Apparatus for folding web-shaped member

Details Apparatus for folding web-shaped member Apparatus for folding web-shaped member

1984-09-11

1987-01-20

Larson, Lowell A.

Manufacturing container or tube from paper; or other manufacturi

With cutting, breaking, tearing, or abrading

And with bending

493410, 493437, 29 33K, 412 33, 412 38, B05B 114

Patent

active

046378120

ABSTRACT:
An apparatus for folding a web of plastic film at predetermined locations and in a Z-shaped manner. The apparatus, by use of a mechanism for supplying the web material, has a pair of film feeding arms supplying the web material to the folded end portions in such a manner that the web material is pressed from front and rear surfaces different from each other, guided and supplied to the folded end portions, the web material is alternately guided around folded end holding members linearly movable at least from one side in the widthwise direction of the web material out of and into the respective folded end portions.

REFERENCES:
patent: 1217668 (1917-02-01), Trombower
patent: 1768534 (1930-07-01), Aiken
patent: 4227684 (1980-10-01), Brocklehurst
patent: 4281445 (1981-08-01), Barber et al.
patent: 4311228 (1982-01-01), Moltrasio
patent: 4507109 (1985-03-01), Meschi

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