US3765615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for severing a web to terminate one roll and initiate winding a new roll
Assignee: Eastman Kodak Co
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Filing: 1972-05-30
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Granted: 1973-10-16
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Expires: 1992-05-30
Abstract
Abstract A core onto which a web is to be wound is adapted to be moved into peripheral engagement with one side of a web support such as a winding drum or roll over which the web passes. A cutting strip of polymethylene terephthalate is positioned between spaced portions of the web and roll, and has a central portion in register with the web and inclined at an angle to the nip of the core and roll. A tape having an adhesive surface on both sides is placed on the surface of the central portion of the strip facing the web. The strip has leading and trailing end portions extending beyond respective adjacent edges of the web, and an adhesive tab portion secured to the leading end portion. When the speed of the core substantially matches the speed of the roll, the strip is fed beneath the web directly into the nip formed by the rotating roll and core. The adhesive tab portion of the strip adheres to the core end extending past the adjacent edge of the web causing the central portion of the strip, as it passes through the nip, to adhere to the web and sever it. The central portion and leading end of the severed web are wound onto the core along with the tab portion.
Inventors
- 👤 W Brink
- 👤 T Hanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:37
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/26; B65H19/262; B32; B32B; B32B27/00; B32B27/36; B32B27/06; B32B27/10; B32B7/00; B32B7/04; B32B7/06; B32B7/12; B65H19/28; B65H2408/00; B65H2408/20; B65H2408/23; B65H2408/236
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
203 words
A method for severing a web transported over a web support member to terminate formation of a first web roll and transfer the severed leading end onto a rotatable core to form a second web roll, comprising the steps of: moving said core and said web support member relative to one another into peripheral pressure engagement to form a nip through which the web passes; rotatably driving said core; positioning a strip having a tear strength greater than that of the web in a holding position between spaced portions of the web and said web support member, with a leading portion of the strip having an adhesive surface facing said core and extending beyond an adjacent edge of the web, and a central portion of the strip substantially in register with the web and arranged at an angle to said nip; and feeding said strip from said holding position to a transfer position in which said strip enters directly into said nip whereby the leading adhesive portion adheres to said rotating core and said central portion severs the web along the leading edge of said central portion and winds the leading end of the severed web and said central portion onto said core.
Claim 2
Independent Claim
203 words
A method for severing a web transported over a web support member to terminate formation of a first web roll and transfer the severed leading end onto a rotatable core to form a second web roll, comprising the steps of: moving said core and said web support member relative to one another into peripheral pressure engagement to form a nip through which the web passes; rotatably driving said core; positioning a strip having a tear strength greater than that of the web in a holding position between spaced portions of the web and said web support member, with a leading portion of the strip having an adhesive surface facing said core and extending beyond an adjacent edge of the web, and a central portion of the strip substantially in register with the web and arranged at an angle to said nip; and feeding said strip from said holding position to a transfer position in which said strip enters directly into said nip whereby the leading adhesive portion adheres to said rotating core and said central portion severs the web along the leading edge of said central portion and winds the leading end of the severed web and said central portion onto said core.
Claim 3
Dependent Claim
21 words
The method according to claim 1 comprising arranging the leading adhesive portion substantially parallel to said adjacent edge of the web.
Claim 4
Dependent Claim
51 words
The method according to claim 1 comprising forming the central portion of the strip of polyethylene terephthalate material of one width, and adhering to the surface of said central portion facing the web a tape of a width no greater than said one width and having adhesive on each side thereof.
Claim 5
Dependent Claim
25 words
The method according to claim 1 comprising the step of releasably securing the strip to a flexible support sheet prior to said strip positioning step.
Claim 6
Dependent Claim
47 words
The method according to claim 1 comprising the step of releasably securing the strip to a flexible support sheet prior to the strip positioning step, positioning the sheet and strip at the holding position, and feeding the sheet and strip from said holding position into the nip.
Claim 7
Dependent Claim
18 words
The method according to claim 1 comprising extending the central portion across the full width of the web.
Claim 8
Dependent Claim
42 words
The method according to claim 1 comprising forming said strip with ends extending past the adjacent edges of the web in said holding position, and a V-shaped portion substantially in register with the web and arranged at an angle to the nip.
Claim 9
Dependent Claim
38 words
The invention according to claim 1 wherein said web support member is rotatable, and further including the step of delaying th strip feeding step until the peripheral speeds of said web support member and core are substantially equal.
Claim 10
Dependent Claim
134 words
In a web winding apparatus having a rotatable surface for supporting a web fed therein with portions of said surface and web spaced apart from one another, a rotatable core engageable by said web supporting surface and adapted to have a new roll wound thereon, the combination comprising: means for releasably supporting a web severing strip in a holding position between spaced apart portions of the web and said web supporting surface and adjacent the nip formed between said web supporting surface and core; and means separate from said core for feeding said strip substantially directly into said nip whereby the leading end of said strip adheres to and is wound on said core causing said strip to seveR the web and to wind the leading end of the severed web onto said core.
