Door operator

Claim 1

AN OPERATOR ASSEMBLY ADAPTED TO BE OPEATED SELECTIVELY BY POWER AND BY HAND, COMPRISING A SHAFT, A MANUALLY OPERABLE DEVICE FOR DRIVING SAID SHAFT INCLUDING A WHEEL ROTATABLE RELATIVE TO SAID SHAFT, A FIRST ROTATABLE CLUTCH MEMBER HAVING A DRIVING CONNECTION WITH SAID SHAFT SUCH THAT ROTATION OF SAID FIRST CLUTCH MEMBER WILL EFFECT ROTATION OF SAID SHAFT, A FIXED BRAKE MEMBER, SAID FIRST CLUTCH MEMBER BEING AXIALLY MOVABLE TOWARD AND AWAY FROM A NORMAL POSITION IN WHICH IT ENGAGES SAID BRAKE MEMBER TO HOLD SAID SHAFT FROM RROTATION, MEANS URGING SAID FIRST CLUTCH MEMBER TOWARD SAID NORMAL POSITION, A SECOND CLUTCH MEMBER ROTATABLE RELATIVE TO SAID SHAFT, SAID SECOND CLUTCH MEMBER BEING POSITIONED OPPOSITE SAID FIRST CLUTCH MEMBER FOR AXIAL MOVEMENT RELATIVE THERETO, MEANS FOR AXIALLY SHIFTING SAID SECOND CLUTCH MEMBER TOWARD AND INTO DRIVING ENGAGEMENT WITH SAID FIRST CLUTCH MEMBER IN RESPONSE TO INITIAL ROTATION OF SAID WHEEL AND FOR THEREAFTER ROTATING SAID SECOND CLUTCH MEMBER WITH SAID WHEEL, SAID FIRST CLUTCH MEMBER BEING MOVED FROM ENGAGEMENT WITH SAID BRAKE MEMBER BY SAID SECOND CLUTCH MEMBER WHEN ENGAGED THEREBY, TO PERMIT THE TRANSMISSION OF THE ROTATION OF SAID WHEEL TO SAID SHAFT, POWER MEANS OPERATIVE TO ROTATE SAID SHAFT, AND MEANS FOR AUTOMATICALLY MOVING SAID FIRST CLUTCH MEMBER FROM ENGAGEMENT WITH SAID BRAKE MEMBER WHEN SAID POWER MEANS IS OPERATED.