US4019361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manipulator for rolling mill
Assignee: SIFTELSEN FOR METALLURGISK FORSKNING
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Filing: 1976-02-04
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Granted: 1977-04-26
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Expires: 1996-02-04
Abstract
Abstract Manipulator for a rolling mill and particularly for a rolling mill for ingots or billets of steel. The manipulator comprises a pusher for pressing the ingot or billet through the roll-nip of the rolls at the beginning of rolling, and grab means for manipulating the ingot or billet during rolling when the pusher is raised up and the grab means can reach the ingot or billet.
Inventors
- 👤 Carl Sebardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:07
CPC Classifications
B; B25; B25J; B25J9/00; B25J9/10; B21; B21B; B21B39/00; B21B39/02; B21B39/06; B21B39/20; B21B39/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
165 words
Manipulator for feeding ingots or billets to the roll-nip of the rolls of a rolling mill, comprising support means adapted to be maintained in fixed relation on one side of a pair of cooperable rolls, a manipulator head carried by said support means for movement longitudinally and laterally thereof, said manipulator head including a rotatable head and means for rotating same, grab means adapted to releasably grasp one end of an ingot or billet rotatable with said rotatable head, and a pusher means carried pivotably for pivotal movement between an upper rest position above said grab means and in which upper rest position the grab means is movable to a forward position in which it can grasp an end of the ingot or billet and a lower working position in front of said rotatable head and in front of said grab means so as to be engageable with said one end of the ingot or billet to feed same to the roll-nip of the rolls.
Claim 2
Dependent Claim
165 words
Manipulator for feeding ingots or billets to the roll-nip of the rolls of a rolling mill, comprising support means adapted to be maintained in fixed relation on one side of a pair of cooperable rolls, a manipulator head carried by said support means for movement longitudinally and laterally thereof, said manipulator head including a rotatable head and means for rotating same, grab means adapted to releasably grasp one end of an ingot or billet rotatable with said rotatable head, and a pusher means carried pivotably for pivotal movement between an upper rest position above said grab means and in which upper rest position the grab means is movable to a forward position in which it can grasp an end of the ingot or billet and a lower working position in front of said rotatable head and in front of said grab means so as to be engageable with said one end of the ingot or billet to feed same to the roll-nip of the rolls.
Claim 3
Dependent Claim
29 words
Manipulator as claimed in claim 1, wherein the manipulator head is pivotable at the rear end thereof so that the front part thereof can selectively be raised and lowered.
Claim 4
Dependent Claim
36 words
Manipulator as claimed in claim 1, wherein said pusher means includes at the front portion thereof a rearwardly extending bar graspable by said grab means in order to fix the pusher means in its working position.
Claim 5
Dependent Claim
33 words
Manipulator as claimed in claim 1, wherein said pusher means is a peripherally extending member which in its working position peripherally encloses said rotatable head of the manipulator head and said grab means.
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) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |