US3748871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling pattern drums particularly in circular knitting machine
Assignee: Wirkmaschinenbau Karl Marx Veb
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Filing: 1972-03-31
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Granted: 1973-07-31
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Expires: 1992-03-31
Abstract
Abstract A pattern setting memory device controls a vertical stepped slider, and thereby controls a horizontal adjustment slider, which in turn controls a slide rotor element. The sliding motion of the latter element is transmitted, by reciprocating cam motions, to linkage for the setting of plunger members. By means of this linkage and of the plunger members, a unidirectional continuous rotation and memory-controlled sliding of the slide rotor element produces an intermittent forward or backward rotation of the control star. This star, by gearing, correspondingly rotates a pattern drum for the selection of knitting needles in a pattern knitting process.
Inventors
- 👤 F Ludwig
- 👤 W Tschischke
- 👤 K Bannehr
- 👤 D Rothe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:24
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/66; D04B15/665
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
65 words
In control apparatus for the control star and pattern drum of a pattern knitting machine: a system of plungers; rocker levers pivotally supporting the plungers; a link pivoted to each rocker lever, for rocking the same; guide pin means for raising and lowering the link means; and a slider cam for slidingly raising and lowering the guide pin means in a succession of definite steps.
Claim 2
Dependent Claim
65 words
In control apparatus for the control star and pattern drum of a pattern knitting machine: a system of plungers; rocker levers pivotally supporting the plungers; a link pivoted to each rocker lever, for rocking the same; guide pin means for raising and lowering the link means; and a slider cam for slidingly raising and lowering the guide pin means in a succession of definite steps.
Claim 3
Dependent Claim
45 words
A system according to claim 1 wherein the slider cam has a plurality of surfaces following one another in the manner of stair steps with risers therebetween, and the guide pin means comprises at least one pin in sliding contact with such steps and rigid.
Claim 4
Dependent Claim
11 words
A system according to claim 2 wherein said risers are inclined.
Claim 5
Dependent Claim
43 words
A system according to claim 1 also having guide bolt means projecting from each slider cam, and control means for sliding said guide bolt means and thereby said slider cam to raise and lower the guide pin means, links, rocker levers, and plungers.
Claim 6
Dependent Claim
28 words
A system according to claim 4 wherein the control means is movable relative to the slider cam and has oblique surfaces for impact with said guide bolt means.
Claim 7
Dependent Claim
23 words
A system according to claim 5 also haaving slider means for controlling said control means, and means for resiliently displacing said slider means.
Claim 8
Dependent Claim
24 words
A system according to claim 6 having means for locking the slider meanS and thereby the control means, and means for unlocking the same.
Claim 9
Dependent Claim
23 words
A system according to claim 7 also having step slider means for further control of said locking and unlocking of the slider means.
Claim 10
Dependent Claim
22 words
A system according to claim 8 wherein the slider means has a rigid pointed portion for contact with the step slider means.
Claim 11
Dependent Claim
25 words
A system according to claim 7 including roller bearing means on the slider means, and means for engaging the roller bearing means for said unlocking.
References Cited (Backward Citations)
US2196073A
Cited
US2611253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |