Textilma Ag

Opti Patent-, Forschungs- Und Fabrikations-ag

Anton Probst

Francisco Speich

Alfons Frohlich

A needle webbing machine which comprises two weft needles () which work simultaneously and in opposite directions on both ribbon sides, in addition to knitting needles () which are arranged on both ribbon sides. A yarn lifter () which works individually and which is used to advance a weft thread () to a weft needle (), which is open, is provided on each side of the ribbon in order to improve the production thereof.

Method and needle webbing loom in order to weave a ribbon

Ribbon loom with a weft insertion needle

A slide-fastener stringer half has a coupling coil having a row of turns defining a longitudinal passage and each formed with a coupling head, an upper leg and a lower leg extending transversely from the head and flanking the passage, and a bight extending from one of the respective legs to the other leg of the adjacent turn. A knitted tape against which the lower legs engage and from a longitudinal edge of which the heads project is formed of a plurality of outer warp chains adjacent the coil, an upper warp chain overlying both the upper and lower legs of the coils, and a lower warp chain overlying only the lower legs of the coil and extending along the passage between the upper and lower legs of the coil. Thus with this system the group of filaments forming the lower warp chain takes the place of the normally provided filling cord.

Growing community of inventors

Frick, Switzerland

Anton Probst