Claim 11
Dependent Claim
134 words
In a web winding apparatus having a rotatable surface for supporting a web fed therein with portions of said surface and web spaced apart from one another, a rotatable core engageable by said web supporting surface and adapted to have a new roll wound thereon, the combination comprising: means for releasably supporting a web severing strip in a holding position between spaced apart portions of the web and said web supporting surface and adjacent the nip formed between said web supporting surface and core; and means separate from said core for feeding said strip substantially directly into said nip whereby the leading end of said strip adheres to and is wound on said core causing said strip to seveR the web and to wind the leading end of the severed web onto said core.
Claim 12
Dependent Claim
15 words
The invention according to claim 9 wherein said web supporting surface is a winding drum.
Claim 13
Dependent Claim
217 words
In a web winding apparatus having a rotatable web driving drum over which the web is fed with portions of said drum and web spaced apart from one another, and wound onto a rotatable first core to form a first web roll, and a rotatable second core onto which the web is wound to form a second roll, said second core bieng movable into peripheral engagement with said driving drum and web thereon to form a nip therebetween, the combination comprising: means for releasably supporting a web severing strip in a holding position between spaced apart portions of said web and drum and adjacent said nip, said strip having a tab portion extending past an adjacent edge of the web, and a central portion substantially in register with the web, said tab and central portions having at least one adhesive surface on one side thereof; and means separate from said core for feeding said strip substantially directly into said nip with a minimum of engagement of the web or said second core whereby the tab portion of said strip adheres to and is wound on said second core, and said central portion adheres to the web causing said strip to sever the web and to wind the leading end of the severed web onto said second core.
Claim 14
Dependent Claim
217 words
In a web winding apparatus having a rotatable web driving drum over which the web is fed with portions of said drum and web spaced apart from one another, and wound onto a rotatable first core to form a first web roll, and a rotatable second core onto which the web is wound to form a second roll, said second core bieng movable into peripheral engagement with said driving drum and web thereon to form a nip therebetween, the combination comprising: means for releasably supporting a web severing strip in a holding position between spaced apart portions of said web and drum and adjacent said nip, said strip having a tab portion extending past an adjacent edge of the web, and a central portion substantially in register with the web, said tab and central portions having at least one adhesive surface on one side thereof; and means separate from said core for feeding said strip substantially directly into said nip with a minimum of engagement of the web or said second core whereby the tab portion of said strip adheres to and is wound on said second core, and said central portion adheres to the web causing said strip to sever the web and to wind the leading end of the severed web onto said second core.
Claim 15
Dependent Claim
38 words
The invention according to claim 11 wherein said tab portion of said strip is substantially parallel to said adjacent edge of the web, and said central portion of said strip extends across the full width of the web.
Claim 16
Dependent Claim
28 words
The invention according to claim 11 wherein said strip has tab portions at each end, and a V-shaped central portion interposed between and connected to said tab portions.
Claim 17
Dependent Claim
43 words
The invention according to claim 11 wherein said tab portions extend beyond respective adjacent edges of the web, and are substantially parallel to said adjacent edges of the web, and said V-shaped central portion is in register with and extends across the web.
Claim 18
Dependent Claim
30 words
The invention according to claim 11 wherein said strip supporting means comprises a flexible sheet to which said strip is releasably secured, and a table for supporting said flexible sheet.
Claim 19
Dependent Claim
63 words
The invention according to claim 11 wherein said strip supporting means comprises a flexible sheet to which said strip is releasably secured, and a table for supporting said flexible sheet, and said strip feeding means comprises means for moving said table toward said nip from said holding position to a transfer position, in which said sheet and strip are fed into said nip.
Claim 20
Dependent Claim
56 words
The invention according to claim 11 wherein said tab portion of said strip has adhesive on the surface facing said second core, and said central portion of said strip is formed of polyethylene terephthalate, and a tape having adhesive on each side thereof is releasably secured to the surface of said central portion facing the web.
Claim 21
Dependent Claim
104 words
The invention according to claim 11 wherein said tab portion of said strip extends beyond the adjacent edge of the web and has adhesive on the surface facing said second core, and said central portion is substantially in register with the web and arranged at an angle to said nip, said central portion further being formed of polyethylene terephthalate to which a first tape having adhesive on each side thereof is releasably secured to the surface of said central portion facing the web, and a second tape having adhesive on each side thereof is releasably secured to the opposite surface of said central portion.
Claim 22
Dependent Claim
53 words
The invention according to claim 18 wherein the adhesive strength with which said tape on the surface of said central portion facing the web adheres to said central portion is greater than the adhesive strength with which said tape on the opposite surface of said central portion adheres to said strip supporting means.
Claim 23
Dependent Claim
199 words
The invention according to claim 11 wherein said strip supporting means comprises a flexible sheet, and a table for supporting said flexible sheet, said strip feeding means comprises means for moving said table toward said nip from said holding position to a transfer position, in which said sheet and strip are fed into said nip, and wherein said tab portion of said strip extends beyond the adjacent edge of the web and has adhesive on the surface facing said second core, and said central portion is substantially in register with said web and arranged at an angle to said nip, said central portion further being formed of polyethylene terephthalate and having a first tape having adhesive on each side thereof with one adhesive side releasably secured to the surface of the central portion facing the web, and a second tape having adhesive on each side therof releasably secured to the opposite surface of the central portion for releasably securing said strip to said flexible sheet, and said adhesive strength of the other adhesive side of said one tape facing said web is greater than the adhesive strength with which said second tape secures said strip to said flexible sheet.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |