Hatch cover operating arrangement

Claim 1

A CLOSURE ARRANGEMENT COMPRISING, IN COMBINATION, A FIRST PANEL-LIKE MEANS; A SECOND PANEL-LIKE MEANS CONNECTED TO AN EDGE OF SAID FIRST MEANS FOR TURNING MOVEMENT ABOUT A FIRST AXIS BETWEEN A CLOSED POSITION WHEREIN SAID MEANS ARE GENERALLY COPLANAR AND AN OPEN POSITION WHEREIN SAID MEANS ARE IN FOLDED RELATIONSHIP; AN OPERATING MEANS INCLUDING AN OPERATING MEMBER MOVABLE BETWEEN AN ADVANCED POSITION AND A RETRACTED POSITION, SAID OPERATING MEANS, BEING PIVOTALLY MOUNTED ON SAID FIRST MEANS; A LINK PIVOTALLY CONNECTED AT ONE END THEREOF TO SAID OPERATING MEMBER AND PIVOTALLY CONNECTED AT THE OTHER END THEREOF TO SAID SECOND MEANS FOR TURNING MOVEMENT ABOUT A SECOND AXIS PARALLEL TO SAID FIRST AXIS, SAID LINK EXTENDING IN SAID CLOSE POSITION OF SAID PANEL-LIKE MEANS SUBSTANTIALLY IN THE DIRECTION OF MOVEMENT OF SAID MEMBER; AND A LEVER PIVOTALLY CONNECTED AT ONE END THEREOF TO SAID FIRST MEANS FOR TURNING MOVEMENT ABOUT A THIRD AXIS PARALLEL TO SAID FIRST AND SECOND AXES, AND BEING PIVOTALLY CONNECTED AT THE OTHER END THEREOF TO SAID LINK INTERMEDIATE THE ENDS OF THE SAME, SAID LEVER AND A PLANE PASSING THROUGH SAID FIRST AND SECOND AXES EXTENDING TRANSVERSE TO SAID LINK AND TO THE DIRECTION OF MOVEMENT OF SAID OPERATING MEMBER WHEREBY SAID SECOND MEANS TURNS THROUGH A GREATER ANGLE ABOUT SAID FIRST AXIS THAN SAID LEVER TURNS ABOUT SAID THIRD AXIS DURING MOVEMENT OF SAID OPERATING MEMBER BETWEEN SAID ADVANCED AND RETRACTED POSITIONS AND WHEREBY SAID LINK ACTS WITH A MAXIMUM PUSHING FORCE ON SAID SECOND MEANS AT THE START OF THE MOVEMENT OF SAID OPERATING MEMBER TO MOVE SAID PANEL-LIKE MEANS FROM CLOSED TO OPEN POSITION.