Narrowing and widening apparatus and method for knitting machines

Claim 1

A METHOD OF FEEDING A YARN TO BE KNIT INTO CONTINUOUSLY SUCCESSIVE PARTIAL COURSES IN A CIRCULAR KNITTING MACHINE HAVING A NEEDLE CYLINDER INCLUDING CONTINUOUS ROTATION OF THE CYLINDER, CONTINUOUS ENGAGEMENT OF THE YARN WITH A YARN GUIDE MAINTAINED IN AN OPERATIVE FEEDING POSITION, MAINTAINING THE YARN BETWEEN SAID GUIDE AND THE NEEDLES OF SAID MACHINE SUBSTANTIALLY NON-FLOATING, AND WITH EACH REVOLUTION OF THE CYLINDER RELATIVE FORWARD AND SUBSTANTIALLY INSTANTANEOUS MOVEMENT OF THE YARN GUIDE WITH RESPECT TO THE CYLINDER IMMEDIATELY AFTER A PREDETERMINED DELAY AT A FIXED STATION, SUCH SUBSTANTIALLY INSTANTANEOUS MOVEMENT BEING THROUGH AN EXTENT SUFFICIENT TO ALLOW THE YARN TO BE CAST DIRECTLY FROM THE GUIDE AT LEAST TWICE ON THE SAME NEEDLES IN EACH REVOLUTION OF THE CYLINDER.