Apparatus for making helically wound tubular articles

Details Apparatus for making helically wound tubular articles Apparatus for making helically wound tubular articles

1981-04-21

1983-08-30

Rimrodt, Louis

Sewing

Special machines

Tube forming

156431, 493299, D05B 3300

Patent

active

044010419

ABSTRACT:
Apparatus for making tubular articles formed of a length of material wound in helical form with contiguous edges of successive convolutions of the material joined with one another comprises a forming section made up of a plurality of guide rollers supported by a vertical arch-type frame so as to define a generally cylindrical configuration. Feed rollers propel a strip of material in a lengthwise direction through the arch of the frame and around the support provided by the guide rollers in a helical path with edges of successive convolutions of the helix abutting one another. As the material is thus in effect coiled into helical form, a sewing machine joins contiguous edges of successive convolutions to form a continuous tubular article.

REFERENCES:
patent: 3448707 (1969-06-01), Thomsen
patent: 4012272 (1977-03-01), Tiner
patent: 4198916 (1980-04-01), de Polo

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