US3572597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile machines
Assignee: Ernest Scragg and Sons Ltd
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Filing: 1968-09-25
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Granted: 1971-03-30
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Expires: 1988-09-25
Abstract
Abstract A doffing mechanism of a textile machine in which prior to severing the yarn a full spool is released from the yarn-winding position to fall on to auxiliary drive rolls and is then supported and rotated by auxiliary drive rolls so that the full spool continues to take up yarn until an empty spool is delivered to the winding position and is ready to take up yarn, whereafter the yarn is severed to commence winding on of yarn on the empty spool and the auxiliary drive rolls are moved to lower the full spool on to a delivery conveyor arranged below these rolls.
Inventors
- 👤 Walter Parker
- 👤 Harold William Lee
- 👤 Alan Herbert Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
B; B65; B65H; B65H67/00; B65H67/04; B65H67/0405; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
211 words
In a textile machine, a yarn package winding mechanism comprising a rotatable main drive roll, support means for supporting a spool to contact said main drive roll and thus to be rotated by said main drive roll, means for guiding yarn onto the spool during said rotation of the latter to form a yarn package, said support means being operable to release the package from contact with the main drive roll, an auxiliary roll drive positioned to receive a wound package upon release of the latter from said supporting means while yarn is still being guided onto said spool by said means for guiding, said auxiliary roll drive driving the said released wound package, and means for severing the yarn between said main drive roll and said auxiliary roll drive as the yarn is being rotated by contact with said auxiliary roll drive; the iMprovement which comprises a conveyor below said auxiliary roll drive and a construction of said auxiliary roll drive comprising a pair of rotating rolls arranged side-by-side for cradling the released package, and supporting means for supporting said pair of rolls, said supporting means including means for simultaneously lowering said pair of rolls towards said conveyor to lower the released package cradled on said rolls onto the conveyor.
Claim 2
Dependent Claim
211 words
In a textile machine, a yarn package winding mechanism comprising a rotatable main drive roll, support means for supporting a spool to contact said main drive roll and thus to be rotated by said main drive roll, means for guiding yarn onto the spool during said rotation of the latter to form a yarn package, said support means being operable to release the package from contact with the main drive roll, an auxiliary roll drive positioned to receive a wound package upon release of the latter from said supporting means while yarn is still being guided onto said spool by said means for guiding, said auxiliary roll drive driving the said released wound package, and means for severing the yarn between said main drive roll and said auxiliary roll drive as the yarn is being rotated by contact with said auxiliary roll drive; the iMprovement which comprises a conveyor below said auxiliary roll drive and a construction of said auxiliary roll drive comprising a pair of rotating rolls arranged side-by-side for cradling the released package, and supporting means for supporting said pair of rolls, said supporting means including means for simultaneously lowering said pair of rolls towards said conveyor to lower the released package cradled on said rolls onto the conveyor.
Claim 3
Dependent Claim
69 words
In a textile machine, a yarn package winding mechanism as claimed in claim 1, said means supporting said pair of rolls of the auxiliary roll drive comprising two sets of arms respectively having the rolls rotatively mounted at their ends, means mounting said sets of arms for swinging movement from an upper package-cradling position downwardly to a position in which said released yarn package is lowered onto the conveyor.
Claim 4
Dependent Claim
42 words
In a textile machine, a yarn package winding mechanism according to claim 2, comprising a driven shaft, and belt and pulley drives drivingly interconnecting said shaft and said rolls of the auxiliary roll drive, said shaft having said arms swingably mounted thereon.
Claim 5
Dependent Claim
47 words
In a textile machine, a yarn package winding mechanism according to claim 3, comprising rockable shafts positioned adjacent said driven shafts and meshing toothed sections on said arms and on respective ones of the rockable shafts, whereby rocking of the rockable shafts effects swinging of the arms.
Claim 6
Dependent Claim
107 words
A textile machine having a yarn package winding mechanism as set forth in claim 1 and a magazine for storage of empty spools, the magazine having means defining a delivery mouth in which a spool is held in a pickup position, catch means obstructing the path of the spools from the magazine to the pickup position in the mouth, said support means for the spool being movable between a winding position in which the spool contacts the main drive roll and a spool pickup position at the magazine mouth, said support means in the spool pickup position engaging the catch means for withdrawing it from said path.
Claim 7
Dependent Claim
94 words
A textile machine as claimed in claim 5, wherein the mouth of the magazine has a counterbalanced spool-locating lip and the catch means comprise first and second pivoted detents, the first detent, when winding is proceeding, projecting into said path and holding the empty spools in the magazine back clear of the lip and being engaged by the said support means in said pickup position to be pivoted from said path, and said second detent being simultaneously pivoted into the path of the next spool to prevent it from being delivered to the lip.
Claim 8
Dependent Claim
85 words
A textile machine as claimed in claim 1, comprising means to guide yarn which is travelling from said main drive roll towards a full spool being driven by the auxiliary roll drive, which guide means comprises a plate with a transversely disposed arcuate slot in it and above the slot a correspondingly arcuate resilient guide wire having a midlength notch, the arrangement being that the yarn moves over the wire until it enters the notch which acts to guide the yarn into a desired path.
Claim 9
Dependent Claim
28 words
A textile machine as claimed in claim 7, the height of the guide wire above the plate increasing from the ends of the wire towards the midlength notch.
Claim 10
Dependent Claim
54 words
A textile machine as claimed in claim 1, comprising deflector panels swingable suspended adjacent the main drive roll and above the auxiliary roll drive to assist delivery of the released full spool to the auxiliary roll drive, the panels having associated with them weighting bars adjustable to vary the guiding effect of the panels.
Claim 11
Dependent Claim
41 words
A textile machine as claimed in claim 1, having winding positions along each side of the machine, the auxiliary roll drive and the conveyor being disposed centrally of the machine to serve the winding positions on both sides of the machine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |