Film folding device

Details Film folding device Film folding device

1979-05-14

1981-12-08

Burr, Edgar S.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

493269, 493447, 493456, B65H 4522

Patent

active

043045618

ABSTRACT:
Film running one direction is folded along a longitudinal folding line by a folding plate and folding blade. The folding plate has a front edge and an inclined edge extending in the lateral direction against the film feeding direction, the folding blade extending in an oblique direction against the film feeding direction from the apex point of said edges of the folding plate for folding the outer part of a film against the reverse side of the film. The edges of the folding plate receives the tensile force of the film along the whole width so as to avoid any concentration of tensile force.

REFERENCES:
patent: 229479 (1880-06-01), Scholfield
patent: 1717120 (1929-06-01), Richardson
patent: 2094866 (1937-10-01), Aeschbach
patent: 2362771 (1944-11-01), Remington
patent: 2730357 (1956-01-01), Deichmann
patent: 2900934 (1959-08-01), Judelson

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