Warp feeding device for circular knitting machine

A wrap yarn feeding device for wrapping walewise extending yarns about selected groups of needles of a circular series of needles in a circular knitting machine of the type including a rotary needle cylinder, said wrap yarn feeding device comprising a radially slotted dial coaxial and rotatable with said needle cylinder, first and second cooperating sliders supported for radial sliding movement in the slots of said dial, a yarn wrapping arm having an inner end pivotably supported about a vertical axis by said second slider, said wrapping arm having an outer end including yarn guide means to receive and to wrap the yarn about said selected group of needles, said second slider being operative to move said wrapping arm in a radial path extending across the needle circle, said first slider being operative to move said wrapping arm in an arcuate path about its axis, and pattern means in said dial for imparting such operative movement to said first and second sliders.