Device for producing multitubular structures

Abstract

Abstract A MULTI-TUBULAR STRUCTURE, FOR INSTANCE THE POCKETS FOR POCKET ELECTRODES, IS PRODUCED BY CONCURRENTLY MOVING TWO WEBS AT EQUAL SPEED ALONG ADACENT BUT SPACED PATHS AND CAUSING, DURING SUCH MOVING OF THE TWO WEBS, TRANSVERSELY SPACED JUXTAPOSED PORTIONS THEREOF TO COME IN CONTACT WITH EACH OTHER WHILE PREVENTING CONTACT BETWEEN THE INTERMEDIATE PORTIONS OF THE TWO WEBS. THE CONTACTING PORTIONS ARE ADHERED TO EACH OTHER, SO THAT LONGITUDINALLY EXTENDING, TRANSVERSELY SPACED ADHERING PORTIONS OF THE TWO WEBS FORM THEREBETWEEN ELONGATED POCKETS. THIS IS ACCOMPLISHED IN A DEVICE WHEREIN THE TWO SUPERPOSED WEBS ARE PASSED BETWEEN A PAIR OF FORM ROLLERS WHICH TURN ABOUT PARALLEL AXES, WHEREBY EACH OF THE FORM ROLLERS HAS A PLURALITY OF ADJACENT PERIPHERAL GROOVES SEPARATED BY ANNULAR RIMS, AND THE DISTANCE BETWEEN THE AXES OF THE FORM ROLLERS IS SUCH THAT AT THE NIP OF THE ROLLERS THE ANNULAR RIMS ARE IN CLOSE PROXIMITY SO THAT THE GROOVES BETWEEN THE RIMS WILL DEFINE A PLURALITY OF SUBSTATIALLY CLOSED PASSAGES OF THE DESIRED CROSSSECTIONS OF THE OUTER SURFACES OF THE TUBULAR PORTIONS OF THE MULTI-TUBULAR STRUCTURE. A PLURALITY OF RODS IS STATIONARILY ARRANGED SO AS TO EXTEND THROUGH THE PASSAGES WITHOUT CONTACTING THE WALLS OF THE GROOVES, AND THE TWO WEBS ARE PASSED BETWEEN THE ROLLERS THROUGH THE PASSAGES SO THAT IN THE ZONES OF THE RIMS THE WEBS WILL CONTACT EACH OTHER AND WILL BE ADHERED TO EACH OTHER BY COMPRESSION, HEAT OR IN ANY OTHER SUITABLE MANNER, WHILE THE RODS INTERPOSED BETWEEN ADJACENT JUXTAPOSED RIMS WILL FORCE THE WEB PORTIONS AGAINST THE INNER WALL OF THE GROOVES THEREBY SHAPING THE TUBULAR POCKETS.

Inventors

• 👤 Hans Denks
• 👤 Josef Sucher

Bibliographic Details