CHANGING GEAR BOX ON 10' TRANSFER BELT, THE GEAR BOX SMASHED HIS MIDDLE FINGER. HE PULLED BACK AND HIT HIS ELBOW ON A PIECE OF ANGLE IRON. AT THE TIME HE THOUGHT IT WAS NOT INJURED BAD ENOUGH TO REPORT AS WORK RELATED INNJUGY. HIS ELBOW CONTINUED TO HURT, HE SOUGHT MEDICAL ATTENTION IN APRIL. REPORTED TO EE AS A WORK RELATED INJURY 5-2-02. COMPLETED CO INJURY REPORT BUT DOES NOT WA