Apparatus for positioning jacks in a plurality of slotted pattern wheel rings according to a predetermined pattern

摘要

Apparatus for setting jacks successively in the slots of pattern wheel rings includes a carriage to hold a paper, card or the like on which contrasting colors or other suitable markings may indicate the background and pattern of a fabric to be knitted with a plurality of differently colored yarns on a circular knitting machine. The jack setting apparatus is equipped to index a number of pattern wheel rings (one for each of said colors) and to relatively move the carriage and a viewer to successively align the color indications or other markings with the viewer. Such apparatus includes jack positioning means, operable to determine for pattern wheel jacks, a needle raising position in a slot of any ring which an operator may select according to the color or marking on the paper, card or the like aligned with said viewer, and a needle missing position in one slot in each of the other pattern wheel rings.