US3584489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: Vallourec Usines a Tubes de Lorraine Escaut SA
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Filing: 1968-12-19
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Granted: 1971-06-15
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Expires: 1988-12-19
Abstract
Abstract A rolling mill comprising a bearing block supporting the rolls and adapted to be subjected to reciprocating movement, said bearing block being integrally connected to a mobile mechanism comprising two eccentric masses, turning in opposite direction in synchronism with the reciprocatory displacements of the bearing block.
Inventors
- 👤 Pierre Peytavin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:17
CPC Classifications
B; B21; B21B; B21B21/00; B21B21/005; B21B35/00; B21B2035/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
97 words
A rolling mill comprising a bearing block mounting a pair of rolls, means for reciprocating said bearing block, said means comprising a drive means for producing rotary motion, transmission means for converting said rotary motion to reciprocating motion connecting said drive means to said bearing block, said transmission means comprising two crankshafts driven in opposite directions by said drive means, each crankshaft carrying an eccentric mass and being connected to a connecting rod, said connecting rod being in turn pivotally connected to said bearing block, whereby said bearing block and rolls are counterbalanced during their reciprocating motion.
Claim 2
Dependent Claim
97 words
A rolling mill comprising a bearing block mounting a pair of rolls, means for reciprocating said bearing block, said means comprising a drive means for producing rotary motion, transmission means for converting said rotary motion to reciprocating motion connecting said drive means to said bearing block, said transmission means comprising two crankshafts driven in opposite directions by said drive means, each crankshaft carrying an eccentric mass and being connected to a connecting rod, said connecting rod being in turn pivotally connected to said bearing block, whereby said bearing block and rolls are counterbalanced during their reciprocating motion.
Claim 3
Dependent Claim
34 words
Rolling mill as claimed in claim 1 in which each crankshaft is fixed to a toothed wheel, with the teeth of said wheels engaging each other to synchronize the movements of the two cranks.
Claim 4
Dependent Claim
13 words
Rolling mill as claimed in claim 1 in which said crankshafts are horizontal.
Claim 5
Dependent Claim
12 words
Rolling mill as claimed in claim 1 in which crankshafts are vertical.
Claim 6
Dependent Claim
17 words
Rolling mill as claimed in claim 1 comprising a hydraulic motor connected to drive said eccentric masses.
Claim 7
Dependent Claim
25 words
Rolling mill as claimed in claim 1 in which each crankshaft, is driven by a hydraulic motor, the rotor of which is directly coupled thereto.
Claim 8
Dependent Claim
26 words
Rolling mill as claimed in claim 1 in which each crankshaft is driven by two hydraulic motors, the drive members of which are directly coupled thereto.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |