Automatic livestock head gate

Claim 1

IN AN AUTOMATICALLY ACTUATED LIVESTOCK HEADGATE, THE COMBINATION OF A PAIR OF LATERALLY SPACED UPRIGHT MEMBERS, A PAIR OF GATE SECTIONS, ONE FOR EACH MEMBER, EACH GATE SECTION MOUNTED TO ITS MEMBER FOR SWINGING MOVEMENT ABOUT AN UPRIGHT AXIS, EACH GATE HAVING AN ANIMAL NECK ENGAGING OUTER EDGE, MEANS INTERCONNECTING SAID GATE SECTIONS FOR SYNCHRONOUS MOVEMENT IN EITHER DIRECTION TOWARD AND AWAY FROM A CENTRAL, SUBSTANTIALLY COPLANAR CLOSED CONDITION IN WHICH SAID OUTER EDGES CAN PINCH BETWEEN THEM THE NECK OF AN ANIMAL, AND RELEASABLE LATCH MEANS ABOVE SAID GATE SECTIONS OPERABLE TO ENGAGE AND HOLD SAID GATE SECTIONS IN SAID CLOSED CONDITION, SAID LATCH MEANS OPERABLE AUTOMATICALLY TO ENGAGE AND HOLD SAID GATE SECTIONS IN SAID CLOSED CONDITION RESPONSIVE TO MOVEMENT OF THE GATE SECTIONS INTO THE CLOSED CONDITION FROM EITHER DIRECTION.