US3630462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web-winding apparatus
Assignee: Black Clawson Co
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Filing: 1969-10-31
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Granted: 1971-12-28
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Expires: 1989-10-31
Abstract
Abstract Web-winding apparatus including a reel on which a roll being wound is contacted by a rider roll, and a potentiomer associated with the rider roll monitors the roll buildup and controls a DCindexing motor to rotate the winding roll away from the rider roll to maintain substantially constant pressure between the rider roll and the winding roll. A control circuit controls the acceleration and deceleration of the indexing motor as the rolls are being changed to permit web tension to be maintained constant.
Inventors
- 👤 John E Nordgren
- 👤 Hans Wirth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:02
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/195; B65H23/1955
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
137 words
Continuous web-winding apparatus comprising a reel supported for rotation about a central axis; means in said reel for rotatably supporting a plurality of roll cores; means for rotating said roll cores at a controlled rate to provide a substantially constant magnitude of tension of the web; means for selectively rotating said cores to wind a web thereon; drive means for rotating said reel to carry each of said cores to and from a winding position, said drive means including an electric motor, the speed of which can be controlled; and circuit means for controlling the speed of said drive means when in a winding position in such manner that the reel is rotated substantially continuously at a controlled speed such that tension of the web being wound on said cores is maintained at a substantially constant magnitude.
Claim 2
Dependent Claim
137 words
Continuous web-winding apparatus comprising a reel supported for rotation about a central axis; means in said reel for rotatably supporting a plurality of roll cores; means for rotating said roll cores at a controlled rate to provide a substantially constant magnitude of tension of the web; means for selectively rotating said cores to wind a web thereon; drive means for rotating said reel to carry each of said cores to and from a winding position, said drive means including an electric motor, the speed of which can be controlled; and circuit means for controlling the speed of said drive means when in a winding position in such manner that the reel is rotated substantially continuously at a controlled speed such that tension of the web being wound on said cores is maintained at a substantially constant magnitude.
Claim 3
Dependent Claim
78 words
Web-winding apparatus as defined in claim 1 wherein said circuit means includes means for sensing the location of the outer circumference of the web being wound on one of said cores with respect to a predetermined reference location; and means responsive to said sensing means for controlling the speed of said drive means so that said reel is rotated to move said roll to maintain the circumference of the web substantially at said reference location throughout winding thereof.
Claim 4
Dependent Claim
15 words
Web-winding apparatus as defined in claim 1 wherein said drive means includes a DC motor.
Claim 5
Dependent Claim
69 words
Web-winding apparatus as defined in claim 1 wherein said sensing means includes rider means positioned adjacent said winding position for engagement with the surface of a roll winding on the adjacent said core; means mounting said rider means for movement with respect to said roll surface; and means for continuously sensing the position of said rider means and providing an output to control the speed of said drive means.
Claim 6
Dependent Claim
41 words
Web-winding apparatus as defined in claim 4 wherein said mounting means for said rider means includes a pivotal mounting, and said sensing means is connected with said pivotal mounting for continuous sensing of the movement of said mounting and rider means.
Claim 7
Dependent Claim
47 words
Web-winding apparatus as defined in claim 4 wherein said drive means includes a DC motor, and said responsive means comprises a potentiometer connected to regulate the speed of said motor, and means forming an adjusting connection between said potentiometer and said mounting means for said rider means.
Claim 8
Dependent Claim
70 words
Web-winding apparatus as defined in claim 4 wherein said mounting means for said rider means includes an arm having a pivotal mounting, said drive means includes a DC motor, and said responsive means comprises a potentiometer connected to regulate the speed of said motor, and means forming a direct driving connection between said mounting means and said potentiometer for adjusting said potentiometer in accordance with movements of said rider means.
Claim 9
Dependent Claim
50 words
Web-winding apparatus as defined in claim 7 wherein said last-named means comprises a belt or chain drive including a driving wheel mounted for pivotal movemeNt with said arm, a driven wheel connected to effect adjustment of said potentiometer, and a belt or chain forming the driving connection between said wheels.
Claim 10
Dependent Claim
124 words
Continuous web-winding apparatus comprising a reel supported for rotation about a central axis; means in said reel for rotatably supporting a plurality of roll cores; means for selectively rotating said cores to wind a web thereon; drive means for rotating said reel to carry each of said cores to and from a winding position, said drive means including an electric motor, the speed of which can be controlled; means sensing the location of the web wound on said cores with respect to a predetermined reference location; and means responsive to said sensing means for controlling the speed at which said drive means continuously rotates said reel when in a winding position thereby to maintain the circumference thereof substantially at said reference location throughout winding.
Claim 11
Dependent Claim
124 words
Continuous web-winding apparatus comprising a reel supported for rotation about a central axis; means in said reel for rotatably supporting a plurality of roll cores; means for selectively rotating said cores to wind a web thereon; drive means for rotating said reel to carry each of said cores to and from a winding position, said drive means including an electric motor, the speed of which can be controlled; means sensing the location of the web wound on said cores with respect to a predetermined reference location; and means responsive to said sensing means for controlling the speed at which said drive means continuously rotates said reel when in a winding position thereby to maintain the circumference thereof substantially at said reference location throughout winding.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |