRICAL CONDUCTORS INSULATED FROM SAID SOCKET AND FROM EACH OTHER CONNECTED RESPECTIVELY TO SAID BRUSHES.