Patent US3701274A successfully refreshed from Google Patents.
US3701274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller leveler with adjustable flattening section
Assignee: Sutton Engineering Co
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Filing: 1970-11-09
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Granted: 1972-10-31
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Expires: 1990-11-09
Abstract
Abstract A vertically spaced pair of roll units, constituting a shape correction section, extend lengthwise between the bed and vertically adjustable beam of a roller leveler. One of these roll units is supported by the beam. There is a second vertically spaced pair of roll units that form a flattening section beside the shape correction section. The side of one of the flattening roll units nearest the other section is pivotally connected to the beam on an axis extending lengthwise of it. There also are vertically adjustable means, located between the pivot and the opposite side of the pivoted roll unit, which connect the latter to the beam in a manner that permits the roll unit to be tilted transversely. Means are provided for moving the pivot vertically relative to the beam to enable the pivoted flattening roll unit to be adjusted vertically relative to the shape correction roll unit beside it. Means also may be provided for deflecting the other flattening roll unit relative to the shape correction section.
Inventors
- 👤 Christian Roesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:00
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
173 words
A roller leveler comprising a housing having end frames at the opposite ends of a vertically spaced bed and beam, means for adjusting said beam vertically, a first verticAlly spaced pair of roll units extending lengthwise between said bed and beam and constituting a shape correction section of the leveler, means supporting one of said roll units by said beam for movement with it, a second vertically spaced pair of roll units between said bed and beam beside said shape correction section and constituting a flattening section of the leveler, means pivotally connecting the side of a flattening roll unit adjacent said shape correction roll unit with said beam on an axis extending lengthwise thereof, vertically adjustable means between said pivotal means and the opposite side of the pivoted roll unit connecting the latter to the beam to permit the roll unit to be tilted transversely, and means for adjusting said pivotal means vertically relative to the beam, whereby said pivoted roll unit can be adjusted vertically relative to said shape correction unit.
Claim 2
Dependent Claim
173 words
A roller leveler comprising a housing having end frames at the opposite ends of a vertically spaced bed and beam, means for adjusting said beam vertically, a first verticAlly spaced pair of roll units extending lengthwise between said bed and beam and constituting a shape correction section of the leveler, means supporting one of said roll units by said beam for movement with it, a second vertically spaced pair of roll units between said bed and beam beside said shape correction section and constituting a flattening section of the leveler, means pivotally connecting the side of a flattening roll unit adjacent said shape correction roll unit with said beam on an axis extending lengthwise thereof, vertically adjustable means between said pivotal means and the opposite side of the pivoted roll unit connecting the latter to the beam to permit the roll unit to be tilted transversely, and means for adjusting said pivotal means vertically relative to the beam, whereby said pivoted roll unit can be adjusted vertically relative to said shape correction unit.
Claim 3
Dependent Claim
48 words
A roller leveler according to claim 1, in which said last-mentioned means include a shaft extending lengthwise of said beam, eccentrics rigidly mounted on the shaft, means encircling the eccentrics and shaft and connecting them with said beam and pivoted roll unit, and means for turning the shaft.
Claim 4
Dependent Claim
59 words
A roller leveler according to claim 2, in which said shaft-turning means include a gear rigidly mounted on said shaft, a stub shaft extending laterally of the other shaft and rotatably supported by the beam, and a gear rigidly mounted in the stub shaft and meshing with the other gear for turning it when the stub shaft is turned.
Claim 5
Dependent Claim
70 words
A roller leveler according to claim 1, in which said last-mentioned means include a shaft extending lengthwise of said beam, eccentrics rigidly mounted on the shaft, a row of bearings for the shaft, another row of bearings for the eccentrics, one of said rows being secured to the beam and the other row being secured to the pivoted roll unit, and means for turning said shaft to rotate the eccentrics.
Claim 6
Dependent Claim
42 words
A roller leveler according to claim 1, in which said beam is above said shape correction and flattening sections, first and second upper roll units of said sections are suspended from the beam, and the second roll unit is the pivoted unit.
Claim 7
Dependent Claim
55 words
A roller leveler according to claim 1, in which said first-mentioned vertically adjustable means include suspension means extending vertically above said second upper roll unit, rotatable eccentric means carried by the beam and supporting the upper part of said suspension means, and means for rotating said eccentric means to raise and lower the suspension means.
Claim 8
Dependent Claim
85 words
A roller leveler according to claim 6, in which said top beam is hollow and provided with an opening in its bottom, said suspension means is a vertical plate extending through said opening and provided with longitudinally spaced openings inside the top beam, and said eccentric means include rotatable eccentrics mounted in said plate openings, horizontal shafts journalled in the side of the beam and supporting the eccentrics, and means carried by the outside of the beam for turning said shafts to rotate the eccentrics.
Claim 9
Dependent Claim
115 words
A roller leveler according to claim 1, in which said last-mentioned means include a shaft extending lengthwise of said beam, eccentrics rigidly mounted on the shaft, means encircling the eccentrics and shaft and connecting them with said beam and second upper roll unit, and means for turning the shaft, said top beam being hollow and provided with an opening in its bottom, and said first-mentioned vertically adjustable means including suspension means extending vertically through said beam opening and attached to said second upper roll unit, rotatable eccentric means carried by the beam and supporting the upper part of said suspension means, and means for rotating said eccentric means to raise and lower the suspension means.
Claim 10
Dependent Claim
68 words
A roller leveler according to claim 1, in which said last-mentioned vertically adjustable means include suspension means extending vertically above said second upper roll unit, rotatable eccentric means carried by thE beam and supporting the upper part of said suspension means, and means for rotating said eccentric means to raise and lower the suspension means, said pivotal means being carried by the lower part of said suspension means.
Claim 11
Dependent Claim
97 words
A roller leveler according to claim 1, in which said vertically adjustable means include parallel vertical plates above said second upper roll unit and extending lengthwise thereof, rotatable eccentric means carried by the beam and supporting the upper parts of said plates, means for rotating the eccentric means of each plate independently of the other to raise and lower the plates, and means pivotally connecting said opposite side of the second upper roll unit with the lower part of one of said plates, said first-mentioned pivotal means being carried by the lower part of the other plate.
Claim 12
Dependent Claim
92 words
In a roller leveler having a vertically spaced pair of shape correction roll units and a separate vertically spaced pair of flattening roll units, each of said units including a plurality of parallel work rolls, means for varying the distance between the upper and lower flattening roll units, and means for tilting one of the flattening roll units transversely; means independent of said first and second mentioned means for opening and closing the gap between the pair of upper and lower work rolls at the entry side of the flattening roll units.
Claim 13
Dependent Claim
92 words
In a roller leveler having a vertically spaced pair of shape correction roll units and a separate vertically spaced pair of flattening roll units, each of said units including a plurality of parallel work rolls, means for varying the distance between the upper and lower flattening roll units, and means for tilting one of the flattening roll units transversely; means independent of said first and second mentioned means for opening and closing the gap between the pair of upper and lower work rolls at the entry side of the flattening roll units.
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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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |