Abstract: Method and apparatus for doffing fabric rolls formed on a winding shaft from a circular knitting machine. When the knitting machine is stopped after a predetermined length of knitted fabric is wound on a winding shaft, the angular position of the winding shaft with respect to the common rotational center of the knitting device and the winding mechanism is controlled by means of a particular mechanism so that the winding shaft occupies a predetermined angular position. Then the knitted fabric is cut at a position adjacent to the winding shaft. Thereafter, both ends of said winding shaft, whereon a full size fabric roll is formed, are simultaneously released from the supporting members of the winding mechanism and the fabric roll doffed from the winding mechanism is received by a receiving plate of a truck positioned at its standby position right below the winding mechanism.

Abstract: A circular knitting machine comprising a camming mechanism and a cylinder having a series of needle slots, in which a series of jacks are disposed in a manner pivotable relative to and slidable along the associated needle slots and a series of knitting needles are disposed on the upper ends of the associated jacks. Each of the jacks is provided on its opposite end portions with a lower and an upper butt, the former butt being movable in a cam track of the camming mechanism and the latter being adapted to move in front of jack holding devices. Each jack holding device is controlled by a pattern control mechanism so that it attracts the particular jacks, when they approach it, corresponding to the particular knitting needles which are not to perform the knitting operation, whereby the particular jacks are turned to bring the lower butts into their position where the influence of the raising function of the camming mechanism is not exerted on the particular jacks and hence the particular knitting needles.