Trigonometrical computer

Claim 1

A COMPUTER DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A PLURALITY OF CIRCULAR DISKS, PIVOT MEANS ROTATABLY SECURING THE DISKS TOGETHER TO CONSTITUTE A LAMINATED ASSEMBLY, EACH OF SAID DISK HAVING A RADIALLY EXTENDING WINDOW FREE OF ANY INDICIA THEREON, THE RADIAL WINDOWS IN THE SEVERAL DISKS BEING DISPOSABLE IN REGISTRATION WITH EACH OTHER BY ROTATION OF THE DISKS WITH RESPECT TO EACH OTHER, THE TWO OUTERMOST DISKS ON OPPOSITE SIDES OF SAID ASSEMBLY EACH HAVING INDICIA THEREON SPACED RADIALLY OF THE DISK AND LOCATED ADJACENT THE RADIAL WINDOW THEREOF, EACH OF THE INNER DISKS BETWEEN THE OUTERMOST DISKS HAVING TABLES OF TRIGONOMETRIC FUNCTIONS THEREON, SAID TABLES BEING ARRANGED IN A PLURALITY OF CONCENTRIC TRACKS, WITH NUMBERS IN EACH TRACK EXTENDING RADIALLY OF THE INNER DISK AND ALIGNED WITH NUMBERS IN EACH OF THE OTHER TRACKS RADIALLY OF THE INNER DISK, SAID TRACKS BEING ALIGNED WITH THE RESPECTIVE INDICIA ON THE OUTERMOST DISKS, WHEREBY A RADIAL LINE OF NUMBERS ON ANY INNER DISK CAN BE READ THROUGH REGISTERING RADIAL WINDOWS OF ALL OTHER OVERLAYING DISKS, THE OUTERMOST DISKS EACH HAVE A CENTRAL CIRCULAR SECTION AND A PLURALITY OF SECTORS EXTENDING RADIALLY OUTWARDLY OF THE CENTRAL CIRCULAR SECTION, SAID SECTORS BEING SPACED APART CIRCUMFERENTIALLY OF THE OUTERMOST DISKS EXPOSING ADJACENT INNER DISKS TO FACILITATE ROTATION OF SAID INNER DISKS, SAID INNER DISKS EACH HAVING A PERIPHERAL PROJECTION EXTENDING RADIALLY OUTWARDLY AND LOCATED THE SAME ANGULAR DISTANCE FROM THE RADIAL WINDOW ON EACH OF THE INNER DISKS TO FACILITATE ALIGNING THE RADIAL WINDOWS OF THE INNER DISKS WITH THE RADIAL WINDOWS OF THE OUTERMOST DISKS, SAID RADIALLY OUTWARDLY EXTENDING SECTORS HAVING ADDITIONAL INDICIA FOR USE IN INCREASING AND DECREASING VALUES EXPONENTIALLY.