Power operated single blade knife

Claim 1

A POWER OPERATED KNIFE COMPRISING (A) A HOUSING, (B) AN ELECTRICALLY POWERED MOTOR IN THE HOUSING, (C) A CAGE ADJACENT THE FORWARD END OF THE HOUSING, (D) A BLADE CARRIER RECIPROCABLY MOUNTED IN THE CAGE, THE CARRIER HAVING A BLADE TANG RECEIVING SPACE EXTENDING LONGITUDINALLY OF THE CARRIER AND A LATERALLY EXTENDING APERTURE, (E) A BLADE HAVING A TANG PROVIDED WITH A LATERALLY EXTENDING APERTURE IN REGISTER WITH THE CARRIER APERTURE WHEN THE TANG HAS BEEN INSERTED IN THE CARRIER A PREDETERMINED DISTANCE, (F) A SPRING METAL BLADE RETAINER HAVING A PAIR OF ARMS ADAPTED TO ENGAGE OPPOSITE SIDES OF THE CARRIER, A CROSS PIECE CONNECTING THE ARMS SPACED FROM THE CARRIER, AND INWARDLY DIRECTED TANG ENGAGING MEMBER ON ONE OF SAID ARMS FOR ENTERING THE APERTURES IN THE CARRIER AND BLADE TANG AND RETAINING THE TANG IN THE CARRIER, (G) BLADE RELEASE MEANS IN THE HOUSING MOVABLE INTO CONTACT WITH THE RETAINER CROSS PIECE FOR MOVING SAID BLADE RETAINER RELATIVELY TO THE CARRIER AND DISENGAGING THE INWARDLY DIRECTED MEMBER FROM THE APERTURES IN THE CARRIER AND TANG TO RELEASE THE BLADE AND (H) MEANS BETWEEN THE MOTOR AND CARRIER IMPARTING RECIPROCATORY MOVEMENT TO THE CARRIER.