Endless blank forms

Claim 1

A CONTINUOUS COMPOSITE BLANK COMPRISING, IN COMBINATION, A PLURALITY OF SUPERIMPOSED WORKING AND COPY ING WEBS, SAID WEBS BEING FORMED WITH PUNCHED-OUT TONGUES SPACED IN LONGITUDINAL DIRECTION FROM EACH OTHER AND EACH INTEGRAL AT ONE END THEREOF WITH THE RESPECTIVE WEB AND BENT OUT OF THE PLANE OF THE WEB TO EXTEND THROUGH THE COMPLEMENTARY APERTURE FORMED BY THE PUNCHED-OUT TONGUE ON THE ADJACENT WEB TO THUS FASTEN THE WEBS TO EACH OTHER, EACH OF SAID TONGUES HAVING A LONGITUDINALLY EXTENDING LEG INTERGRAL AT ONE END THEREOF WITH THE RESPECTIVE WEB AND TAPERING IN WIDTH TOWARD ITS OTHER END, AND A PAIR OF ABUTTING PORTIONS INTEGRAL WITH SAID OTHER END OF SAID LEGS AND PROJECTING TO OPPOSITE SIDES OF SAID LEG NORMAL TO THE ELONGATION THEREOF, SAID LEG BEING ADAPTED TO EXTEND THROUGH SAID COMPLEMENTARY APERTURE AND SAID ABUTTING PORTIONS BEING ADAPTED TO EXTEND UPWARDLY OF THE WEB IN WHICH SAID APERTURE IS FORMED, SAID ABUTTING PORTIONS HAVING RESPECTIVE SHOULDERS ADJACENT THE JUNCTION OF SAID ABUTTING PORTIONS WITH SAID OTHER END OF SAID LEG AND ADAPTED TO ENGAGE A CIRCUMFERENTIAL EDGE PORTION OF AN APERTURE FORMED IN A WEB OTHER THAN THE WEB WITH WHICH SAID TONGUE IS INTEGRAL SO THAT, WHEN SAID WEBS SHIFT POSITION RELATIVE TO ONE ANOTHER IN LONGITUDINAL DIRECTION OF SAID LEG, SAID SHOULDERS WILL ENGAGE SAID CIRCUMFERENTIAL EDGE PORTION OF SAID APERTURE AND SAID ABUTTING PORTIONS WILL BE DRAWN AGAINST SAID CIRCUMFERENTIAL EDGE PORTION SO AS TO OVERLIE THE SAME AND TO PREVENT SEPARATION OF SAID WEBS.