Textiles: knitting – Independent-needle machines – Circular
Patent
1989-05-12
1991-02-05
Schroeder, Werner H.
Textiles: knitting
Independent-needle machines
Circular
66 752, 66221, 66222, D04B 1578
Patent
active
049894250
ABSTRACT:
In order to carry out the three-position selection of needles, that is, for floated stitch, retained stitch and discharged stitch, in either direction of rotation of the needles cylinder of a circular knitting machine with alternate motion for the production of socks with inlay patterns a cylinder is provided with needles and underneedles, and with pusher jacks provided with a heel (7,8) at both ends and engaged to a rear, centrifugal action spring. Two oscillating selectors vertically superimposed and symmetrically disposed with respect to the horizontal separation line are provided. Two electromagnets are provided vertically superimposed for the selection of said oscillating selectors. Such selection apparatus it is possible to reduce the diameter of the needles cylinder to less than 4" with a fineness above 120 needles and to work at a speed higher than the one presently allowed.
REFERENCES:
patent: 3534566 (1970-10-01), Farmer et al.
patent: 3971233 (1976-07-01), Amaya et al.
patent: 3987646 (1976-10-01), Knourek et al.
patent: 4023383 (1977-05-01), Klinger
patent: 4686839 (1987-08-01), Schmid
patent: 4738123 (1988-04-01), Tibbals, Jr.
patent: 4739636 (1988-04-01), Manini
patent: 4793159 (1988-12-01), Sawazaki
Disc Selection Systems, Borowy and Knapton Knitting Times, Feb. 1976, vol. 45, No. 6, pp. 41-53.
Calvert John J.
Schroeder Werner H.
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