Squeeze down imprinter releasable print head means in traveling roller printing machine

Claim 1

IN A MANUAL IMPRINTING DEVICE, THE COMBINATION OF: A BASE MEANS PROVIDED WITH A SURFACE TO SUPPORT IN SUPERPOSED PREDETERMINED RELATION A DATA BEARING CARD AND AN INVOICE FORM, SAID BASE MEANS INCLUDING A PIVOTAL MOUNTING; AN IMPRINTING HEAD MEANS INCLUDING A HEAD FRAME SUPPORTED FROM SAID PIVOTAL MOUNTING AND MOVABLE TO COVERED AND UNCOVERED POSITION WITH RESPECT TO SUCH SURFACE; AN IMPRINTING ROLLER CARRIED ON SAID HEAD FRAME; ACTUATING MEANS FOR SAID ROLLER COMPRISING AN ACTUATING HANDLE EXTENDING FROM SAID HEAD FRAME AND HAVING A PIVOTAL CONNECTION THEREWITH, LINKAGE MEANS INTERCONNECTING SAID HANDLE PIVOTAL CONNECTION, SAID ROLLER, AND SAID BASE PIVOTAL MOUNTING WHEREBY MOVEMENT OF SAID ACTUATING HANDLE IN ONE DIRECTION CAUSES SAID ROLLER TO MOVE ACROSS SAID SURFACE FOR AN IMPRINTING STROK, SPRING MEANS CARRIED BY SAID HEAD FRAME NORMALLY BIASING SAID ACTUATING HANDLE TO ONE POSITION; AN ANGLE SHAPED LEVER MEMBER PIVOTALLY CONNECTED TO SAID HEAD FRAME AND PROVIDED WITH A SELECTIVELY CONTOURED SLOT, A PIN ON SAID BASE MEANS COOPERABLY RECEIVED WITHIN SAID SLOT FOR LOCKING SAID HEAD FRAME IN COVERED POSITION, AND LEVER MEMBER HAVING A CAM SURFACE AT ONE END ADAPTED TO BE ENGAGED BY SAID ROLLER LINKAGE MEANS FOR MOVING SAID LEVER MEMBER INTO UNLOCKED POSITION; A SECUREMENT LEVER PIVOTALLY CONNECTED TO SAID HEAD FRAME AND HAVING A FORWARDLY EXTENDING HOOK ARM ADAPTED TO ENGAGE SAID ACUTATING LINKAGE MEANS AT THE END OF THE IMPRINTING STROKE OF THE ROLLER TO IMMOVABLY ASSSOCIATE SAID ACUTATING HANDLE AND HEAD FRAME; SAID PIN BEING ENGAGEABLE WITH SAID SECUREMENT LEVER FOR RELEASING SAID LEVER WHEN SAID HEAD FRAME IS MOVED TO UNCOVERED POSITION WHEREBY SAID ACTUATING HANDLE MAY BE RETURNED TO ITS INITIAL POSITION AND IMPRINTING ROLLER MOVED TO ITS INITIAL POSITION WHILE SAID HEAD FRAME IS IN UNCOVERED POSITION.