US3698225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittently acting rolling mill
Assignee: Vallourec Usines a Tubes de Lorraine Escaut SA
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Filing: 1969-12-29
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Granted: 1972-10-17
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Expires: 1989-12-29
Abstract
Abstract Intermittently acting rolling mill comprising continuous rotary drive means, a roll cage which is reciprocated longitudinally of the work, means by which said work is intermittently rotated, and means for converting the continuous rotary movement of said drive means to reciprocating movement to drive said cage and intermittent rotary movement to turn said work in synchronism with the movement of said cage.
Inventors
- 👤 Pierre Peytavin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:21
CPC Classifications
F; F16; F16H; F16H27/00; B; B21; B21B; B21B21/00; B21B21/06; B21B21/065; B21B35/00; B21B2035/005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
202 words
Intermittently acting rolling mill comprising a reciprocating roller cage, drive means for continuously rotating in a single direction a drive member, which member is connected to drive said roller cage through means for converting the continuous rotary motion of said drive member to reciprocating movement by said cage, shaft means substantially parallel to the direction of reciprocation of said cage and connected to be continuously driven in synchronism with said drive member, at least one rotatable clamp for gripping a product being rolled in said roller cage, a device through which said at least one clamp is driven from said shaft means, which device converts the continuous rotation of said shaft means to intermittent rotation by said at least one clamp in synchronism with the reciprocating movement of said cage, a carriage for supporting said prOduct, means for continuously driving said carriage in said direction of reciprocation, oscillating means mounted on said carriage for intermittently advancing said product in the direction of reciprocation of said cage, and means for converting continuous rotary motion to oscillating motion which connects said shaft means to drive said oscillating means and causes said oscillating means to oscillate in synchornism with the reciprocating movement of said cage.
Claim 2
Dependent Claim
202 words
Intermittently acting rolling mill comprising a reciprocating roller cage, drive means for continuously rotating in a single direction a drive member, which member is connected to drive said roller cage through means for converting the continuous rotary motion of said drive member to reciprocating movement by said cage, shaft means substantially parallel to the direction of reciprocation of said cage and connected to be continuously driven in synchronism with said drive member, at least one rotatable clamp for gripping a product being rolled in said roller cage, a device through which said at least one clamp is driven from said shaft means, which device converts the continuous rotation of said shaft means to intermittent rotation by said at least one clamp in synchronism with the reciprocating movement of said cage, a carriage for supporting said prOduct, means for continuously driving said carriage in said direction of reciprocation, oscillating means mounted on said carriage for intermittently advancing said product in the direction of reciprocation of said cage, and means for converting continuous rotary motion to oscillating motion which connects said shaft means to drive said oscillating means and causes said oscillating means to oscillate in synchornism with the reciprocating movement of said cage.
Claim 3
Dependent Claim
27 words
Rolling mill as claimed in claim 1 in which said at least one clamp is stationary and permit axial sliding therein of the product to be rolled.
Claim 4
Dependent Claim
29 words
Rolling mill as claimed in claim 1 in which the means for converting continuous rotation to intermittent rotation comprises a worm and tangent wheel transmission of the Ferguson type.
Claim 5
Dependent Claim
41 words
Rolling mill is claimed in claim 1 in which the means for driving said carriage is a threaded rod substantially parallel to the direction of reciprocation of said cage and connected to be continuously rotated in synchronism with said drive member.
Claim 6
Dependent Claim
25 words
Rolling mill is claimed in claim 4 in which said threaded rod is driven by a hydraulic motor driven by a variable output hydraulic pump.
Claim 7
Dependent Claim
65 words
Rolling mill as claimed in claim 5 in which said means for converting continuous rotary motion to oscillating motion comprises a cam rotatably mounted on said carriage and in which said oscillating means is a pivotally mounted arm likewise mounted on said carriage and actuated by said cam to periodically advance the product being rolled, said continuously rotating shaft being connected to rotate said cam.
Claim 8
Dependent Claim
89 words
Rolling mill as claimed in claim 6 in which said carriage comprises a sleeve mounted to slide along the path of travel of the product to be rolled, in alignment with the roller cage which act on said product, spring means biassing said sleeve toward said cage and a cylinder coaxially and rotatably mounted in said sleeve, said cylinder being provided with a resiliently mounted stop which permits the product to be rolled to pass through said cylinder in one direction, but prevents its passage in the other direction.
Claim 9
Dependent Claim
30 words
Rolling mill as claimed in claim 5 comprising a source of pressure fluid and means for connecting said source to said hydraulic motor to drive it in a reverse direction.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |