US3729972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for rolling
Assignee: Individual
•
Filing: 1972-02-01
•
Granted: 1973-05-01
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Expires: 1992-02-01
Abstract
Abstract A continuous small section rolling mill is provided including a roughing mill line and a plurality of finishing mill lines spaced therefrom, the lines being operated so that the output from the last stand of the roughing mill line is approximately the same as the product of the combined intake speed of the several finishing lines, a coil furnace in front of each finishing mill line, coiling means in each furnace, a distribution guide for selectively feeding stock from the roughing mill line to each coiling means and delivery guide means at each furnace whereby the stock can be directed to the finishing mill line associated with said furnace.
Inventors
- 👤 F Kocks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:53
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/02; B21C47/10; B21C47/14; B21C47/143; B21B; B21B1/00; B21B1/16; B21B1/18; B21B41/00; B21B39/00; B21B39/14; B21B39/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
161 words
A continuous small section rolling mill comprising a rough rolling line, a plurality of finishing lines, the lines being adapted to be operated so that the output speed of the stock from the last stand of the rough rolling line is approximately the same as or lower than the product of the intake speed of the stock into the first stand of the finishing lines and the number of finishing lines, a separate coil furnace in front of each finishing line, coiling means in each such furnace, a distributing guide for selectively feeding the stock from the rough rolling line successively to each said coiling means of the individual coil furnaces, the coiling means of the coil furnaces being automatically reversible directly before the rear end of the stock from the rough rolling line is drawn in and delivery guide means at each furnace whereby the stock can be directed towards the finishing line with which the coil furnace is associated.
Claim 2
Dependent Claim
161 words
A continuous small section rolling mill comprising a rough rolling line, a plurality of finishing lines, the lines being adapted to be operated so that the output speed of the stock from the last stand of the rough rolling line is approximately the same as or lower than the product of the intake speed of the stock into the first stand of the finishing lines and the number of finishing lines, a separate coil furnace in front of each finishing line, coiling means in each such furnace, a distributing guide for selectively feeding the stock from the rough rolling line successively to each said coiling means of the individual coil furnaces, the coiling means of the coil furnaces being automatically reversible directly before the rear end of the stock from the rough rolling line is drawn in and delivery guide means at each furnace whereby the stock can be directed towards the finishing line with which the coil furnace is associated.
Claim 3
Dependent Claim
74 words
A rolling mill as claimed in claim 1, in which a curved combined intake and output pipe is connected to the coil furnace, and can be turned automatically towards a delivery guide pipe leading to the respective finishing line directly after the rear end of the stock has been drawn in and can be turned towards the respective distributing guide pipe from the rough rolling line after the coil furnace has been emptied again.
Claim 4
Dependent Claim
54 words
A rolling mill as claimed in claim 1, in which a handling chamber of the coil furnace is formed between a vertical cylinder jacket and a concentric core and a coiling device, including a layering pipe and operable on the Edenborn principle, is disposed above the handling chamber for feeding and extracting the stock.
Claim 5
Dependent Claim
38 words
A rolling mill as claimed in claim 3, in which two stock driving pulleys are drivingly interconnected with the layering pipe whereby the speed of the two driving pulleys is synchronized with the speed of the layering pipe.
Claim 6
Dependent Claim
28 words
A rolling mill as claimed in claim 4, in which a common motor is provided for rotating the layering pipe and the two driving pulleys through respective transmissions.
Claim 7
Dependent Claim
27 words
A rolling mill as claimed in claim 4, in which serially connected hydrostatic motors are provided for respectively rotating the layering pipe and the two driving pulleys.
Claim 8
Dependent Claim
42 words
A rolling mill as claimed in claim 3 in which the lower end of the layering pipe is provided with a plate arranged concentrically relative to the axis of the coil furnace, said plate covering the upper opening of the furnace chamber.
Claim 9
Dependent Claim
27 words
A rolling mill as claimed in claim 1 wherein the entire coiling means is arranged to be swivelled or slid out of the reGion of the furnace.
Claim 10
Dependent Claim
43 words
A rolling mill as claimed in claim 1 wherein a sensor is provided a short distance in front of the coiling furnace for detecting the end of the stock running through and providing a signal for reversing the drive of the coiling device.
Claim 11
Dependent Claim
36 words
A rolling mill as claimed in claim 9, in which a second sensor is provided in front of the first mentioned sensor for producing a signal to initiate a slow speed drive of the coiling device.
References Cited (Backward Citations)
US440696A
Cited
US3625043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |