Gelatine-transfer engraving machine

Abstract

Abstract ALONG VERTICAL GUIDES AND FOR APPLYING A PREDETERMINED PRESSURE FROM SAID ROLLER ONTO THE CYLINDER TO BE ENGRAVED. DRIVING CONTROL MEANS ARE ASSOCIATED WITH THE PRESSURE ROLLER IN ORDER TO ROTATE SAID ROLLER, AND A FEED TABLE IS INTENDED TO RECEIVE A LAYER OF LIGHT-EXPOSED GELATINE CARRIED BY A PLASTIC FILM AND TO PERMIT THE INTRODUCTION OF THE FILM BETWEEN THE CYLINDER AND THE PRESSURE ROLLER FOR THE PURPOSE OF WINDING AND CAUSING THE FILM TO ADHERE AROUND THE CYLINDER BY THE DRIVING AND PRESSING ACTION OF THE PRESSURE ROLLER. APPARATUS FOR TRANSFERRING A LAYER OF EXPOSED GELATINE SUPPORTED ON A FILM OF PLASTIC MATEIAL, ESPECIALLY OF POLYESTER, ONTO A CYLINDER TO BE ENGRAVED. THE MACHINE COMPRISES A RIGID FRAME AND BEARINGS SUPPORTING A CYLINDER TO BE ENGRAVED. THE BEARINGS ARE MOVABLY MOUNTED TRANSVERSELY ON THE FRAME BETWEEN A PREDETERMINED WORKING POSITION AND A DISPLACED POSITION FOR CLEANING TO A PRESSURE ROLLER ADAPTED TO BE APPLIED AGAINST THE CYLINDER, IS SUPPORTED BY BEARINGS MOUNTED IN VERTICAL GUIDES ARRANGED VERTICALLY IN LINE WITH THE WORKING POSITION OF THE BEARINGS OF THE CYLINDER AND PRESSURE-CONTROL MEANS ARE PROVIDED FOR LIFTING AND LOWERING THE PRESSURE ROLLER

Inventors

• 👤 Charles Walter Gemperle

Bibliographic Details