Textiles: knitting – Independent-needle machines – Circular
Patent
1975-04-04
1976-03-23
Feldbaum, Ronald
Textiles: knitting
Independent-needle machines
Circular
D04B 900, D04B 1574, D04B 1576, D04B 1578
Patent
active
039452239
ABSTRACT:
A needle bed is provided with laterally spaced apart longitudinally extending needle grooves in which there is slidably positioned a needle, a jack and a multiplier rocker between the jack and the needle, the rocker pivoting forwardly-rearwardly about a pintle inwardly of the bed. The jack has a contact at its forward end which contacts the rocker between the pintle and the outer rocker end and the rocker has a contact near its outer end for contacting the rear of the needle whereby forward movement of the jack pivots the rocker to cause the rocker to move the needle forwardly a greater distance than did the jack. Each jack is provided with a control butt and at least one pattern butt, each jack having plural sites at which a pattern butt can be located. The cam portion for actuating the jacks and needles has a multiple patterning raceway having longitudinally spaced apart pattern camming segments individually movable between an operative and an inoperative position. A pattern camming segment at an operative position will coact with a pattern butt at a corresponding site to move the jack forwardly sufficiently to move the corresponding needle from the welt position to the tuck position. The cam portion also has a needle butt raceway including camming for optionally moving needles forwardly from the tuck position to the clearing position and for moving each needle from its forward position rearwardly to the cast off position. The cam portion also has a jack butt raceway including camming for cooperating with the control butt on the jack for moving the jack from its rearward position sufficiently forwardly to move its corresponding needle from the cast off position to the welt position. The camming of the jack butt raceway also returns each jack from its forward position to its rearward position no later than the needle corresponding thereto is returned to the cast off position.
REFERENCES:
patent: 1737598 (1929-12-01), Lombardi
patent: 1947558 (1934-02-01), Lombardi
patent: 1970238 (1934-08-01), Kretser
patent: 1972044 (1934-08-01), Howie
patent: 2721460 (1955-10-01), Lombardi
patent: 2913887 (1959-11-01), Ducharme
patent: 3646779 (1972-03-01), Nuber et al.
patent: 3793850 (1974-02-01), Wills-Moren et al.
The Hosiery Trade Journal, July 1971, Vol. 78 No. 931, p. 114.
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