A ring binder

INTRODUCING A RING FOLDER COMPRISING A SUBSTANTIALLY RIGID, UPPER, CURVED HOUSING STRUCTURE SUPPORTING A PAIR OF PLATES (14A, 14B), THE PLATES ARE PIVOTANTLY MOVABLE BETWEEN A FIRST POSITION IN WHICH THE ANGLE BETWEEN THE TOP OF THE TOP PLATES (14A, 14B) IS LESS THAN 180 (DEGREES), AND A SECOND POSITION IN WHICH THE ANGLE BETWEEN THE TOP SURFACES OF THE PLATES IS GREATER THAN 180 (DEGREES), A CLOSURE TO BLOCK THE PAIR OF PLATES AND TRIGGERS OR PAIRS OF HALF-RING MEMBERS TO OPERATE THE CLOSURE AND CLOSURE WORKS IN A FIRST LOCATION ON THE RING FOLDER AND THE TRIGGERS OR THE PAIR OF HALF-RING MEMBERS (16A, 16B, 16C) THEY OPERATE IN A SECOND LOCATION ON THE RING FOLDER, THE FIRST LOCATION IS LONGITUDINALLY DISTANT IN THE RING FOLDER OF THE SECOND LOCATION.