3. IN AN ACTUATING MECHANISM, THE COMBINATION OF, A BODY, AN ACTUATOR MOUNTED ON SAID BODY FOR MOVEMEWNT FROM A FIRST POSITION TO AN INTERMEDIATE POSITION, FROM SAID INTERMEDIATE POSITION TO A SECOND POSITION AGAINST A RESISTANCE FORCE, AND THEN BACK TO SAID FIRST POSITION, AN OPERATOR MANUALLY MOVABLE BACK AND FORTH RELATIVE TO SAID BODY, A LOST MOTION CONNECTION BETWEEN SAID OPERATOR AND SAID ACTUATOR WHEREBY MOVEMENT OF THE OPERATOR IN ONE DIRECTION FIRST TAKES UP THE LOST MOTION IN SAID CONNECTION AND THEN SHIFTS THE ACTUATOR FROM SAID FIRST POSITION TO SAID INTERMEDIATE POSITION, MOVEMENT OF THE OP-