Method of manufacturing plastic lined fiber containers

Claim 1

IN THE METHOD OF MANUFACTURING PLASTIC-LINED FIBER DRUMS, THE STEPS OF: INITIALLY PROVIDING A TUBULAR SHELL MADE FROIM LAMINATED LAYERS FO FIBROUS MATERIAL AND HAVING TOP AND BOTTOM ENDS, A LOWER REINFORCING METAL CHIME STRIP DISPOSED AROUND THE SHELL AT THE BOTTOM END THEREOF WITH THE SHELL AND LOWER CHIME STRIP BEING FORMED INTO AN EXTERNAL GROOVE AND AN INTERNAL SHOULDER EXTENDING COMPLETELY AROUND THE DRUM A SHORT DISTANCE FROM THE LOWER PERIPHERAL EDGE OF THE BOTTOM END THEREOF; LINING THE INTERIOR OF SAID SHELL WITH A PLASTIC LINER SUCH THAT SAID LINER IS IN FIRM SURFACE-TO-SURFACE CONTACT WITH SAID SHELL AND FOLLOWS THE CONTOUR OF THE INTERIOR THEREOF; PLACING A BOTTOM CLOSURE HAVING A PLASTIC DISK-SHAPED LAYER WITH A LATERALLY EXTENDING DEPENDING APRON, ACROSS THE BOTTOM END OF SAID SHELL WITH SAID CLOSURE IN ABUTTING RELATIONSHIP WITH SAID INTERNAL SHOULDER AND SAID APRON IN FIRM SURFACETO-SURFACE CONTACT WITH SAID LINER ADJACENT THE LOWER PERIPHERAL EDGE OF THE BOTTOM END OF THE SHELL, SEALING SAID APRON WITH SAID LINER ADJACENT THE LOWER PERIPHERAL EDGE OF SAID SHELL; AND THEN PRESSING THE LOWER END OF THE SHELL INTO A BEAD EMBRACED BY THE BOTTOM CHIME STRIP, WITH TEH SEALED PERIPHERY OF A SAID APRON AND SAID LINER ANCHORED IN THE BEAD.