Photographic apparatus

Claim 1

A PHOTOGRAPHIC VIEWING AND REPRODUCING APPARATUS, COMPRISING A DARK CHAMBER, MEANS FOR SUPPLYING TO SAID DARK CHAMBER PHOTOSENSITIVE SHEET MATERIAL IN THE FORM OF AN ELONGATE WEB, MEANS FOR HOLDING A PORTION OF SAID WEB IN A FOCAL PLANE IN SAID DARK CHAMBER, A VIEWING SCREEN DISPOSED EXTERNALLY OF SAID DARK CHAMBER, LIGHT RAY PROJECTING MEANS, MEANS FOR HOLDING A TRANSPARENCY IN THE PATH OF LIGHT RAYS FROM SAID PROJECTING MEANS, MEANS DISPOSED TO PROJECT LIGHT RAYS FROM SAID PROJECTING MEANS ONTO SAID VIEWING SCREEN TO FORM AN IMAGE THEREON, AN OPAQUE MASK THAT IS MOVABLE INTO THE PATH OF LIGHT RAYS FROM SAID LIGHT PROJECTING MEANS TO PERMIT ADJUSTMENT OF THE SIZE OF THE IMAGE ON THE VIEWING SCREEN TO CORRESPOND TO A DESIRED SIZE OF A PHOTOGRAPHIC REPRODUCTION THEREO, MEANS MOUNTED TO BE MOVABLE INTO A POSITION TO INTERCEPT THE LIGHT RAYS PROJECTED THROUGH A TRANSPARENCY AND PAST SAID MASK TO DIVERT THEM INTO SAID DARK CHAMBER, MEANS TO DIRECT THE DIVERTED LIGHT RAYS ONTO SAID FOCAL PLANE TO EXPOSE AT LEAST A PART OF SAID PHOTOSENSITIVE MATERIAL THEREIN TO FORM A LATENT PHOTOGRAPHIC REPRODUCTION HAVING THE DESIRED SIZE, MEANS TO TRANSPORT THE EXPOSED PART OF SAID SHEET MATERIAL FROM SAID FOCAL PLANE WHILE SIMULTANEOUSLY DRAWING AN UNEXPOSED PORTION OF THE WEB OF EQUAL SIZE INTO THE FACAL PLANE, AND MEANS TO SEVER THE EXPOSED PART OF THE WEB FROM THE UNEXPOSED REMAINDER ALONG A LINE OF SEVERANCE WHEN SAID UNEXPOSED PORTION IS IN SAID FOCAL PLANE, SAID MASK BEING DISPOSED ALWAYS TO REDUCE THE SIZE OF THE IMAGE IN A DIRECTION TOWARD THE LINE OF SEVERANCE.