Closure mechanism

Claim 1

IN A BAG CLOSING MACHINE EMPLOYING FLAT SHEET CLOSURE TABS, EACH OF WHICH HAS A BAG NECK CONFINING APERTURE AND A NARROW OPENING THROUGH WHICH SAID NECK MAY BE FED INTO SAID APERTURE, THE COMBINATION CONFINING A COLUMN OF SAID TABS MEANS HAVING A CHAMBER CONFINING A COLUMN OF SAID TABS IN FACE TO FACE RELATION; MEANS PROPELLING SAID COLUMN ALONG SAID CHAMBER TOWARDS AN END OF SAID MAGAZINE MEANS; A HEAD MOUNTED ON SAID END OF SAID MAGAZINE MEANS AND HAVING A SLIDEWAY COMMUNICATING WITH SAID CHAMBER AND DISPOSED TRANSVERSELY THEREOF; A SLIDE BAR SLIDABLE IN SAID SLIDEWAY AND HAVING A PASSAGE EXTENDING LENGTHWISE THEREOF AND DIMENSIONED FOR FEEDING SAIDS TABS IN EDGE-TO-EDGE TANDEM RELATION FROM SAID MAGAZINE CHAMBER AND OUT OF SAID PASSAGE AT ONE END THEREOF; AN EJECTOR SLIDABLY EXTENDING INTO THE OPPOSITE END OF SAID PASSANGER; AND MEANS FOR CYCLICALLY RECIPROCATING SAID BAR IN SAID SLIDEWAY AND SAID EJECTOR IN SAID PASSAGE TO ADVANCE TABS SEQUENTIALLY FROM SAID MAGAZINE ALONG SAID PASSAGE AND OUT OF SAID END OF SAID PASSAGE, THE FOREMOST TAB BEING SO ADVANCED IN EACH TAB FEEDING CYCLE AND BEING PLACED, BY A SUBSTANTIAL EXTENSION OF SAID BAR FROM SAID SLIDEWAY, IN A POSITION FOR INTRODUCING A BAG NECK INTO THE APERTURE OF SAID TAB, SAID TAB THEN BEING EJECTED FROM SAID PASSAGE BY A RETRACTION OF SAID SLIDE BAR RELATIVE TO SAID HEAD AND SAID EJECTOR; AND MEANS OPERATING IN TIMELY RELATION WITH SAID CYCLIC MEANS FOR FEEDING A BAG INTO THE CLOSURE APERTURE OF EACH TAB WHILE IT IS IN SAID ADVANCED POSITION AFORESAID AND BEFORE SAID TAB IS EJECTED FROM SAID PASSAGE.