Printing device

Claim 1

A PRINTING DEVICE COMPRISING: A RIGID TYPE HOLDER HAVING A FIRST DOWNWARDLY EXTENDING SLOT FORMED IN ONE FACE THEREOF, SAID FIRST SLOT HAVING OPPOSITE SIDE WALLS AND A BOTTOM WALL, THE SIDE WALLS OF SAID FIRST SLOT RESPECTIVELY HAVING SECOND AND THIRD SLOTS FORMED THEREIN INTERMEDIATE THEIR ENDS AND EACH HAVING OPPOSITE SIDE WALLS AND A BOTTOM WALL, THE BOTTOM WALL OF SAID FIRST SLOT DEFINING AN UNDERCUT PORTION WITH THE ADJACENT SIDE WALLS OF SAID SECOND AND THIRD SLOTS, SAID SECOND AND THIRD SLOTS EXTENDING TRANSVERSELY WITH RESPECT TO SAID FIRST SLOT AND BEING IN ALIGNMENT; AND A SEGMENT OF TYPE FORMED OF RESILIENT MATERIAL AND HAVING A GENERALLY H-SHAPED CROSS-SECTION, SAID SEGMENT HAVING A BASE LEG WITH ITS ENDS RESPECTIVELY REMOVABLY SEATED IN SAID SECOND AND THIRD SLOTS AND NORMALLY ENGAGING THE SIDE AND BOTTOM WALLS THEREOF, THE OUTER SURFACE OF SAID BASE LEG BEING NORMALLY SPACED FROM SAID BOTTOM WALL OF SAID FIRST SLOT, SAID SEGMENT HAVING A BAR PORTION JOINED THERETO AND EXTENDING UPWARDLY FROM SAID BASE LEG BETWEEN SAID SIDE WALLS OF SAID FIRST SLOT, SAID SEGMENT HAVING A TOP LEG JOINED TO SAID BAR PORTION AND NORMALLY HAVING ITS OUTER FACE SPACED OUTWARDLY FROM AND NORMALLY HAVING ITS OUTER FACE SPACED OUTWARDLY FROM SAID ONE FACE OF SAID TYPEHOLDER, SAID TOP LEG BEING SHORTER THAN SAID BASE LEG WITH ITS ENDS RESPECTIVELY SPACED FROM SAID SIDE WALLS OF SAID FIRST SLOT, SAID BASE LEG DEFORMING DOWNWARDLY INTO SAID UNDERCUT PORTION AND THE ENDS OF SAID BASE LEG RESPECTIVELY SLIDING IN SAID SECOND AND THIRD SLOTS AWAY FROM THE BOTTOM WALLS THEREOF RESPONSIVE TO APPLICATION OF DOWNWARD FORCE ON SAID TOP LEG.