Self-adjusting stripping fingers

Claim 1

AN ARTICLE FORMING APPARATUS COMPRISING: A DIE MEMBER HAVING A CAVITY THEREIN; A PUNCH MEMBER MOVABLE RELATIVE TO SAID DIE MEMBER AND DIMENSIONED TO FIT WITHIN SAID CAVITY; SAID CAVITY BEING ADAPTED TO RECEIVE A SLUG OF MATERIAL WHICH, WHEN STRUCK BY SAID PUNCH MEMBER, FORMS AND ARTICLE WHICH ADHERES THERETO; AND MEANS FOR STRIPPING SAID ARTICLE FROM SAID PUNCH MEMBER; SAID MEANS INCLUDING A PLURALITY OF STRIPPING FINGERS SPACED EQUALLY ABOUT THE PERIPHERY OF THE PUNCH MEMBER, EXTENDING RADIALLY TOWARD SAID PUNCH MEMBER, AND ADAPTED TO ENGAGE THE UPPER EDGE OF AN ARTICLE ADHERED TO SAID PUNCH MEMBER; SAID MEANS ALSO INCLUDING PISTON AND CYLINDER MEANS MOUNTING EACH OF SAID STRIPPING FINGERS; SAID PISTON AND CYLINDER MEANS INCLUDING AN ELONGATED TUBULAR CYLINDER HAVING AN APERTURE IN ONE END THEREOF AND A PISTON SLIDABLE WITHIN SAID CYLINDER AND HAVING A DEPENDING PISTON ROD WHICH PROJECTS THROUGH SAID APERTURE AND BEYOND SAID CYLINDER; SAID STRIPPING FINGERS BEING MOUNTED UPON THE PROJECTING ENDS OF SAID PISTON RODS; SPRING-BIASING MEANS BENEATH SAID PISTONS EXTENDING BETWEEN THE APERTURED END OF EACH CYLINDER AND THE FACE OF EACH PISTON FROM WHICH SAID PISTON ROD DEPENDS; CONDUIT MEANS INTERCONNECTING SAID CYLINDERS ADJACENT THEIR NON-APERTURED ENDS; SAID SPRING-BIASING MEANS NORMALLY BIASING ALL OF SAID PISTONS AND THUS ALL OF SAID STRIPPING FINGERS TO THE SAME LEVEL; HYDRAULIC FLUID CONTAINED WITHIN SAID CONDUIT MEANS AND WITHIN EACH OF SAID CYLINDERS; SAID HYDRAULIC FLUID NORMALLY COMPLETELY FILLING SAID CONDUIT MEANS AND EACH OF SAID CYLINDERS ABOVE SAID PISTONS; SAID STRIPPING FINGERS BEING MOVABLE AXIALLY OF SAID PUNCH MEMBER WHEN ENGAGED BY SAID ARTICLE; SAID AXIAL MOVEMENT OF ANY ONE OF SAID STRIPPING FINGERS CAUSING A RESPONSIVE OPPOSITELY DIRECTED AXIAL MOVEMENT OF AT LEAST ONE OTHER OF SAID STRIPPING FINGERS UNTIL ALL OF SAID STRIPPING FINGERS ENGAGE SAID ARTICLE WHEREBY THEY MOVE SAID ARTICLE AXIALLY OF SAID PUNCH MEMBER TO STRIP IT THEREFROM.