Machine for continuously folding over and stitching web edges

Details Machine for continuously folding over and stitching web edges Machine for continuously folding over and stitching web edges

1983-06-24

1984-05-15

Hunter, H. Hampton

Sewing

Work manipulating

Guides

112153, 11212114, D05B 3500

Patent

active

044481381

ABSTRACT:
An apparatus for folding over and stitching the longitudinally extending and transversely spaced edges of an elongated textile web has a pair of longitudinally spaced and transversely throughgoing main rolls rotatable about respective parallel axes and operated by guide and drive means that pass the web longitudinally and continuously from one of the main rolls to the other main roll in a travel direction perpendicular to the roll axes and with the web spanned tightly longitudinally between the main rolls and lying generally in a plane with its edges generally parallel. Respective stretchers transversely confronting each other between the main rolls engage the web edges for urging same transversely apart and thereby transversely stretching the web. Folders between the stretchers and the downstream main roll fold over the edges of the web and sewing devices between the folding means and the downstream main roll stitch together the folded-over web edges. The stretchers each include a plurality of rails inclined in the transport direction away from the other edge and normally frictionally engaging the goods. The rails of one edge diverge downstream from the rails of the other edge. In addition each of the stretchers has a pair of parts at least one of which is urged toward the other so that the edges of the web are gripped by the respective pair of stretcher parts.

REFERENCES:
patent: 2546831 (1951-03-01), Newell
patent: 3012603 (1961-12-01), Newsone et al.
patent: 3463482 (1969-08-01), Baron et al.

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