Method of making a slide fastener

Details Method of making a slide fastener Method of making a slide fastener

1975-07-21

1976-08-24

Jaudon, Henry S.

Textiles: weaving

Fabrics

Special shape

2420516C, 139 11, 139 35, D03D 4100, A44B 1942

Patent

active

039761061

ABSTRACT:
A helical series of slide fastener links is fed parallel to warp threads and the filling threads are inserted to weave the tape. The helical or meandering series of slide fastener links is extended adjacent to the zero plane of the weaving machine and is moved along a straight line and without formation of a shed during the weaving operation. At least two joining warp threads are warped which are spaced from the series of slide fastener links and disposed before the coupling surfaces thereof. Warp threads of the backing woven fabric are warped on the other side of the series of slide fastener links. Two joining warp threads lying in upper and lower sheds are formed into a first shed. The warp threads of the backing woven fabric and any remaining joining warp threads lying in a middle shed and the lower shed are formed into a second shed. A double shot for weaving the strap is inserted into the second shed and at the same time that joining warp thread of the first shed which lies in the upper shed is pushed onto a tuck needle to form a chain of loops for fixing the series of slide fastener links to the strap. The joining warp thread lying in the upper shed is then moved into the lower or middle shed during the subsequent shedding operation or operations. Any remaining joining warp threads are successively moved into the upper shed when they have participated in the formation of the second shed for weaving the strap. Selvages are formed at the respective edges of the strap.

REFERENCES:
patent: 3796237 (1974-03-01), Heidermann
patent: 3871420 (1975-03-01), Jakob
patent: 3905401 (1975-09-01), Steingruebner

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