US3699782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knitting machines, especially flat machines
Assignee: H Stoll GmbH and Co KG
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Filing: 1970-12-15
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Granted: 1972-10-24
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Expires: 1990-12-15
Abstract
Abstract In a flat knitting machine with needle-actuating jacks mounted in the needle bed tricks, each with a working or operating butt acted on by the needle cams or lock parts for control of the needle movements, each jack is made as an elastically flexible rod or bar supported at both ends, on which a presser element can act, and the working butt of each jack is disposed in the area of maximum bending, such that it is moved out of range of the cam parts when the jack is bent. The jack is coupled with its associated needle so that the needle does not have to have a working butt of its own and necessarily must follow the movement of the jack in the needle trick, in either direction. For bending the jacks, presser jacks can be provided, or there can be provided an articulated slide or pusher on a selector jack, the slide or pusher having a wedge-shaped end which cooperates with a stationary oblique surface.
Inventors
- 👤 Wilhelm Hadam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:12
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/66; D04B15/68; D04B15/70
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
193 words
In a knitting machine, especially a flat knitter of the type having jacks borne in the needle tricks of the needle beds, the jacks being operatively coupled to the needles and having working butts that can be acted upon by the needle lock parts of the machine for control of needle movement, the improvement wherein each jack comprises an elastically flexible rod supported at both ends above the base of the needle trick, on which flexible rod a presser member can act, the working butt of each jack being disposed in the area of maximum flexibility of the jack such that when the jack is bent the working butt is out of the range of the needle cam parts, a presser member for acting on each needleactuating jack so as to selectively move its butt into or out of range of the needle cam parts, said presser member being pivotably borne near the needle bed such that a pivotable portion thereof can act on the associated jack, presser cam parts for actuating the presser members to in turn actuate the jacks, and resilient means urging the presser members pivotably away from the jacks.
Claim 2
Dependent Claim
193 words
In a knitting machine, especially a flat knitter of the type having jacks borne in the needle tricks of the needle beds, the jacks being operatively coupled to the needles and having working butts that can be acted upon by the needle lock parts of the machine for control of needle movement, the improvement wherein each jack comprises an elastically flexible rod supported at both ends above the base of the needle trick, on which flexible rod a presser member can act, the working butt of each jack being disposed in the area of maximum flexibility of the jack such that when the jack is bent the working butt is out of the range of the needle cam parts, a presser member for acting on each needleactuating jack so as to selectively move its butt into or out of range of the needle cam parts, said presser member being pivotably borne near the needle bed such that a pivotable portion thereof can act on the associated jack, presser cam parts for actuating the presser members to in turn actuate the jacks, and resilient means urging the presser members pivotably away from the jacks.
Claim 3
Dependent Claim
85 words
Apparatus as claimed in claim 1, further comprising intermediate jacks each disposed to be acted on by cam parts via a control butt and moved longitudinally of its needle trick, and acted on by a presser member to be depressed for actuating the jack, each intermediate jack being provided with a wedge-shaped end for cooperation with a stationary oblique surface to secure the position of a needle-actuating jack, the operating butt of which is moved out of the range of action of the cam parts.
Claim 4
Dependent Claim
112 words
Apparatus as claimed in claim 1, further comprising a presser member for acting on each elastically flexible jack, each presser member comprising a slide pivotally connected with a selector jack, said slide being movable by said selector jack longitudinally of a needle trick and having a wedge-shaped end movable against or away from a stationary oblique surface to effect movement of the slide and its associated needle-actuating jack toward or away from the base of the needle trick, said selector jack having at least one control butt which extends into the range of action of selectively operable cam parts of the machine for effecting movement of the selector jack and its slide.
Claim 5
Dependent Claim
38 words
Apparatus as claimed in claim 2, wherein the stationary oblique surface is formed on a bar that extends in a direction that is longitudinal with reference to the needle bed and transverse with reference to the needle tricks.
Claim 6
Dependent Claim
38 words
Apparatus as claimed in claim 3 wherein the stationary oblique surface is formed on a bar that extends in a direction that is longitudinal with reference to the needle bed and transverse with reference to the needle tricks.
Claim 7
Dependent Claim
41 words
Apparatus as claimed in claim 1 wherein said elastically flexible jack rod is pivotally connected at one end to its associated needle, and is supported at its other end by a supporting butt bearing on the base of the needle trick.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |