Tube forming apparatus

B - Operations – Transporting – 29 – D

Patent

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154/144, 18/928

B29D 23/00 (2006.01) B26F 1/38 (2006.01) F16L 59/02 (2006.01)

Patent

CA 1138166

8 ABSTRACT OF THE DISCLOSURE Apparatus for forming a tube, preferably of flex- ible thermally insulating material, comprises a cutting head with a pair of concentric cutting edge which cooperates with a presser head to cut rings of material from a sheet presented to the cutting head. The rings are stacked up on a guide bar and sprayed with a coating composition to consolidate them into a tube which may be collected on a take-up drum in a continuous manner.

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