US3558071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter for sheet winder
Assignee: Eddystone Machinery Co
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Filing: 1969-04-21
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Granted: 1971-01-26
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Expires: 1989-04-21
Abstract
Abstract A cutter for a winder for sheet material having a cutter frame provided with a track at the top, cutters in the track, one or preferably both being supported on a set of rollers which engage in longitudinal slots in the cutters, the cutters relatively reciprocating. In the preferred form both cutters float on their rollers free from engagement with the bottom of the track.
Inventors
- 👤 William Russell Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:37
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/06; B22F9/08; D; D06; D06H; D06H7/00; D06H7/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
174 words
In a winder for sheet material, spaced parallel horizontal drums, means for turning the drums in the same direction for winding a roll of sheet material thereon, the sheet material in one position of winding extending across between the drums, and a cutter frame in the space between the drums, guided for upward motion to cut the sheet material, means for moving the cutter frame upward, in combination with a track having opposed parallel sides extending horizontally on the top of the cutter frame and vertically movable with it, roller pivots extending from the track into the space between the track sides, rollers on the roller pivots in the space between the track sides, opposed cutters in the track and each engaging one of the track sides, at least one of said cutters having slots receiving rollers, said one cutter being reciprocable longitudinally on the rollers, the rollers on which said one cutter reciprocates clearing from engagement with the other cutter, and an eccentric operatively connected to said one cutter to reciprocate the same.
Claim 2
Dependent Claim
174 words
In a winder for sheet material, spaced parallel horizontal drums, means for turning the drums in the same direction for winding a roll of sheet material thereon, the sheet material in one position of winding extending across between the drums, and a cutter frame in the space between the drums, guided for upward motion to cut the sheet material, means for moving the cutter frame upward, in combination with a track having opposed parallel sides extending horizontally on the top of the cutter frame and vertically movable with it, roller pivots extending from the track into the space between the track sides, rollers on the roller pivots in the space between the track sides, opposed cutters in the track and each engaging one of the track sides, at least one of said cutters having slots receiving rollers, said one cutter being reciprocable longitudinally on the rollers, the rollers on which said one cutter reciprocates clearing from engagement with the other cutter, and an eccentric operatively connected to said one cutter to reciprocate the same.
Claim 3
Dependent Claim
57 words
A winder of claim 1, in which each cutter has slots receiving rollers of a different set, each cutter being reciprocated longitudinally on the rollers of a different set and the rollers on which each cutter reciprocates clearing from engagement with the other cutter, there being an eccentric operatively connected to each cutter to reciprocate the same.
Claim 4
Dependent Claim
12 words
A winder of claim 2, in combination with gears interconnecting the eccentrics.
Claim 5
Dependent Claim
38 words
A winder of claim 3, in which the roller pivots extend across from side to side of the track, there being slots in each cutter passing the roller pivots opposite the rollers on which the other cutter reciprocates.
Claim 6
Dependent Claim
23 words
A winder of claim 4, in which the cutters float vertically on the rollers, free from engagement with the bottom of the track.
Claim 7
Dependent Claim
24 words
A winder of claim 1, in which said one cutter floats vertically on the rollers, free from engagement with the bottom of the track.
References Cited (Backward Citations)
US2723717A
Cited
US2999653A
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US3009376A
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US3049311A
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US3047248A
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US3341144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |