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US3802228A Expired / Lapsed US ⏱️ 0.0 years remaining

Mounting means for positive yarn feeding device and stop motion on a circular knitting machine

Assignee: DURKIN WILLIAM N
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Filing: 1971-06-10
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Granted: 1974-04-09
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Expires: 1991-06-10
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Abstract

Abstract The disclosure relates to a knitting machine having a positive yarn feeding device comprising a roller and a tape running over a first portion of the roller for positively feeding yarn between the roller and the tape. The positive yarn feeding device has lever means movable to an out-of-action position in which the yarn is moved into a second portion of the roller in which it is out of engagement with the tape. A bracket which carries the feeding device is adapted to be mounted onto a support ring, the bracket having a hollow passage therethrough. Electrical switch means are operatively connected to the lever means whereby the switch means are closed when the lever means is in the out-ofaction position. Cooperating means are provided on the support ring and on the bracket for automatically connecting the switch to a power supply, which cooperating means comprise electrically conducting surfaces on the support ring and electrically conducting means extending from the switch through the hollow passage in the bracket to engage one of the conducting surfaces on the support ring, as the bracket is mounted onto the support ring. The disclosure also relates to a stop motion which is mounted on a support member of the knitting machine so that as the stop motion is mounted there is produced simultaneous electrical contact between the stop motion switch and conducting surfaces on the support member which is connected to a power supply.

Inventors

  • 👤 J Deniega

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 03:04
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/38; D04B15/48

