US3715897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flat bed knitting machine
Assignee: H Stoll GmbH and Co KG
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Filing: 1971-03-04
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Granted: 1973-02-13
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Expires: 1991-03-04
Abstract
Abstract A flat bed knitting machine of the type in which needles are movable in tricks under the action of selector jacks, wherein the selector jacks have butts which operatively engage knitting, transfer and re-setting locks and wherein movement of the selector jacks is controlled by a patterning lock. The patterning butt of the selector jack is adjustable relative to the body of the selector jack. This adjustable patterning butt is in the form of a bridge element pivotably connected to the selector jack and movable between two end positions by a spring and an electrically operated device. Elements fixed to the patterning lock advance and return the selector jacks.
Inventors
- 👤 W Hadam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:13
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/66; D04B15/68; D04B15/70; D04B15/32; D04B15/36; D04B15/362; D04B15/365
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
157 words
In a flat bed knitting machine of the type having needles mounted in needle tricks, a selector jack mounted in each needle trick and operatively connected to the needle therein to move it within the trick, the selector jacks having operating butts, adapted to engage an operating lock of the machine carriage to determine needle movement, and a patterning lock for controlling movements of the selector jacks in accordance with a pattern, in turn determining the movement of the needles, the improvement comprising: a patterning butt mounted on each selector jack and adjustable in relation to the body of the selector jack into or out of engagement with elements fixed on the patterning lock for moving the patterning butts, each said adjustable patterning butt being in the form of a bridge element pivotably connected to its respective selector jack, and including electrically operable means for acting on the adjustable patterning butts as the patterning lock passes thereover.
Claim 2
Dependent Claim
157 words
In a flat bed knitting machine of the type having needles mounted in needle tricks, a selector jack mounted in each needle trick and operatively connected to the needle therein to move it within the trick, the selector jacks having operating butts, adapted to engage an operating lock of the machine carriage to determine needle movement, and a patterning lock for controlling movements of the selector jacks in accordance with a pattern, in turn determining the movement of the needles, the improvement comprising: a patterning butt mounted on each selector jack and adjustable in relation to the body of the selector jack into or out of engagement with elements fixed on the patterning lock for moving the patterning butts, each said adjustable patterning butt being in the form of a bridge element pivotably connected to its respective selector jack, and including electrically operable means for acting on the adjustable patterning butts as the patterning lock passes thereover.
Claim 3
Dependent Claim
157 words
In a flat bed knitting machine of the type having needles mounted in needle tricks, a selector jack mounted in each needle trick and operatively connected to the needle therein to move it within the trick, the selector jacks having operating butts, adapted to engage an operating lock of the machine carriage to determine needle movement, and a patterning lock for controlling movements of the selector jacks in accordance with a pattern, in turn determining the movement of the needles, the improvement comprising: a patterning butt mounted on each selector jack and adjustable in relation to the body of the selector jack into or out of engagement with elements fixed on the patterning lock for moving the patterning butts, each said adjustable patterning butt being in the form of a bridge element pivotably connected to its respective selector jack, and including electrically operable means for acting on the adjustable patterning butts as the patterning lock passes thereover.
Claim 4
Dependent Claim
157 words
In a flat bed knitting machine of the type having needles mounted in needle tricks, a selector jack mounted in each needle trick and operatively connected to the needle therein to move it within the trick, the selector jacks having operating butts, adapted to engage an operating lock of the machine carriage to determine needle movement, and a patterning lock for controlling movements of the selector jacks in accordance with a pattern, in turn determining the movement of the needles, the improvement comprising: a patterning butt mounted on each selector jack and adjustable in relation to the body of the selector jack into or out of engagement with elements fixed on the patterning lock for moving the patterning butts, each said adjustable patterning butt being in the form of a bridge element pivotably connected to its respective selector jack, and including electrically operable means for acting on the adjustable patterning butts as the patterning lock passes thereover.
Claim 5
Dependent Claim
36 words
The invention of claim 1 in which the adjustable patterning butts of the selector jacks succeeding each other in the bed are staggered across the direction of travel of the patterning lock relative to the bed.
Claim 6
Dependent Claim
96 words
The invention of claim 1, wherein, at each of a plurality of positions along the patterning lock corresponding to positions at which the needle must be controlled relative to the operating lock in accordance with the pattern, there is provided pressure part means for acting on the adjustable patterning butt to present the same to the said electrically operable means, such that operation of the electrically operable means, at that moment of presentation, determines whether or not the respective selector jacks will be operated to engage or disengage their respective operating butts with the operating lock.
Claim 7
Dependent Claim
49 words
The invention of claim 3, including jack advancing elements fixed on the patterning lock and movable therewith and arranged to engage those selector jacks not held by their respective electrically operable means, whereby the operating butts of those selector jacks are positioned to be uncoupled from the operating lock.
Claim 8
Dependent Claim
42 words
The invention of claim 4 wherein the pressure part means is wide enough across the direction of travel of the patterning lock to hold down the patterning butt of the selector jacks at all positions of the latter within their respective tricks.
Claim 9
Dependent Claim
29 words
The invention of claim 5, including return elements fixed on the patterning lock and arranged to engage and return selector jacks which have been advanced by said advaNcing element.
Claim 10
Dependent Claim
12 words
The invention of claim 1, said electrically operable means being a magnet.
Claim 11
Dependent Claim
88 words
The invention of claim 7, said bridge having two arms extending along the selector jack from said pivot connection, a first arm having a magnetic armature plate such that when the said first arm is raised it engages the armature plate and the second arm positioned such that when it is raised it is positioned to be engaged by the advancing element of the patterning lock, rocking of the bridge element about the said pivot connection causing one or the other of the said arms to be raised.
Claim 12
Dependent Claim
50 words
The invention of claim 8, including spring means urging the bridge element to normally raise the said second arm, and the magnet being operable to hold the first arm in a raised position to thus lower the second arm out of engagement with the advancing element of the patterning lock.
Claim 13
Dependent Claim
34 words
The invention of claim 9, wherein the connection of the bridge to the selector jack comprises a central element on the bridge element engaged in a recess in the top of the selector jack.
Claim 14
Dependent Claim
85 words
The invention of claim 10, wherein the spring means is a leaf spring clamped down unilaterally in the body of the said recess of the selector jack, said leaf spring pressing against the arm of the bridge element bearing the patterning butt to urge the patterning butt into its engaging position with the advancing element of the patterning lock, and wherein the legs of the spring fit against the central element of the bridge under elastic centering by the said head of the bridge element.
Claim 15
Dependent Claim
14 words
The invention of claim 11, wherein the arm constituting the magnet aperture is resilient.
Claim 16
Dependent Claim
13 words
The invention of claim 12, said magnets being electromagnets coupled with permanent magnets.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |