Needle selector device for multi-system knitting machine

A needle selector device for use in a multi yarn feed knitting machine operating by the three-position method, with vertically stacked angularly movable sliders, and having pattern bars mounting steering butts, swivel bars engaging the pattern bars and in their turn articulately connected to the knitting needles, the sliders co-acting with the steering butts of the pattern bars and thereby determining the movement of the knitting needles into their floating, tucking or knitting position, characterized in that for each yarn feed station in the knitting machine there is provided a single row of said vertically stacked angularly movable sliders, said sliders being formed identically to one another and being movable about a common axis and being adapted to be selectively adjusted and immobilised in one of three operative positions thereof, the first operative position corresponding to the floating position, the second operative position corresponding to the tucking position and the third operative position corresponding to the knitting position.