Patent US3718020A successfully refreshed from Google Patents.
US3718020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: Siemag Siegener Maschinenbau GmbH
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Filing: 1971-03-01
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Granted: 1973-02-27
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Expires: 1991-03-01
Abstract
Abstract A rolling mill having cantilevered rolls of generally conical shape whose axes lie at an acute angle to the direction of stock movement.
Inventors
- 👤 H Leitner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:10
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/02; B21B13/00; B21B13/008; B21B31/00; B21B31/16; B21B31/18; B21B33/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
98 words
A roll head with cantilever-supported rolls inclined toward the rolling stock axis and adjustable relative to the rolling stock, characterized by the fact that the shafts (12) of the conical rolls (1) are formed as hollow adjusting shafts in which sliding sleeves (5) are positioned and secured against turning, that the axial positions of the sleeves determine the adjusting position, and that tension rods (6) extend through the sliding sleeves, have collars (7) resting on an extension (8) of the sliding sleeves, and have threads which tighten the conical rolls against the free end of the sliding sleeves.
Claim 2
Dependent Claim
98 words
A roll head with cantilever-supported rolls inclined toward the rolling stock axis and adjustable relative to the rolling stock, characterized by the fact that the shafts (12) of the conical rolls (1) are formed as hollow adjusting shafts in which sliding sleeves (5) are positioned and secured against turning, that the axial positions of the sleeves determine the adjusting position, and that tension rods (6) extend through the sliding sleeves, have collars (7) resting on an extension (8) of the sliding sleeves, and have threads which tighten the conical rolls against the free end of the sliding sleeves.
Claim 3
Dependent Claim
44 words
A roll head as recited in claim 1 characterized by the fact that the sliding sleeves (5) are designed with a thread which engages threads formed on adjusting sleeves (16) which are arranged inside hollow shaft (12) and are secured in the axial direction.
Claim 4
Dependent Claim
28 words
A roll head as recited in claim 2, characterized by the fact that the sliding sleeves (5) are connected to the hollow shafts (12) to prevent relative turning.
Claim 5
Dependent Claim
36 words
A roll head as recited in claim 1 characterized by the fact that adjusting sleeves (16) are provided, and each adjusting sleeve (16) is turnable relative to the hollow shaft (12) by means of driving devices.
Claim 6
Dependent Claim
29 words
A roll head as recited in claim 1 characterized by the fact that adjusting sleeves (16) are provided, and the adjusting sleeves (16) can be connected to driving devices.
Claim 7
Dependent Claim
63 words
A roll head as recited in claim 1 characterized by the fact that adjusting sleeves (16) are provided, and the adjusting sleeves (16) are associated selectively to controllable coupling sleeves (20) which, in their first position, connect the adjusting sleeves with the shaft housing (30) to prevent relative turning and in their operating position connect the adjusting sleeves to the hollow shaft (12).
Claim 8
Dependent Claim
30 words
A roll head as recited in claim 6 characterized by the fact that the coupling sleeves (20) are provided with springs (22) which press the coupling sleeves against a support.
Claim 9
Dependent Claim
25 words
A roll head as recited in claim 6 characterized by the fact that each coupling sleeve (20) is provided with a pressure fluid adjusting device.
Claim 10
Dependent Claim
47 words
A roll head as recited in claim 6 characterized by the fact that adjusting areas are provided, and the adjusting devices of the coupling sleeves (20) operate against springs (26) which, in the working position of the coupling sleeves, lift their adjusting areas from the coupling sleeves.
Claim 11
Dependent Claim
31 words
A roll head as recited in claim 8 characterized by the fact that the cylinder spaces of the pressure fluid adjusting device are connected to an annular pressure fluid line (33).
Claim 12
Dependent Claim
34 words
A roll head as recited in claim 10 characterized by the fact that the annular pressure fluid line (33) is equipped with a connecting fitting (35) for the connection to a pressure fluid source.
Claim 13
Dependent Claim
34 words
A roll head as recited in claim 10 characterized by the fact that shut-off valves are arranged between the annular pressure fluid line (33) and the cylinder spaces of the pressure fluid adjusting devices.
Claim 14
Dependent Claim
45 words
A roll head as recited in claim 1 characterized by the fact that carrier parts (2) are provided, and the carrier parts (2) are provided in their root area contain a predetermined breaking point (3) which is under stress by adjust forces and driving momentum.
Claim 15
Dependent Claim
59 words
A roll head as recited in claim 1 characterized by the fact that carrier parts (2) are provided, and the carrier part (2) is of such a cone-shaped design at the side facing the sliding sleeve, that the vertex angle of the cone exceeds always double the slope angle of the roll shaft relative to the rolling stock axis.
Claim 16
Dependent Claim
57 words
A roll head as recited in claim 1 characterized by the fact that between opposed shoulder areas of the tension rod (38) and other parts there are chambers (42) formed to which pressure fluid is admitted to stretch the tension rod and through this action relieve stress of the threads which keep the rolls (36) in tension.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |