Cam actuated reciprocating punch with means to counteract force tending to tilt punch

Claim 1

IN A PUNCHING MECHANISM, THE COMBINATION OF A RECIPROCATABLY MOUNTED PUNCH MEMBER, AT LEAST ONE BEARING GUIDE THROUGH WHICH THE PUNCH MEMBER PASSES AND OF A SIZE WHICH PERMITS THE PUNCH MEMBER TO TILT, MEANS COMPRISING A MOVING PUNCH-DRIVING ELEMENT HAVING A CAMMING FACE FOR ENGAGING SAID PUNCH MEMBER TO CAUSE RECIPROCATING THEREOF, SAID CAMMING FACE TENDING TO TILT SAID PUNCH MEMBER IN ONE DIRECTION BY APPLYING THERETO A COMPONENT OF FORCE AT AN ANGLE TO THE LENGTH OF SAID PUNCH MEMBER, A RIGID ROD EXTENDING THROUGH SAID PUNCH MEMBER AND MOVING AS A UNIT WITH SAID PUNCH MEMBER, SAID ROD EXTENDING LATERALLY AWAY FROM SAID PUNCH MEMBER, A STATIONARY SUPPORT, AND A SPRING CONNECTED TO THE LATERALLY EXTENDING PORTION OF THE SAID ROD AND TO SAID SUPPORT, SAID SPRING BEING CONNECTED BETWEEN SAID ROD AND SUPPORT AND ACTING THROUGH SAID LATERALLY EXTENDING ROD TO PROVIDE A PUNCH TILTING COMPONENT OF FORCE IN A DIRECTION OPPOSITE TO SAID FIRST MENTIONED DIRECTION TO COMPENSATE FOR SAID COMPONENT AND THEREBY TO CONSTRAIN SAID PUNCH MEMBER TO FOLLOW A LINEAR MOTION DURING PUNCHING.