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 285 words
In a circular knitting machine having a support ring and having a positive yarn feeding device comprising a roller and a tape running over a first portion of said roller for positively feeding yarn between said roller and said tape, said feeding device having lever means movable to an out-of-action position in which the yarn is moved onto a second portion of the roller in which it is out of engagement with said tape, the improvement comprising, a. a bracket carrying said feeding device and adapted to be mounted onto said support ring, said bracket having a passage therethrough, b. switch means operatively connected to said lever means and closed when the latter is in said out-of-action position, c. cooperating means on said support ring and said bracket for electrically connecting said switch means to a power supply, said cooperating mEans comprising conducting surfaces on said ring and conducting means extending from said switch through said passage in said bracket, said conducting means electrically engaging at least one of said conducting surfaces upon mounting said bracket onto said support ring, d. a stop motion for monitoring yarn emanating from said roller, said stop motion including a switch biased into closed position upon breakage of the monitored yarn passing therethrough, e. support means carried by said bracket for supporting said stop motion, said support means including a conductive portion electrically connected to another of said conducting surfaces on said support ring by means of a conductor extending through said bracket passage, and f. cooperating means on said stop motion and said support means whereby said stop motion switch is electrically connected to said another conducting surface upon mounting of said stop motion onto said support means.
Claim 2
Dependent Claim 285 words
In a circular knitting machine having a support ring and having a positive yarn feeding device comprising a roller and a tape running over a first portion of said roller for positively feeding yarn between said roller and said tape, said feeding device having lever means movable to an out-of-action position in which the yarn is moved onto a second portion of the roller in which it is out of engagement with said tape, the improvement comprising, a. a bracket carrying said feeding device and adapted to be mounted onto said support ring, said bracket having a passage therethrough, b. switch means operatively connected to said lever means and closed when the latter is in said out-of-action position, c. cooperating means on said support ring and said bracket for electrically connecting said switch means to a power supply, said cooperating mEans comprising conducting surfaces on said ring and conducting means extending from said switch through said passage in said bracket, said conducting means electrically engaging at least one of said conducting surfaces upon mounting said bracket onto said support ring, d. a stop motion for monitoring yarn emanating from said roller, said stop motion including a switch biased into closed position upon breakage of the monitored yarn passing therethrough, e. support means carried by said bracket for supporting said stop motion, said support means including a conductive portion electrically connected to another of said conducting surfaces on said support ring by means of a conductor extending through said bracket passage, and f. cooperating means on said stop motion and said support means whereby said stop motion switch is electrically connected to said another conducting surface upon mounting of said stop motion onto said support means.
Claim 3
Dependent Claim 33 words
The improvement in accordance with claim 1, wherein said bracket comprises a main hollow body portion and a plurality of hollow spacers removably securable thereto for selectively adjusting the level of said roller.
Claim 4
Dependent Claim 35 words
The improvement in accordance with claim 1, wherein there is further provided visual electrical means energized upon closing of said switch means to provide a visual indication of the out-of-action condition of said lever means.
Claim 5
Dependent Claim 265 words
In a circular knitting machine having a support ring and having a positive yarn feeding device comprising a roller and a tape running over a first portion of said roller for positively feeding yarn between said roller and said tape, said feeding device having lever means movable to an out-of-action position in which the yarn is moved onto a second portion of the roller in which it is out of engagement with said tape, the improvement comprising, a. a bracket carrying said feeding device and adapted to be mounted onto said support ring, said bracket having a passage therethrough, b. switch means operatively connected to said lever means and closed when the latter is in said out-of-action position, c. cooperating means on said support ring and said bracket for electrically connecting said switch means to a power supply, said cooperating means comprising conducting surfaces on said ring and conducting means extending from said switch through said passage in said bracket, said conducting means electrically engaging at least one of said conducting surfaces upon mounting said bracket onto said support ring, d. said conducting surfaces comprising two live conductive strips insulatingly mounted on said support ring, and said support ring defining a third conducting surface which is grounded, e. a stop motion for monitoring yarn emanating from said roller, said stop motion including a switch biased into closed position upon breakage of the monitored yarn passing therethrough, and f. support means carried by said bracket for supporting said stop motion, said support means including a conductive portion electrically connected to one of said live conductive strips.
Claim 6
Dependent Claim 265 words
In a circular knitting machine having a support ring and having a positive yarn feeding device comprising a roller and a tape running over a first portion of said roller for positively feeding yarn between said roller and said tape, said feeding device having lever means movable to an out-of-action position in which the yarn is moved onto a second portion of the roller in which it is out of engagement with said tape, the improvement comprising, a. a bracket carrying said feeding device and adapted to be mounted onto said support ring, said bracket having a passage therethrough, b. switch means operatively connected to said lever means and closed when the latter is in said out-of-action position, c. cooperating means on said support ring and said bracket for electrically connecting said switch means to a power supply, said cooperating means comprising conducting surfaces on said ring and conducting means extending from said switch through said passage in said bracket, said conducting means electrically engaging at least one of said conducting surfaces upon mounting said bracket onto said support ring, d. said conducting surfaces comprising two live conductive strips insulatingly mounted on said support ring, and said support ring defining a third conducting surface which is grounded, e. a stop motion for monitoring yarn emanating from said roller, said stop motion including a switch biased into closed position upon breakage of the monitored yarn passing therethrough, and f. support means carried by said bracket for supporting said stop motion, said support means including a conductive portion electrically connected to one of said live conductive strips.
Claim 7
Dependent Claim 35 words
The improvement in accordance with claim 4, wherein there is further provided a light electrically coupled to said stop motion switch, whereby said light is automatically energized in response to the closing of said switch.
Claim 8
Dependent Claim 33 words
The improvement in accordance with claim 4, wherein said bracket comprises a main hollow body portion and a plurality of hollow spacers removably securable thereto for selectively adjusting the level of said roller.
Claim 9
Dependent Claim 35 words
The improvement in accordance with claim 4, wherein there is further provided visual electrical means energized upon closing of said switch means to provide a visual indication of the out-of-action condition of said lever means.

References Cited (Backward Citations)

US2432953A Cited
US3001389A Cited
US3132495A Cited
US3264845A Cited
US3490710A Cited
US3418831A Cited
US3677036A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-04-08 1977-10-08 1978-04-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-04-08 1981-10-08 1982-04-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-04-08 1985-10-08 1986-04-09 $7700.00 Window Closed / Lapsed

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