Textiles: knitting – Independent-needle machines – Circular
Patent
1974-08-09
1976-08-24
Stein, Mervin
Textiles: knitting
Independent-needle machines
Circular
D04B 1574, D04B 900
Patent
active
039759253
ABSTRACT:
An automatic positioning device for the control cams of the needle selecting cylinders on a circular knitting machine. According to the invention, the device comprises a portion fixed to the machine frame and a portion movable and rotating with the needle cylinder. The movable portion of the device comprises a cam support movable between extreme positions and cooperating with a retaining means operable by the fixed portion of the device to release, lock the cam and maintain it at predetermined positions between said extreme positions. On the other hand, the fixed portion of the device comprises a release member for said retaining means and cam positioning members, the cam release and positioning members being operated through linkages by a mechanical programming device.
In known prior art devices such as U.S. Pat. No. 3,766,753, a control cam is disclosed which has several profiles. The cam is positioned in a vertical direction in order to bring a desired profile into alignment with a cam follower.
REFERENCES:
patent: 3587253 (1971-06-01), Guell
patent: 3748871 (1973-07-01), Ludwig et al.
patent: 3766753 (1973-10-01), Schnurrer
patent: 3783640 (1974-01-01), Bourgeois
patent: 3846996 (1974-11-01), Comas
Falik Andrew M.
Nuova San Giorgio S.p.A.
Stein Mervin
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