Nautical data correlator

Claim 1

A DATA CORRELATING DEVICE FOR FAMILIARIZING PERSONNAL WITH THE INDENTIFICATION REQUIREMENTS OF NAUTICAL VESSELS COMPRISING, IN COMBINATION: A CIRCULAR BASE DISK; A CIRCULAR SCANNING DISK OF DECREASED DIAMETER CONCENTRICALLY MOUNTED ON EACH SIDE OF SAID BASE DISK AND CAPABLE OF ROTATION WITH RESPECT TO SAID BASE DISK; SAID BASE DISK HAVING AN EXPOSED RIM PORTION SUBDIVIDED INTO A PLURALITY OF ARCUATED SECTORS, EACH OF SAID SECTORS HAVING PRINTED THEREIN DESCRIPTIVE PHRASES INDENTIFYING VARIOUS NAUTICAL CONDITIONS OF PROCEDURES; EACH OF SAID SCANNING DISKS HAVING A FIRST AND SECOND SECTOR-SHAPED WINDOW CUT THEREFROM, SAID WINDOWS BEING SYMMETRICALLY POSITIONED WITH RESPECT TO A DIAMETER OF SAID SCANNING DISK AND BEING LOCATED IN DIFFERENT HALFS OF SAID SCANNING DISK, SAID FIRST AND SECOND WINDOWS EXPOSING TO VIEW COMPLEMENTARY INNER AND OUTER RING PORTIONS, RESPECTIVELY, OF SAID BASE DISK WHEN EACH SCANNING DISK IS ROTATED THROUGH ONE COMPLETE 360* CYCLE WITH RESPECT TO SAID BASE DISK, SAID INNER AND OUTER RING PORTIONS OF SAID BASE DISK BEING SUBDIVIDED INTO A NUMBER OF SECTORS RELATED TO THE NUMBER OF SAID ARCUATED SECTORS, SELECTED SECTORS OF SAID INNER RING HAVING PICTORIAL ILLUSTRATIONS PRINTED THEREIN DEPICTING THE IDENTIFICATION ARRANGEMENT FOR THE CONDITION OR PROCEDURE PRINTED IN THE ARCUATED SECTOR, RADIALLY SPACED THEREFROM, SAID SELECTED SECTORS OF SAID OUTER RING HAVING INFORMATION PRINTED THEREIN DESCRIBING THE CHARACTERISTICS OF THE PICTORIAL INFORMATION PRINTED IN THE CORRESPONDING SECTOR OF SAID INNER RING THAT IS DIAMETRICALLY SPACED THEREFROM.