US3779475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slitting and rewinding machine
Assignee: HARNDEN Ltd 35 DOVER ST LONDON W1X 3RA
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Filing: 1971-11-03
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Granted: 1973-12-18
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Expires: 1991-11-03
Abstract
Abstract A slitting and rewinding machine, wherein a relatively wide web of material, such as paper or plastics film, is slit into a plurality of narrower webs which are then rewound into individual rolls, comprises, at a rewind station thereof, at least one pair of roll support assemblies carrying a plurality of individual roll carriers, the assemblies being pivotable and arrangeable in a first configuration wherein one assembly is in a rewind position and the other assembly is in an unload position and a second configuration wherein the positions of the assemblies are reversed, enabling a second run of the machine to take place whilst full individual rolls are removed from the inoperative assembly, so reducing machine downtime and increasing productivity.
Inventors
- 👤 H Plevin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:03
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/2284; B26; B26D; B26D3/00; B26D3/16; B26D3/161; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/4148
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
195 words
A rewinding section of a slitting machine for accomodating to the slitting of a relatively wide web of material into a plurality of narrower webs windable into individual rolls cimprising: a pair of roll support assemblies disposed adjacent the slitting machine and each including an elongatEd support and a plurality of individual roll carriers mounted on the support, the assemblies each being pivotable about an axis adjacent one end of the slitting machine and arrangeable between a first configuration wherein one assembly is extendable across the machine in a rewinding position for the winding of the webs onto the cores thereof and the other assembly is in an unload position and a second configuration wherein the positions of the assemblies are reversed, a pair of rewind drums spaced one above the other with the pair of roll support assemblies being disposed on one side thereof, each roll support assembly comprising a pair of parallel supports each carrying a plurality of roll carriers, the roll carriers of one support being capable of contacting one of the rewind drums and the roll carriers of the other support being capable of contacting the other of the rewind drums.
Claim 2
Dependent Claim
195 words
A rewinding section of a slitting machine for accomodating to the slitting of a relatively wide web of material into a plurality of narrower webs windable into individual rolls cimprising: a pair of roll support assemblies disposed adjacent the slitting machine and each including an elongatEd support and a plurality of individual roll carriers mounted on the support, the assemblies each being pivotable about an axis adjacent one end of the slitting machine and arrangeable between a first configuration wherein one assembly is extendable across the machine in a rewinding position for the winding of the webs onto the cores thereof and the other assembly is in an unload position and a second configuration wherein the positions of the assemblies are reversed, a pair of rewind drums spaced one above the other with the pair of roll support assemblies being disposed on one side thereof, each roll support assembly comprising a pair of parallel supports each carrying a plurality of roll carriers, the roll carriers of one support being capable of contacting one of the rewind drums and the roll carriers of the other support being capable of contacting the other of the rewind drums.
Claim 3
Dependent Claim
173 words
A rewinding section of a slitting machine for accomodating to the slitting of a relatively wide web of material into a plurality of narrower webs windable into individual rolls comprising: a pair of roll support assemblies disposed adjacent the slitting machine and each including an elongated support and a plurality of individual roll carriers mounted on the support, the assemblies each being pivotable about an axis adjacent one end of the slitting machine and arrangeable between a first configuration wherein one assembly is extendable across the machine in a rewind position for the winding of the webs onto the cores thereof and the other assembly is in an unload position and a second configuration wherein the positions of the assemblies are reversed, the pair of assemblies being mounted for pivotal movement about vertical axes disposed symmetrically about a centerline of the machine and spaced apart by a distance slightly greater than the length of the respective supports, and the end of each assembly remote from its pivot being provided with a support roller.
Claim 4
Dependent Claim
173 words
A rewinding section of a slitting machine for accomodating to the slitting of a relatively wide web of material into a plurality of narrower webs windable into individual rolls comprising: a pair of roll support assemblies disposed adjacent the slitting machine and each including an elongated support and a plurality of individual roll carriers mounted on the support, the assemblies each being pivotable about an axis adjacent one end of the slitting machine and arrangeable between a first configuration wherein one assembly is extendable across the machine in a rewind position for the winding of the webs onto the cores thereof and the other assembly is in an unload position and a second configuration wherein the positions of the assemblies are reversed, the pair of assemblies being mounted for pivotal movement about vertical axes disposed symmetrically about a centerline of the machine and spaced apart by a distance slightly greater than the length of the respective supports, and the end of each assembly remote from its pivot being provided with a support roller.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |