Brake and coupling apparatus

Claim 1

IN AN APPARATUS FOR TRANSMITTING MOTION FROM A FIRST AREA TO A SECOND AREA, IN COMBINATION, A WALL SITUATED BETWEEN AND SEPARATING SAID AREAS FROM EACH OTHER; A FIRST AND A SECOND CONTROL MEMBER RESPECTIVELY LOCATED IN SAID FIRST AND SECOND AREAS, SAID SECOND CONTROL MEMBER COMPRISING A CARRIER ADJACENT TO SAID WALL AND A DRIVEN SHAFT ROTATABLY SUPPORTED BY SAID CARRIER; MOTION TRANSMITTING MEANS INCLUDING A SECOND SHAFT EXTENDING FROM SAID FIRST CONTROL MEMBER THROUGH SAID WALL AND HAVING AN END PORTION COAXIAL WITH AND ADJACENT TO SAID DRIVEN SHAFT; RECIPROCATING MEANS INCLUDING AN ACTUATING MEMBER LOCATED IN SAID FIRST AREA FOR MOVING SAID CARRIER AND SAID DRIVEN SHAFT AXIALLY TOWARD AND AWAY FROM SAID SECOND SHAFT; COUPLING MEANS COMPRISING COOPERATING COUPLING ELEMENTS PROVIDED ON SAID SHAFTS AND ARRANGED TO ESTABLISH A DRIVING CONNECTION BETWEEN THE SHAFTS IN RESPONSE TO MOVEMENT OF SAID CARRIER TOWARD SAID SECOND SHAFT; AND BLOCKING MEANS FOR NORMALLY HOLDING SAID DRIVEN SHAFT AGAINST ROTATION WITH REFERENCE TO SAID CARRIER AND BEING OPERATIVE TO RELEASE SAID DRIVEN SHAFT IN RESPONSE TO MOVEMENT OF SAID CARRIER TOWARD SAID SECOND SHAFT SO THAT THE DRIVEN SHAFT IS RELEASED AT THE TIME IT IS COUPLED TO SAID SECOND SHAFT.