Shedding apparatus for circular weaving of multi-harness fabrics

Textiles: weaving – Warp manipulation – Shedding

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Details

139 13R, 139 20, 139 97, D03C 1300, D03D 4914, D03D 3700

Patent

active

044637829

ABSTRACT:
A shedding apparatus for the circular weaving of multi-harness fabrics includes a plurality of heddle frames for weaving a multi-ply screen of the type suitable for use with a paper making machine. Each heddle frame has a warp wire from each fabric half drawn therethrough and a divider wire is located between the heddle frames and the reed. The divider wire extends across the entire width of the fabric with all of the warp wires of the upper fabric half extending above the wire divider and all of the warp wires of the lower fabric half extending beneath the wire divider so that upon weaving of one fabric half the divider wire is raised or lowered so that the warp wires of the other fabric half are urged away from the shed by the wire divider. A compensator rod may be provided between the heddle frames and the warp beam to compensate for the tension placed on warp wires due to different path lengths for the warp wires as caused by the wire divider.

REFERENCES:
patent: 763628 (1904-06-01), Petersen
patent: 2173163 (1939-09-01), Hale
patent: 2649864 (1953-08-01), Mayer, Jr. et al.
patent: 3818951 (1974-06-01), Greenwood
patent: 4046170 (1977-09-01), Juillard et al.
patent: 4174739 (1979-11-01), Rasero et al.

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