Patent US3708133A successfully refreshed from Google Patents.
US3708133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for winding yarn
Assignee: EIDP Inc
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Filing: 1971-07-16
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Granted: 1973-01-02
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Expires: 1991-07-16
Abstract
Abstract A winding apparatus of the type that includes a plurality of arms rotatably mounted in a frame for moving rotatable chucks mounted to the arms successively through winding and doffing positions includes a yarn transfer mechanism for transferring yarn from a full package to an empty package support carried by the chucks. The transfer mechanism is carried by a linkage mechanism which is actuated by a motive means that is operated by a cam and follower arrangement coupled between the windup frame and the rotatable arms. The cam includes a separable portion carried by the linkage which when engaged by a follower carried by the rotatable arms triggers operation of the linkage. The cam and follower arrangement serves both as a guide for the movement of the arms and as a means for initiating operation of the transfer mechanism.
Inventors
- 👤 J Mcerlane
- 👤 R Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:39
CPC Classifications
B; B65; B65H; B65H67/00; B65H67/04; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
249 words
In a winding apparatus including a drive roll, wherein a plurality of chucks are advanced in succession from a winding position to a doffing position and including a plurality of arms rotatably mounted in a frame for moving the chucks through said positions, each chuck carrying a package support and having yarn snagging elements adjacent one end of the carried support and a traverse guide through which yarn normally advances around the drive roll to a support driven by the drive roll in the winding position, a yarn transfer mechanism comprising: a cam surface on said frame, said surface having a separable portion at one end, each arm having a cam follower fixed thereto for engaging said cam surface to guide said arm from said winding position toward said doffing position; guide means positioned adjacent said winding position for movement of said yarn below said drive roll across said snagging elements adjacent one end of an empty support and above said drive roll toward said one end; a linkage mechanism mounting said guide means for said movement, said linkage mechanism carrying said separable portion of said cam surface, said separable portion being displaced by said cam follower during movement of one of said arms from said winding toward said doffing position to impart said movement to said linkage while yarn is still advancing to a full package moving toward said doffing position whereby to deflect, snare and sever said yarn to initiate a new package on said empty support.
Claim 2
Dependent Claim
249 words
In a winding apparatus including a drive roll, wherein a plurality of chucks are advanced in succession from a winding position to a doffing position and including a plurality of arms rotatably mounted in a frame for moving the chucks through said positions, each chuck carrying a package support and having yarn snagging elements adjacent one end of the carried support and a traverse guide through which yarn normally advances around the drive roll to a support driven by the drive roll in the winding position, a yarn transfer mechanism comprising: a cam surface on said frame, said surface having a separable portion at one end, each arm having a cam follower fixed thereto for engaging said cam surface to guide said arm from said winding position toward said doffing position; guide means positioned adjacent said winding position for movement of said yarn below said drive roll across said snagging elements adjacent one end of an empty support and above said drive roll toward said one end; a linkage mechanism mounting said guide means for said movement, said linkage mechanism carrying said separable portion of said cam surface, said separable portion being displaced by said cam follower during movement of one of said arms from said winding toward said doffing position to impart said movement to said linkage while yarn is still advancing to a full package moving toward said doffing position whereby to deflect, snare and sever said yarn to initiate a new package on said empty support.
Claim 3
Dependent Claim
14 words
The apparatus as deFined in claim 1, there being two chucks and two arms.
Claim 4
Dependent Claim
52 words
The apparatus as defined in claim 1, including a means for biasing said separable cam portion upwardly, said cam surface comprising spaced upper and lower, confronting surfaces, said separable portion being a part of the lower surface and converging toward said upper surface thereby yieldably obstructing the space between said confronting surfaces.
Claim 5
Dependent Claim
136 words
The apparatus as defined in claim 1, said guide means comprising: a horizontally movable bayonet positioned above said traverse guide ahead of said yarn, said bayonet having a U-shaped portion opening toward said yarn; a horizontal bar positioned above said traverse guide behind said yarn, said bar being supported for pivotal movement to and from a position moving said yarn out of the traverse guide into said U-shaped portion, said U-shaped portion being movable from a position within the path of traverse to a position outside the path of traverse adjacent said one end; and a yarn deflecting member positioned below said drive roll, said member being mounted for pivotal movement to and from a position engaging and sweeping the yarn across the snagging elements, said bayonet being coupled to said member for simultaneous movement therewith.
Claim 6
Dependent Claim
164 words
The apparatus as defined in claim 1, said guide means comprising a fixed bayonet positioned above said traverse guide ahead of said yarn, said bayonet having a U-shaped portion opening toward said yarn, said portion being within the path of traverse and adjacent the snagging elements; a horizontal bar positioned above said traverse guide behind said yarn, said bar being supported for pivotal movement to and from a position moving said yarn out of the traverse guide into the U-shaped portion; a horizontally movable hook positioned below said bayonet, said hook being movable from within the path of traverse past a yarn engaging position with yarn in said U-shaped portion to a position outside the path of traverse adjacent said one end; and a yarn deflecting member positioned below said drive roll, said member being mounted for pivotal movement to and from a position engaging and sweeping the yarn toward the snagging elements, said hook being coupled to said member for simultaneous movement therewith.
Claim 7
Dependent Claim
243 words
In a winding apparatus including a drive roll, wherein a plurality of chucks are advanced in succession from a winding position to a doffing position and including a plurality of arms rotatably mounted in a frame for moving the chucks through sad positions, each chuck carrying a package support and having yarn snagging elements adjacent one end of the carried support and a traverse guide through which yarn normally advances around the drive roll to a support driven by the drive roll in the winding position, a device for initiating winding of said advancing yarn on a driven empty package support in said winding position comprising: a cam surface on said frame, said surface having a separable portion at one end, each arm having a cam follower fixed thereto for engaging said cam surface to guide said arm from said winding position toward said doffing position; guide means positioned adjacent said one end of said empty support in said winding position for sweeping movement of said yarn across said snagging elements to snag and sever the yarn; a linkage mechanism mounting said guide means for said movement, said linkage mechanism carrying said separable portion of said cam surface, said separable portion being displaced by said cam follower during movement of said arms from said winding toward said doffing position to impart said movement to said linkage whereby to deflect snag and sever said yarn thereby initiating a new package on said empty support.
Claim 8
Dependent Claim
243 words
In a winding apparatus including a drive roll, wherein a plurality of chucks are advanced in succession from a winding position to a doffing position and including a plurality of arms rotatably mounted in a frame for moving the chucks through sad positions, each chuck carrying a package support and having yarn snagging elements adjacent one end of the carried support and a traverse guide through which yarn normally advances around the drive roll to a support driven by the drive roll in the winding position, a device for initiating winding of said advancing yarn on a driven empty package support in said winding position comprising: a cam surface on said frame, said surface having a separable portion at one end, each arm having a cam follower fixed thereto for engaging said cam surface to guide said arm from said winding position toward said doffing position; guide means positioned adjacent said one end of said empty support in said winding position for sweeping movement of said yarn across said snagging elements to snag and sever the yarn; a linkage mechanism mounting said guide means for said movement, said linkage mechanism carrying said separable portion of said cam surface, said separable portion being displaced by said cam follower during movement of said arms from said winding toward said doffing position to impart said movement to said linkage whereby to deflect snag and sever said yarn thereby initiating a new package on said empty support.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |