Patent FR2381981A1 successfully refreshed from Google Patents.
US3740971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction of jack selectors in circular knitting machines
Assignee: Individual
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Filing: 1970-12-30
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Granted: 1973-06-26
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Expires: 1990-12-30
Abstract
Abstract A jack selector device in a circular knitting machine in which a pair of elongated elements define an elongated slit rotatable in a cylinder. A key for making the jack selections is inserted into the slit and has opposite edges extending outwardly of the opposite sides of the slit. The opposite edges of the key have irregularities or teeth that correspond to two patterns of jack selection. The key is rotated so that the edges alternatively engage surfaces on jack selectors to actuate them from a rest position to an operative position in which they are actuated to execute the jack selection. The jack selectors are biased to their rest position by respective biasing springs.
Inventors
- 👤 J Font
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:32
CPC Classifications
D; D04; D04B; D04B37/00; D04B37/02; D04B37/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
174 words
In a circular knitting machine having a plurality of jack selectors, a jack selector device comprising, means defining a cylinder, two elongated elements mounted for rotation in said cylinder defining an axial slit therebetween open axially on opposite sides and at opposite ends for removably and interchangeably receiving different keys insertable individually, axially therein, a key insertable axially in said slit and having projections on opposite edges thereof for selection of said jack selectors when in use in said slit, said slit extending axially of said cylinder and dimensioned to allow said teeth of the individual keys inserted therein to project outwardly on opposite sides of said slit for engagement with selected ones of said jack selectors, said selector device being disposed relative to said jack selectors close adjacent thereto to insure that when an individual key is inserted into said slit and rotated the teeth of one edge bear on respective surfaces of said jack selectors and actuate them axially for developing a selected pattern corresponding to jacks selected by said jack selectors.
Claim 2
Dependent Claim
174 words
In a circular knitting machine having a plurality of jack selectors, a jack selector device comprising, means defining a cylinder, two elongated elements mounted for rotation in said cylinder defining an axial slit therebetween open axially on opposite sides and at opposite ends for removably and interchangeably receiving different keys insertable individually, axially therein, a key insertable axially in said slit and having projections on opposite edges thereof for selection of said jack selectors when in use in said slit, said slit extending axially of said cylinder and dimensioned to allow said teeth of the individual keys inserted therein to project outwardly on opposite sides of said slit for engagement with selected ones of said jack selectors, said selector device being disposed relative to said jack selectors close adjacent thereto to insure that when an individual key is inserted into said slit and rotated the teeth of one edge bear on respective surfaces of said jack selectors and actuate them axially for developing a selected pattern corresponding to jacks selected by said jack selectors.
Claim 3
Dependent Claim
28 words
In a circular knitting machine according to claim 1, including means holding said two elongated elements spaced from each other defining said slit and rotationally within said cylinder.
Claim 4
Dependent Claim
20 words
In a circular knitting machine according to claim 2, including means maintaining the two elements positioned axially within the cylinder.
Claim 5
Dependent Claim
48 words
In circular knitting machine according to claim 2, including lock means on said two elements for rotation therewith, and other lock means on said selector cooperative with said lock means for releasably retaining the two elements in different positions angularly spaced about the longitudinal axis of said cylinder.
Claim 6
Dependent Claim
83 words
In a circular knitting machine according to claim 2, including means closing partially an end of said cylinder through which an individual key is inserted into said slit, the last-mentioned means having means retaining the key inserted in said slit and having notches to allow retraction of said key when disengaged from said surfaces of said jack selectors and for insertion into said slit, said notches being disposed angularly spaced from positions in which said key engages said surfaces of said jack selectors.
Claim 7
Dependent Claim
25 words
In a circular knitting machine according to claim 2, including means biasing the jack selectors to a retracted inactive position when disengaged from said key.
Claim 8
Dependent Claim
23 words
In a circular knitting machine according to claim 2, including means for viewing the angular position of said two elements in said cylinder.
Claim 9
Dependent Claim
18 words
In a circular knitting machine according to claim 7, in which the last-mentiOned means including a viewing lens.
Claim 10
Dependent Claim
38 words
In a circular knitting machine according to claim 2, in which said key insertable into said slit and having different sets of teeth on opposite edges thereof corresponding to two different patterns of actuation of said jack selectors.
Claim 11
Dependent Claim
58 words
In a circular knitting machine according to claim 2, including a stop in said cylinder for locating said slit in a position in which the edges of said key are ineffective and said jack selectors are restored to an inactive position, and means on said jack selectors biasing them to an inactive position when disengaged from said key.
Claim 12
Dependent Claim
135 words
In a circular knitting machine having a plurality of jack selectors biased to a rest position and movable individually to an operative position for selecting a corresponding jack, a jack selector device comprising, means defining a cylinder, means rotational in said cylinder defining an elongated slit open longitudinally on opposite sides and on opposite ends, a pattern-selector key insertable axially into said slit and having two edges with irregularities thereon corresponding to two different selection patterns for selection of jacks when inserted into said slit for rotation thereof into two angularly spaced positions in which said edges thereon alternatively engage surfaces on said jack selectors for selecting a pattern of jacks corresponding to the irregularities on a corresponding edge, and said edges of said key extending outwardly from the open opposite sides of said slit.
Claim 13
Dependent Claim
135 words
In a circular knitting machine having a plurality of jack selectors biased to a rest position and movable individually to an operative position for selecting a corresponding jack, a jack selector device comprising, means defining a cylinder, means rotational in said cylinder defining an elongated slit open longitudinally on opposite sides and on opposite ends, a pattern-selector key insertable axially into said slit and having two edges with irregularities thereon corresponding to two different selection patterns for selection of jacks when inserted into said slit for rotation thereof into two angularly spaced positions in which said edges thereon alternatively engage surfaces on said jack selectors for selecting a pattern of jacks corresponding to the irregularities on a corresponding edge, and said edges of said key extending outwardly from the open opposite sides of said slit.
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |