Method for printing matrixes

Abstract

Abstract A METHOD AND APPARATUS FOR PRODUCING A MULT-ELEMENT CASTING WHICH, IN COMPOSITE FORM, YIELDS AN EMBOSED OUTLINE USEFUL IN THE PREPARATION OF FLEXIBLE STAMPS IS DISCLOSED. THE METHOD AND APPARATUS IS PARTICULARLY APPLICABLE TO ECONOMICALLY PRODUCING A PLURALITY OF INSPECTOR STAMPS WHEREIN ONE PARTICULAR PORTION OF THE DESIGN IS REPEATED NUMEROUS TIMES AND ANOTHER PORTION OF THE DESIGN IS VARIED IN A SERIES OF ALPHA-NUMERIC DESIGNATIONS SUCH AS AN INSPECTOR NUMBER, TO LIST A TYPICAL EXAMPLE. A PANTOGRAPH MACHINE IS UTILIZED TO ENGRAVE FROM A SOFT MATERIAL, IS OTHERWISE LEFT UNENGRAVED. AN ENGRAVED PLATE IS HELD IN A JIG FOR INTRODUCTION INTO A STANDARD CASTING MACHINE. THE AREAS ON THE DESIGN WHICH WILL ORDINARILY RECEIVE THE VARIABLE PORTION SUCH AS THE INSPECTOR NUMBERS IS OUTLINED BY AN ENGRAVING OPERATION AT A LESSER DEPTH, BUT IS OTHERWISE LEFT UNENGRAVED. AN ENGRAVED PLATE IS HELD IN A JIG FOR INTRODUCTION INTO A STANDARD CASTING MACHINE. A CAST SLUG IS OBTAINED FROM THE MACHINE WHICH SLUG INCLUDES AN EMBOSSED DESIGN OF THE PORTION COMMON TO THE DESIRED STAMP, AND FURTHER INCLUDES HOLES IN THE AREA WHERE THE VARIABLE PORTIONS OF THE STAMP ARE TO BE LOCATED. THE VARIABLE PORTIONS (I.E., INSPECTOR NUMBERS) FOR THE STAMP ARE SET UP FROM ORDINARY PRINT TYPE AND ARE CAST IN A SEPARATE CASTING OPERATION. THE CASTING FOR THE COMMON DESIGN PORTION HAS DIMENSIONS SUCH THAT WHEN IT IS "HIGH-SLUGGED" WITH THE SECOND LEAD CASTING OF NORMAL PRINT TYPE, A COMPOSITE OF THE TWO COMPLETES THE DESIRED STAMP DESIGN. THE COMBINED LEAD CASTING ARE PLACED INTO A CHASE AND A MATRIX IS FORMED FROM THE CHASE. A NORMAL VULCANIZING POCESS SUPPLIES A RUBBER INSPECTOR FROM THE MATRIX.

Inventors

• 👤 Frederic S Geary

Bibliographic Details