Textiles: knitting – Independent-needle machines – Circular
Patent
1990-01-16
1992-03-17
Schroeder, Werner H.
Textiles: knitting
Independent-needle machines
Circular
66125R, D04B 900
Patent
active
050957198
ABSTRACT:
A method and apparatus for knitting intarsia design jersey knit fabric on a circular knitting machine capable of knitting single jersey fabric. The method includes the steps of raising groups of contiguous needles on the needle cylinder, drawing down, one after the other in a first direction, the raised needles to form a new stitch loop in the hook of each needle as it is drawn down and to shed the old stitch loop into the jersey fabric being knitted, while drawing down the needles of the first group of needles in the first direction, raising needles of the next group of needles and drawing down, one after the other the needles of such next group after all of the needles of the first group are drawn down until all of the needles are drawn down, new stitch loops are formed and the old stitch loops are shed, continuing the movement in the first direction until the needles are cleared and the yarn feed is repositioned and then reversing the direction of movement, the raising of the needle groups, the drawing down and the clearing of the needles and the yarn feed is repositioned, cycle after cycle, until the knitting is completed. The apparatus includes pushers for raising the needles, a knitting cam for drawing the raised needles, one after the other, down, yarn feeds for feeding yarn to the raised needles, pusher cams for raising and lowering the pushers, a reciprocating drive for reciprocating the knitting cam, back and forth, around the cylinder to draw the needles down after they are raised by the pushers, a drive for repositioning the yarn feeds and for reversing the direction of reciprocation of the knitting cam after the raised needles of a first and a next group of needles have been raised and drawn down, the knitting cam has cleared such needles and the yarn feeds have been repositioned.
REFERENCES:
patent: 585496 (1897-06-01), Winlund
patent: 1499144 (1924-06-01), Barth
patent: 1594426 (1926-08-01), Mankin
patent: 1690729 (1928-11-01), Jones
patent: 1843641 (1932-02-01), Jones
patent: 1951102 (1934-03-01), Mills
Calvert John J.
Schroeder Werner H.
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