Film identification unit for race cameras

Claim 1

IN A CAMERA OF THE CONTINUOUS FLOW, STRIP FILM TYPE FOR PHOTOGRAPHICALLY RECORDING THE ORDER IN WHICH CONTESTANTS CROSS THE FINISH LINE OF A RACE COURSE HAVING FILM FINISHING MEANS FOR CONTINUOUSLY MOVING A FILM ALONG A PATH OF TRAVEL THROUGH THE CAMERA, AN EXPOSURE SLIT ADJACENT THE PATH OF FILM TRAVEL FOR COVERING A NARROW FIELD OF VIEW CONTAINING THE FINISH LINE OF THE RACE COURSE, AND LENS MEANS FOR FORMING AN IMAGE OF THE FIELD OF VIEW THROUGH SAID SLIT ONTO THE FILM; INDICIA RECORDING MEANS FOR PRODUCING A PHOTOGRAPHIC RECORD OF SELECTED INDICIA ON THE FILM DURING ADVANCEMENT THEREOF THROUGH THE CAMERA COMPRISING A STATIONARY HUB MEMBER REMOVABLY MOUNTED IN THE CAMERA ADJACENT THE PATH OF FILM TRAVEL AND HAVING AN AXIALLY ELONGATED CYLINDRICAL PERIPHERY DISPOSED ALONG AN AXIS ARRANGED TRANSVERSELY OF THE FILM AND PARALLEL TO THE ADJACENT FILM PORTION AND TO THE EXPOSURE SLIT, A LIGHT SOURCE DISPOSED WITHIN SAID HUB MEMBER EXTENDING GENERALLY ALONG SAID AXIS, MEANS FOR CONTROLLING ILLUMINATION OF THE LIGHT SOURCE, A HOLLOW, ROTATABLE SHIELD MEMBER HAVING A CYLINDRICAL SLEEVE PORTION EXTENDING IN COVERING RELATION ABOUT THE PERIPHERY OF SAID HUB MEMBER, A PLURALITY OF AXIALLY SPACED ANNULAR INDICIA BEARING RINGS OF SUBSTANTIALLY TRANSPARENT MATERIAL REMOVABLY SUPPORTED IN SIDE-BY-SIDE COAXIAL RELATION ON SAID CYLINDRICAL SLEEVE PORTION FOR AXIAL AND ANGULAR MOVEMENT ON SAID SHIELD MEMBER PROVIDING A CYLINDRICAL OUTER SURFACE TO BEAR AGAINST THE FILM OVER A SUBSTANTIAL ARCUATE ZONE DEFINING AN INDICIA PRINTING STATION, SAID RINGS HAVING OPAQUE INDICIA ON THE OUTER SURFACE THEREOF, ADJUSTABLE MEANS FOR RESTRAINING SAID RINGS AGAINST ANGULAR AND AXIAL DISPLACEMENT FROM THEIR ADJUSTED POSITIONS RELATIVE TO EACH OTHER AND TO SAID SHIELD MEMBER, MEANS URGING SSID FILM IN FRICTIONAL DRIVING CONTACT WITH THE OUTER SURFACES OF SAID INDICIA BEARING RINGS TO ROTATE SAID RINGS AND SHIELD MEMBER AS A UNIT RESPONSIVE TO ADVANCEMENT OF THE FILM AND IN ACCORDANCE WITH THE RATE OF MOVEMENT THEREOF, SAID HUB MEMBER AND SHIELD MEMBER EACH HAVING LIGHT APERTURES ALIGNED WITH EACH OF SAID INDICIA BEARING RINGS TO BE DISPOSED IN RADIAL ALIGNMENT WITH EACH OTHER AND WITH INDICIA ON SAID RINGS LOCATED AT SAID INDICIA PRINTING STATION TO PRODUCE A CONTACT IMAGE OF SAID INDICIA ON SAID FILM WHEN SAID LIGHT SOURCE IS ILLUMINATED.