US3583619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn accumulator
Assignee: Individual
•
Filing: 1968-10-31
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Granted: 1971-06-08
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Expires: 1988-10-31
Abstract
Abstract A yarn accumulator for collecting and intermittently storing and supplying a plurality of yarns in sheet form in various lengths responsive to operating conditions including tension in which a plurality of fixed rotatable yarn-engaging rolls cooperate with a plurality of vertically displaceable tension rolls movable in unison in accordance with a predetermined load on the yarn warp sheet to store and supply yarn as required during warping operation.
Inventors
- 👤 Donald O Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:09
CPC Classifications
D; D02; D02H; D02H13/00; B; B65; B65H; B65H59/00; B65H59/10; B65H59/20; B65H59/26; B65H59/32; B65H59/34; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
178 words
A yarn accumulator for collecting, storing and supplying yarns in sheet form without independent power supply comprising: a frame having a base and a top section a first plurality of rotatable yarn-engaging rolls laterally spaced from each other fixedly supported on said frame a suitable distance above said base to receive a warp sheet thereon, a second plurality of rotatable yarn-engaging tension rolls for drawing the yarn in sheet form into said accumulator and positioned in staggered spaced relation to said first plurality of rolls, said second plurality of tension rolls being cooperatively supported to pass freely in unison between said first plurality of rolls from adjacent to said top section of said frame to a position below said first plurality of rolls and above said base, counterweight means associated with said tension rolls to control the vertical displacement of said plurality of tension rolls and to exert a predetermined tension on a warp sheet of yarns supported on said rolls, and means for releasably clamping a warp sheet of yarns responsive to displacement of said tension rolls.
Claim 2
Dependent Claim
178 words
A yarn accumulator for collecting, storing and supplying yarns in sheet form without independent power supply comprising: a frame having a base and a top section a first plurality of rotatable yarn-engaging rolls laterally spaced from each other fixedly supported on said frame a suitable distance above said base to receive a warp sheet thereon, a second plurality of rotatable yarn-engaging tension rolls for drawing the yarn in sheet form into said accumulator and positioned in staggered spaced relation to said first plurality of rolls, said second plurality of tension rolls being cooperatively supported to pass freely in unison between said first plurality of rolls from adjacent to said top section of said frame to a position below said first plurality of rolls and above said base, counterweight means associated with said tension rolls to control the vertical displacement of said plurality of tension rolls and to exert a predetermined tension on a warp sheet of yarns supported on said rolls, and means for releasably clamping a warp sheet of yarns responsive to displacement of said tension rolls.
Claim 3
Dependent Claim
191 words
A yarn accumulator for collecting, storing and supplying yarns: a frame having a base and a top section, a first plurality of rotatable yarn-engaging rolls laterally spaced from each other fixedly supported on said frame a suitable distance above said base to receive a warp sheet thereon, a second plurality of rotatable yarn-engaging tension rolls for drawing the yarns in sheet form into said accumulator and positioned in staggered spaced relation to said first plurality of rolls, said second plurality of tension rolls being cooperatively supported to pass freely in unison between said first plurality of rolls from adjacent to said top section of said frame to a position below said first plurality of rolls and above said base, counterweight means associated with said tension rolls to control the vertical displacement of said plurality of tension rolls and to exert a predetermined tension on a warp sheet of yarns supported on said rolls, warp yarn sheet clamping means having stationary and movable members for engaging and disengaging a warp sheet, and means responsive to yarn accumulation for actuating said warp yarn sheet clamping means to engage or disengage a warp sheet.
Claim 4
Dependent Claim
191 words
A yarn accumulator for collecting, storing and supplying yarns: a frame having a base and a top section, a first plurality of rotatable yarn-engaging rolls laterally spaced from each other fixedly supported on said frame a suitable distance above said base to receive a warp sheet thereon, a second plurality of rotatable yarn-engaging tension rolls for drawing the yarns in sheet form into said accumulator and positioned in staggered spaced relation to said first plurality of rolls, said second plurality of tension rolls being cooperatively supported to pass freely in unison between said first plurality of rolls from adjacent to said top section of said frame to a position below said first plurality of rolls and above said base, counterweight means associated with said tension rolls to control the vertical displacement of said plurality of tension rolls and to exert a predetermined tension on a warp sheet of yarns supported on said rolls, warp yarn sheet clamping means having stationary and movable members for engaging and disengaging a warp sheet, and means responsive to yarn accumulation for actuating said warp yarn sheet clamping means to engage or disengage a warp sheet.
Claim 5
Dependent Claim
281 words
A yarn accumulator for collecting, storing and supplying yarns in sheet form without independent power supply comprising: a frame having a base and a top section, a first plurality of rotatable yarn-engaging rolls laterally spaced from each other fixedly supported on said frame a suitable distance above said base to receive a warp sheet thereon, a second plurality of rotatable yarn-engaging tension rolls for drawing the yarns in sheet form into said accumulator and positioned in staggered spaced relation to said first plurality of rolls, said second plurality of tension rolls being cooperatively supported to pass freely in unison between said first plurality of rolls from adjacent to said top section of said frame to a position below said first plurality of rolls and above said base, counterweight means associated with said tension rolls To control the vertical displacement of said plurality of tension rolls and to exert a predetermined tension on a warp sheet of yarns supported on said rolls, said counterweight means being adjustable to vary the counterweight load and including a member having removable weights thereon, a header bar for supporting said tension rolls for vertical displacement in unison, flexible means connecting said counterweight means and said header bar for transferring displacement of said counterweight means to said header bar, warp yarn sheet clamping means having a fixed member and a movable member in spaced relation to said fixedly supported rolls, means responsive to tension roll displacement for actuating said clamping means into and out of engagement, and means responsive to displacement of said tension rolls for displacing said counterweight means to a lowered position thereby elevating said tension rolls out of engagement with a warp yarn sheet.
Claim 6
Dependent Claim
281 words
A yarn accumulator for collecting, storing and supplying yarns in sheet form without independent power supply comprising: a frame having a base and a top section, a first plurality of rotatable yarn-engaging rolls laterally spaced from each other fixedly supported on said frame a suitable distance above said base to receive a warp sheet thereon, a second plurality of rotatable yarn-engaging tension rolls for drawing the yarns in sheet form into said accumulator and positioned in staggered spaced relation to said first plurality of rolls, said second plurality of tension rolls being cooperatively supported to pass freely in unison between said first plurality of rolls from adjacent to said top section of said frame to a position below said first plurality of rolls and above said base, counterweight means associated with said tension rolls To control the vertical displacement of said plurality of tension rolls and to exert a predetermined tension on a warp sheet of yarns supported on said rolls, said counterweight means being adjustable to vary the counterweight load and including a member having removable weights thereon, a header bar for supporting said tension rolls for vertical displacement in unison, flexible means connecting said counterweight means and said header bar for transferring displacement of said counterweight means to said header bar, warp yarn sheet clamping means having a fixed member and a movable member in spaced relation to said fixedly supported rolls, means responsive to tension roll displacement for actuating said clamping means into and out of engagement, and means responsive to displacement of said tension rolls for displacing said counterweight means to a lowered position thereby elevating said tension rolls out of engagement with a warp yarn sheet.
References Cited (Backward Citations)
CA446990A
Cited
US1941597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |