Escapement operating arrangement for typewriters

Claim 1

IN A TYPEWRITER, IN COMBINATION, A CARRIAGE HAVING A PLATEN AND A RACK BAR, AND BEING BIASED TO MOVE IN ONE DIRECTION; AN ESCAPEMENT MECANISM INCLUDING A GEAR MESHING WITH SAID RACK BAR AND A TOOTHED ESCAPEMENT WHEEL CONNECTED TO SAID GEAR FOR ROTATION THEREWITH, A PAIR OF ESCAPEMENT MEMBERS, MEANS FOR MOUNTING SAID ESCAPEMENT MEMBERS, MEANS FOR MOUNTING SAID SAID ESCAPEMENT MEMBERS ALSO FOR SHIFTING MOVEMENT, A SPRING CONNECTING SAID ESCAPEMENT MEMBERS AND URGING THE SAME TO TURN IN OPPOSITE DIRECTIONS, AND A STOP SECURED TO THE OTHER ESCAPEMENT MEMBER AND ABUTTING SAID ONE ESCAPEMENT MEMBER IN A SELECTED ANGULAR POSITION OF SAID ESCAPEMENT MEMBERS, EACH ESCAPEMENT MEMBER HAVING A PAWL PORTION ADAPTED TO COOPERATE WITH SAID ESCAPEMENT WHEEL, AND SAID ONE ESCAPEMENT MEMBER HAVING A COUPLING PART; A TYPE BAR MOVABLE TOWARD AND AWAY FROM THE PLATEN OF SAID CARRIAGE; A UNIVERSAL BAR OPERATIVELY CONNECTED WITH SAID TYPE BAR TO MOVE IN A FIRST DIRECTION DURING MOVEMENT OF SAID TYPE BAR TOWARD SAID PLATEN; SPRING MEANS URGING SAID UNIVERSAL BAR TO MOVE IN A SECOND OPPOSITE DIRECTION WHEN SAID TYPE BAR MOVES AWAY FROM SAID PLATEN; A COUPLING MEMBER CONNECTED WITH SAID UNIVERSAL BAR FOR MOVEMENT IN SAID FIRST AND SECOND DIRECTION, AND BEING MOUNTED FOR MOVEMENT IN A DIRECTION TRANVERSE TO SAID FIRST AND SECOND DIRECTIONS, SAID COUPLING MEMBER HAVING A PART COOPERATING WITH SAID COUPLING PART OF SAID ONE ESCAPEMENT MEMBER; A SPRING URGING SAID COUPLING MEMBER TO MOVE IN SAID TRANSVERSE DIRECTION TO A POSITION IN WHICH SAID COUPLING PARTS COOPERATE AND ARE COUPLING, A STOP LIMITING MOVEMENT OF SAID COUPLING MEMBER UNDER THE ACTION OF SAID SPRING; SAID COUPLING MEMBER, SAID COUPLING PARTS, AND SAID ONE ESCAPEMENT MEMBER BEING ARRANGED AND CONSTRUCTED IN SUCH A MANNER THAT MOVEMENT OF SAID COUPLING MEMBER IN SAID FIRST DIRECTION CAUSES ENGAEMENT BETWEEN SAID COUPLING PARTS AND TRANSVERSE DISPLACEMENT OF SAID COUPLING MEMBER AGAINST THE ACTION OF THE SPRING AND AWAY FROM SAID STOP WHEREUPON SAID SPRING RETURNS SAID COUPLING MEMBER IN SAID TRANSVERSE DIRECTION TO A COUPLING POSITION IN WHICH SAID COUPLING PARTS ARE COUPLED DURING MOVEMENT OF SAID COUPLING MEMBER IN SAID SECOND DIRECTION FOR TURNING SAID ONE ESCAPEMENT MEMBER TO A POSITION RELEASING SAID ESCAPEMENT WHEEL WHEREBY A CARRIAGE STEP IS EFFECTED DURING THE MOVEMENT OF SAID TYPE BAR AWAY FROM SAID PLATEN.