Electronic needle selecting means for circular knitting machines

Details Electronic needle selecting means for circular knitting machines Electronic needle selecting means for circular knitting machines

1974-06-26

1976-04-06

Stein, Mervin

Textiles: knitting

Independent-needle machines

Circular

66154A, D04B 900

Patent

active

039480623

ABSTRACT:
Electronic means for selective raising of the needles in circular knitting machines by the selective raising of jacks individually related to the needles in the cylinder needle slots, the jacks being of the rocking type having a fulcrum butt intermediate their ends. Alternate jacks are mechanically rocked to non-needle raising position while intervening jacks are mechanically rocked to needle raising position. A first electromagnet when selectively energized acts upon the intervening jacks at a point above their fulcrum butts to selectively rock selected ones of such jacks to non-needle raising position, while a second electromagnet when selectively energized acts upon the alternate jacks at a point below their fulcrum butts to selectively rock selected ones of such jacks to needle raising position. Those of such jacks which are in needle raising position are then mechanically raised thereby to raise their corresponding needles to knit level while those of such jacks which are in non-needle raising position are not raised thereby to cause their associated needles to remain at welt level.

REFERENCES:
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patent: 3283541 (1966-11-01), De Cerjat
patent: 3365916 (1968-01-01), Ribler et al.
patent: 3512377 (1970-05-01), Widdowson et al.
patent: 3530686 (1970-09-01), Martinetz
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patent: 3742732 (1973-07-01), Plath
patent: 3742733 (1973-07-01), Paepke
patent: 3747370 (1973-07-01), De Bolt et al.
patent: 3835669 (1974-09-01), Findlay et al.
patent: 3851500 (1974-12-01), Wolfshagen
patent: 3855819 (1974-12-01), Sawazaki
patent: 3861173 (1975-01-01), Kinkelin

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