Process for the manufacture of polygonal cardboard tube segments

Details Process for the manufacture of polygonal cardboard tube segments Process for the manufacture of polygonal cardboard tube segments

1976-07-12

1978-07-04

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

156194, 156195, 264294, 264320, 264339, B29D 2300, B29D 2312

Patent

active

040988627

ABSTRACT:
The invention concerns a process for the manufacture of paper-layer wound cardboard tube segments having a polygonal cross section, where paper tapes are first wound on a fixed spindle of circular shaped cross section and then the tube thus obtained is transformed into a polygonal cross section.

REFERENCES:
patent: 219218 (1879-08-01), Carpenter
patent: 221234 (1879-11-01), Ingersoll
patent: 871966 (1907-11-01), Stewart
patent: 988108 (1911-03-01), Kasralowicz
patent: 1219613 (1917-03-01), Winkley
patent: 1284297 (1918-11-01), Frederick
patent: 1471906 (1923-10-01), Longren
patent: 1602165 (1926-10-01), Parker
patent: 1877628 (1932-09-01), Replogle
patent: 3996086 (1976-12-01), Worrall

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