US4420960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for hot-rolling of metal workpieces
Assignee: Estel Hoesch Werke AG
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Filing: 1981-05-05
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Granted: 1983-12-20
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Expires: 2001-05-05
Abstract
Abstract A hot-rolling mill has a rough-rolling section and a finish-rolling section. These sections are transversely offset from one another and the end of the rough-rolling section is connected to the beginning of the finish-rolling section by a heating station. Within the heating station, at the end of the rough-rolling station, is mounted a take-up coiler for the rough product. This coiler can transfer its product coil to a pay-out coiler which is either movable transversely between the two sections so that it can move to the second path and feed the product into the second or is fixedly mounted at the beginning of the second (finish-rolling) section in which case a transporting device is provided which transports the coils from the take-up coiler to the pay-out coiler.
Inventors
- 👤 Hans W. Grasshoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:31
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/004; B21B1/00; B21B1/22; B21B1/30; B21B1/32; B21B1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
324 words
Arrangement for continuous hot-rolling of metal workpieces, comprising: first means, including at least one roughing stand in which the workpiece is rough-rolled to a product having roughly the desired dimensions while advancing along a first path; second means, including at least one finishing stand in which the rough-rolled product is finish-rolled to the final desired dimensions while advancing along a second path which is offset from said first path; a heat-retaining station extending between an end of said first path and a beginning of said second path; a take-up coiler in said heat-retaining station at a location adjacent said end of said first path for coiling up the rough-rolled product; and transporting means in said heat-retaining station for transporting the coiled-up rough product from said location to said beginning of said second path; said transporting means and take-up coiler separating said first means from said second means inside a continuous rolling train, said product being retained hot in passage through said take-up coiler and transporting means, winding of the coil producing a heating effect for retaining said coil in heated condition due to reduction in exposed surface from which heat flow may take place, said heat-retaining station comprising a coiling and uncoiling station, said heating station being free from externally supplied heat; said first and second paths being laterally offset from one another, said transporting means comprising an uncoiler for paying out coiled rough product, said uncoiler being movable between said location and said beginning of said second paths, said first and second paths being so offset relative to one another as to form with said heat retaining station a Z-shaped outline, said roughing stand of said first means being a reversing stand and said first means further including a string of run-out rollers extending from said reversing stand to said heat-retaining station and extending underneath the take-up coiler and the transporting means and beyond said heat-retaining station in line with said first path.
Claim 2
Dependent Claim
324 words
Arrangement for continuous hot-rolling of metal workpieces, comprising: first means, including at least one roughing stand in which the workpiece is rough-rolled to a product having roughly the desired dimensions while advancing along a first path; second means, including at least one finishing stand in which the rough-rolled product is finish-rolled to the final desired dimensions while advancing along a second path which is offset from said first path; a heat-retaining station extending between an end of said first path and a beginning of said second path; a take-up coiler in said heat-retaining station at a location adjacent said end of said first path for coiling up the rough-rolled product; and transporting means in said heat-retaining station for transporting the coiled-up rough product from said location to said beginning of said second path; said transporting means and take-up coiler separating said first means from said second means inside a continuous rolling train, said product being retained hot in passage through said take-up coiler and transporting means, winding of the coil producing a heating effect for retaining said coil in heated condition due to reduction in exposed surface from which heat flow may take place, said heat-retaining station comprising a coiling and uncoiling station, said heating station being free from externally supplied heat; said first and second paths being laterally offset from one another, said transporting means comprising an uncoiler for paying out coiled rough product, said uncoiler being movable between said location and said beginning of said second paths, said first and second paths being so offset relative to one another as to form with said heat retaining station a Z-shaped outline, said roughing stand of said first means being a reversing stand and said first means further including a string of run-out rollers extending from said reversing stand to said heat-retaining station and extending underneath the take-up coiler and the transporting means and beyond said heat-retaining station in line with said first path.
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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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |