Patent US3633840A successfully refreshed from Google Patents.
US3633840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding sheet material with threading device
Assignee: Eddystone Machinery Co
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Filing: 1970-03-02
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Granted: 1972-01-11
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Expires: 1990-03-02
Abstract
Abstract In a multidrum winder for sheet material, commonly called a cloth winder, in which a roll of sheet material first winds on a shell supported on the entering drum and then winds on a shell supported on the takeoff drum or on the middle drum and the takeoff drum, improved threading devices are provided to assure that the forward cut end of the cloth or other sheet material will not only start a reverse bend around the new or rear shell, but will continue backwards following the outside of that shell. In one form threading fingers, preferably spring urged toward the shell, hand down below a threading device. In another form, a threading device turning with the new or rear shell, such as a belt or wheel, has teeth which grip the sheet material near its forward end, to assure that it will feed smoothly around the new shell on the first turn. In another form, the rotary threading device is driven at a forward speed slightly greater than the speed of progression of the forward cut end.
Inventors
- 👤 William Russell Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:18
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/28; B65H19/2238; B65H19/2253; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/413; B65H2301/4136; B65H2301/41361
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
205 words
A winder for sheet material using shells and comprising a pair of horizontal spaced parallel drums turning in the same direction, one of which is an entering drum and the other of which is a takeoff drum, means for pivotally supporting a forward shell in rotatable position while the sheet material is wound thereon and while the outer circumference of the roll being wound and the forward shell are turning at least in part with the takeoff drum, means for pivotally supporting a rear shell in contact with the sheet material above the entering drum and turning with the entering drum, and cutting means rising from below the sheet material between the drums to cut the sheet material and bend the forward cut end over the rear shell, in combination with threading means contacting the side of the rear shell remote from the takeoff drum and including downwardly guiding threading fingers for holding the forward end of the sheet material against the side of the rear shell remote from the takeoff drum as the forward end approaches the portion of the rear shell immediately above the entering drum, pivoting means mounting the threading fingers, and spring means biasing the threading fingers toward the rear shell.
Claim 2
Dependent Claim
205 words
A winder for sheet material using shells and comprising a pair of horizontal spaced parallel drums turning in the same direction, one of which is an entering drum and the other of which is a takeoff drum, means for pivotally supporting a forward shell in rotatable position while the sheet material is wound thereon and while the outer circumference of the roll being wound and the forward shell are turning at least in part with the takeoff drum, means for pivotally supporting a rear shell in contact with the sheet material above the entering drum and turning with the entering drum, and cutting means rising from below the sheet material between the drums to cut the sheet material and bend the forward cut end over the rear shell, in combination with threading means contacting the side of the rear shell remote from the takeoff drum and including downwardly guiding threading fingers for holding the forward end of the sheet material against the side of the rear shell remote from the takeoff drum as the forward end approaches the portion of the rear shell immediately above the entering drum, pivoting means mounting the threading fingers, and spring means biasing the threading fingers toward the rear shell.
Claim 3
Dependent Claim
195 words
A winder for sheet material using shells and comprising a pair of pivotally spaced parallel drums turning in the same direction, one of which is an entering drum and the other of which is a takeoff drum, means for pivotally supporting a forward shell in rotatable position while sheet material is wound thereon and while the outer surface of the roll being wound and the forward shell are turning at least in part with the takeoff drum, means for supporting a rear shell in contact with the sheet material above the entering drum, and cutting means rising from below the sheet material between the drums to cut the sheet material and bend the forward cut end over the rear shell, in combination with threading means contacting the side of the rear shell remote from tHe takeoff drum including means turning at a linear speed greater than the speed of the forward end of the sheet material for holding the sheet material against the rear shell, and means for driving the means for holding the sheet material against the rear shell at a speed greater than the speed of the forward end of the sheet material.
Claim 4
Dependent Claim
195 words
A winder for sheet material using shells and comprising a pair of pivotally spaced parallel drums turning in the same direction, one of which is an entering drum and the other of which is a takeoff drum, means for pivotally supporting a forward shell in rotatable position while sheet material is wound thereon and while the outer surface of the roll being wound and the forward shell are turning at least in part with the takeoff drum, means for supporting a rear shell in contact with the sheet material above the entering drum, and cutting means rising from below the sheet material between the drums to cut the sheet material and bend the forward cut end over the rear shell, in combination with threading means contacting the side of the rear shell remote from tHe takeoff drum including means turning at a linear speed greater than the speed of the forward end of the sheet material for holding the sheet material against the rear shell, and means for driving the means for holding the sheet material against the rear shell at a speed greater than the speed of the forward end of the sheet material.
Claim 5
Dependent Claim
18 words
A winder of claim 2, in which the means for driving is operated by one of the drums.
Claim 6
Dependent Claim
29 words
A winder of claim 3, in which the means turning at a linear speed greater than the speed of the forward end of the sheet material comprises belt means.
Claim 7
Dependent Claim
17 words
A winder of claim 4, in which said belt means has teeth thereon engaging the sheet material.
Claim 8
Dependent Claim
32 words
A winder of claim 4, in which said belt means turns at a speed of between 0.1 and 10 percent greater than the speed of the forward end of the sheet material.
Claim 9
Independent Claim
133 words
A method of winding sheet material on an entering drum and a takeoff drum, which comprises passing the sheet material about the entering drum in contact with it and winding a roll of sheet material at least partially on the takeoff drum, positioning a new shell against the sheet material above the entering drum and turning the new shell by the motion of the sheet material and the entering drum, cutting the sheet material between the drums, directing the forward cut end of the sheet material reversely around the new shell, passing the forward cut end of the reversely bent sheet material against the new shell and at the same time pulling the forward cut end forward by a pull tending to advance it at a speed greater than its speed of progression.
Claim 10
Independent Claim
133 words
A method of winding sheet material on an entering drum and a takeoff drum, which comprises passing the sheet material about the entering drum in contact with it and winding a roll of sheet material at least partially on the takeoff drum, positioning a new shell against the sheet material above the entering drum and turning the new shell by the motion of the sheet material and the entering drum, cutting the sheet material between the drums, directing the forward cut end of the sheet material reversely around the new shell, passing the forward cut end of the reversely bent sheet material against the new shell and at the same time pulling the forward cut end forward by a pull tending to advance it at a speed greater than its speed of progression.
Claim 11
Dependent Claim
36 words
A method of claim 7, which comprises pulling the forward cut end forward by a member progressing at a speed between 0.1 and 10 percent faster than the speed of progression of the forward cut end.
Claim 12
Dependent Claim
38 words
A method of claim 7, which comprises pulling the cut end forward by a pull exerted by a member progressing at a speed of about 1 percent greater than the speed of progression of the forward cut end.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |