US3566951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of equalizing stresses in the conveyance and guidance of continuous castings
Assignee: Vodafone GmbH
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Filing: 1968-02-26
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Granted: 1971-03-02
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Expires: 1988-02-26
Abstract
Abstract Conveying and guiding metal castings which had been cast in a mold in a continuous casting plant, by means of driven conveyor and support rollers. In order to preclude the formation of surface cracks and other faults in the castings, the supporting rollers are driven in such a manner that the rollers first encountered by the casting move at higher torque than subsequent rollers. Included are the travelling paths of the castings which have any shape, such as straight, curved or circular.
Inventors
- 👤 Hans Schrewe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:44
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/12; B22D11/128; B22D11/1282
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
81 words
A method of conveying and guiding metal castings from a mold in a continuous casting plant provided with a travelling path for said castings and driven conveyor and support rollers along said path, which comprises imparting to at least one of said support rollers at the start of said path a torque which is higher than that of the subsequent rollers so as to equalize occurring tensile stresses with compressive strains and prevent the occurrence of surface cracks in said castings.
Claim 2
Independent Claim
81 words
A method of conveying and guiding metal castings from a mold in a continuous casting plant provided with a travelling path for said castings and driven conveyor and support rollers along said path, which comprises imparting to at least one of said support rollers at the start of said path a torque which is higher than that of the subsequent rollers so as to equalize occurring tensile stresses with compressive strains and prevent the occurrence of surface cracks in said castings.
Claim 3
Dependent Claim
41 words
The method is defined in claim 1, wherein said rollers are disposed in pairs opposite each other along said path; at least one of said pairs at the start of said path being driven at higher torque than the succeeding pairs.
Claim 4
Dependent Claim
36 words
The method as defined in claim 1, wherein said path is a multiple-arced shaping path and at least one roller at the start of the shaping path is driven at higher torque than the succeeding rollers.
Claim 5
Dependent Claim
28 words
The method as defined in claim 3, wherein the rollers disposed in the breaks of said arcs are driven at at least equal torque as the subsequent rollers.
Claim 6
Dependent Claim
22 words
The method as defined in claim 4, wherein the rollers disposed in said breaks are driven at higher torque than subsequent rollers.
Claim 7
Dependent Claim
22 words
The method as defined in claim 1, wherein the torque of said rollers successively decreases in the travelling direction of said castings.
Claim 8
Independent Claim
29 words
The method as defined in claim l, wherein a plurality of successive rollers constitute groups, each group being driven at equal torque, but at higher torque than subsequent groups.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |