Duplex photocopier

Claim 1

A COPYING CAMERA FOR PHOTOGRAPHICALLY RECORDING BOTH SIDES OF A DOCUMENT ON BOTH SIDES OF A FILM COMPRISING; A FILM HOLDER INCLUDING A FIRST STORAGE CONTAINER FOR AN UNEXPOSED FILM ROLL, A SECOND STORAGE CONTAINER FOR AN EXPOSED FILM ROLL, A FIRST EXPOSURE PLANE WHERE ONE SIDE OF THE FILM MAY BE EXPOSED, A SECOND EXPOSURE PLANE WHERE THE OTHER SIDE OF THE FILM MAY BE EXPOSED, SAID FIRST AND SECOND EXPOSURE PLANES SPACED APART FOR SEQUENTIAL EXPOSURE AS THE FILM MOVES FROM THE FIRST TO THE SECOND STORAGE CONTAINER; A DOCUMENT CONVEYOR FOR MOVING THE DOCUMENT THROUGH A FIRST OBJECT PLANE WHERE ONE SIDE OF THE DOCUMENT IS ILLUMINATED, ADDITIONAL CONVEYOR MEANS FOR MOVING THE DOCUMENT THROUGH A SECOND OBJECT PLANE WHERE THE OTHER SIDE OF THE DOCUMENT IS ILLUMINATED, SAID FIRST AND SECOND OBJECT PLANES SPACED APART FOR SEQUENTIAL ILLUMINATION; A FIRST OPTICAL SYSTEM FOR FOCUSSING LIGHT RAYS FROM THE FIRST OBJECT PLANE ONTO THE FIRST EXPOSURE PLANE, A SECOND OPTICAL SYSTEM FOR FOCUSSING LIGHT RAYS FROM THE SECOND OBJECT PLANE ONTO THE SECOND EXPOSURE PLANE, SAID OPTICAL SYSTEMS EACH INCLUDING A FOCUSSING LENS, A PLANE MIRROR AND A DOUBLE RECTANGULAR MIRROR FOR PROVIDING THE EQUIVALENT OF THREE REFLECTIONS; AND A MOTOR OPERATED MECHANISM WHICH CONTROLS THE SPEEDS OF THE DOCUMENTS AND THE FILM TO MOVE IN THE SAME DIRECTION AND IN SYNCHRONISM WITH EACH OTHER.