Method of making three dimensional models

Claim 1

THE METHOD OF MAKING A THREE DIMENSIONAL MODEL OF A SUBJECT HAVING PARTS THEREOF OF DIFFERENT HEIGHTS BY PROVIDING A PAIR OF GRAPHIC ILLUSTRATIONS OF THE SUBJECT, COLORING WHITE THE AREAS REPRESENTING THE HIGHEST HEIGHTS IN ONE OF SAID ILLUSTRATIONS, AND COLORING BLACK THE REMAINING PORTIONS OF SAID ONE ILLUSTRATION, COLORING WHITE THE AREAS REPRESENTING THE HIGHEST AND ALSO THE INTERMEDIATE HEIGHTS IN THE OTHER OF SAID ILLUSTRATIONS, AND COLORING BLACK THE REMAINING PORTIONS OF SAID OTHER ILLUSTRATION, PHOTOGRAPHING THE PAIR OF ILLUSTRATIONS ONTO FILMS TO OBTAIN A PAIR OF PHOTOGRAPHIC TRANSPARENCIES ONE OF WHICH REPRESENTS BY TRANSPARENT PORTIONS ON AN OPAQUE BACKGROUND THE HIGHEST HEIGHTS OF SAID PARTS AND THE OTHER OF WHICH REPRESENTS ALSO BY TRANSPARENT PORTIONS ON AN OPAQUE BACKGROUND THE HIGHEST HEIGHTS AND ALSO THE INTERMEDIATE HEIGHTS OF SAID PARTS, PROVIDING A SHEET OF MATERIAL COMPOSED OF A PLURALITY OF LAMINATIONS EACH OF WHICH IS NON-RESISTIVE TO CERTAIN ACIDS AND RESISTIVE TO CERTAIN OTHER ACIDS, COATING SAID SHEET WITH A PHOTOSENSITIVE EMULSION WHICH IS ACID RESISTANT THEREBY PROVIDING A PHOTOGRAPHIC PLATE, EXPOSING SAID PHOTOGRAPHIC PLATE TO A LIGHT SOURCE THROUGH THE SAID ONE TRANSPARENCY REPRESENTING THE HIGHEST HEIGHT, DEVELOPING SAID PLATE THEREBY CAUSING THE CODING ON SAID ONE TRANSPARENCY TO BE REPRESENTED AS UNPROTECTED AND PROTECTED AREAS ON SAID PLATE, ETCHING THE UNPROTECTED AREAS THE DEPTH OF THE TOP LAMINATION OF SAID SHEET, THE SUCCESSIVE LAMINATING OF SAID SHEET BEING RESISTANT TO THE ACID USED IN ETCHING SAID TOP LAMINATION, WASHING AWAY THE EMULSION REMAINING ON THE PROTECTED AREA, RECOATING SAID SHEET WITH SAID PHOTOSENSITIVE EMULSION THEREBY PROVIDING A SECOND PHOTOGRAPHIC PLATE, EXPOSING SAID SECOND PHOTOGRAPHIC PLATE TO A LIGHT SOURCE THROUGH THE SAID OTHER TRANSPARENCY REPRESENTING BOTH SAID HEIGHTS, DEVELOPING SAID SECOND PLATE THEREBY CAUSING THE CODING ON SAID OTHER TRANSPARENCY TO BE REPRESENTED AS UNPROTECTED AND PROTECTED AREAS ON SAID SECOND PHOTOGRAPHIC PLATE, ETCHING THE UNPROTECTED AREAS ON SAID SECOND PLATE THE DEPTH OF THE NEXT LAMINATION OF SAID SHEET, THE TOP LAMINATION AND SUCCESSIVE LAMINATIONS BEING RESISTANT TO THE ACID USED IN ETCHING THE SAID NEXT LAMINATION, AND WASHIN AWAY THE EMULSION REMAINING OF SAID SECOND PLATE.

Claim 2

THE METHOD OF MAKING A THREE DIMENSIONAL MODEL OF A SUBJECT HAVING PARTS THEREOF OF DIFFERENT HEIGHTS BY PROVIDING A PAIR OF GRAPHIC ILLUSTRATIONS OF THE SUBJECT, COLORING WHITE THE AREAS REPRESENTING THE HIGHEST HEIGHTS IN ONE OF SAID ILLUSTRATIONS, AND COLORING BLACK THE REMAINING PORTIONS OF SAID ONE ILLUSTRATION, COLORING WHITE THE AREAS REPRESENTING THE HIGHEST AND ALSO THE INTERMEDIATE HEIGHTS IN THE OTHER OF SAID ILLUSTRATIONS, AND COLORING BLACK THE REMAINING PORTIONS OF SAID OTHER ILLUSTRATION, PHOTOGRAPHING THE PAIR OF ILLUSTRATIONS ONTO FILMS TO OBTAIN A PAIR OF PHOTOGRAPHIC TRANSPARENCIES ONE OF WHICH REPRESENTS BY TRANSPARENT PORTIONS ON AN OPAQUE BACKGROUND THE HIGHEST HEIGHTS OF SAID PARTS AND THE OTHER OF WHICH REPRESENTS ALSO BY TRANSPARENT PORTIONS ON AN OPAQUE BACKGROUND THE HIGHEST HEIGHTS AND ALSO THE INTERMEDIATE HEIGHTS OF SAID PARTS, PROVIDING A SHEET OF MATERIAL COMPOSED OF A PLURALITY OF LAMINATIONS EACH OF WHICH IS NON-RESISTIVE TO CERTAIN ACIDS AND RESISTIVE TO CERTAIN OTHER ACIDS, COATING SAID SHEET WITH A PHOTOSENSITIVE EMULSION WHICH IS ACID RESISTANT THEREBY PROVIDING A PHOTOGRAPHIC PLATE, EXPOSING SAID PHOTOGRAPHIC PLATE TO A LIGHT SOURCE THROUGH THE SAID ONE TRANSPARENCY REPRESENTING THE HIGHEST HEIGHT, DEVELOPING SAID PLATE THEREBY CAUSING THE CODING ON SAID ONE TRANSPARENCY TO BE REPRESENTED AS UNPROTECTED AND PROTECTED AREAS ON SAID PLATE, ETCHING THE UNPROTECTED AREAS THE DEPTH OF THE TOP LAMINATION OF SAID SHEET, THE SUCCESSIVE LAMINATING OF SAID SHEET BEING RESISTANT TO THE ACID USED IN ETCHING SAID TOP LAMINATION, WASHING AWAY THE EMULSION REMAINING ON THE PROTECTED AREA, RECOATING SAID SHEET WITH SAID PHOTOSENSITIVE EMULSION THEREBY PROVIDING A SECOND PHOTOGRAPHIC PLATE, EXPOSING SAID SECOND PHOTOGRAPHIC PLATE TO A LIGHT SOURCE THROUGH THE SAID OTHER TRANSPARENCY REPRESENTING BOTH SAID HEIGHTS, DEVELOPING SAID SECOND PLATE THEREBY CAUSING THE CODING ON SAID OTHER TRANSPARENCY TO BE REPRESENTED AS UNPROTECTED AND PROTECTED AREAS ON SAID SECOND PHOTOGRAPHIC PLATE, ETCHING THE UNPROTECTED AREAS ON SAID SECOND PLATE THE DEPTH OF THE NEXT LAMINATION OF SAID SHEET, THE TOP LAMINATION AND SUCCESSIVE LAMINATIONS BEING RESISTANT TO THE ACID USED IN ETCHING THE SAID NEXT LAMINATION, AND WASHIN AWAY THE EMULSION REMAINING OF SAID SECOND PLATE.