Patent US2640351A successfully refreshed from Google Patents.
US3777964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rod entry guide
Assignee: Hydro Rene Luc
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Filing: 1972-04-24
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Granted: 1973-12-11
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Expires: 1992-04-24
Abstract
Abstract Mechanism consisting of a large driven pulley and a plurality of small rollers aligned along about 90* of the periphery of the driven pulley for changing the direction of rolled rod coming from a rod mill from horizontal to vertical for delivery to a laying reel or other rod collecting mechanism. The small rollers in one form are carried by pivoted arms mounted on a support and are individually spring-pressed toward the driven pulley permitting acceptance therebetween of the oncoming rod and the application of correct pressure against the rod as it changes direction from horizontal to vertical. In another form, the small rollers are carried by the links of a chain extending along the driven pulley perimeter. The chain is spring-loaded to permit entry of the rod and between the pulley and rollers.
Inventors
- 👤 R Kruner
- 👤 H Thelen
- 👤 G Grunwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:43
CPC Classifications
B; B21; B21B; B21B41/00; B21C; B21C47/00; B21C47/02; B21C47/10; B21C47/14; B21C47/34; B21C47/3433; B21C47/3441
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
117 words
Means in a rod mill for changing the direction of travel of a rapidly moving bendable rod, said means comprising a main driven grooved pulley about which said rod passes, a plurality of rotatable small grooved rollers mounted adjacent said main pulley for engaging and holding said rod against said main pulley as the direction of the moving rod changes, said small rollers being closely adjacent each other and aligned with said main pulley and extending along the periphery of said main pulley for an angular distance substantially equal to the desired angular change in direction of said rod, and guide members spaced radially from the periphery of said main pulley and positioned between said small rollers.
Claim 2
Dependent Claim
117 words
Means in a rod mill for changing the direction of travel of a rapidly moving bendable rod, said means comprising a main driven grooved pulley about which said rod passes, a plurality of rotatable small grooved rollers mounted adjacent said main pulley for engaging and holding said rod against said main pulley as the direction of the moving rod changes, said small rollers being closely adjacent each other and aligned with said main pulley and extending along the periphery of said main pulley for an angular distance substantially equal to the desired angular change in direction of said rod, and guide members spaced radially from the periphery of said main pulley and positioned between said small rollers.
Claim 3
Dependent Claim
57 words
The means set forth in claim 1, said small rollers being movable toward and away from said driven pulley and resilient means for continuously urging said small rollers toward said main pulley to hold said rod therebetween and in the absence of rod to hold said small rollers against said driven pulley to cause them to rotate.
Claim 4
Dependent Claim
24 words
The means set forth in claim 1, the diameter of said small rollers being not more than one-fifth the diameter of said main pulley.
Claim 5
Dependent Claim
54 words
Means as set forth in claim 1, the mounting for said rollers comprising a curved support, each small roller being mounted for rotation on an arm which is pivoted to said support, the pivot of each said arm being angularly displaced with respect to said main pulley from the axis of its said roller.
Claim 6
Dependent Claim
24 words
Means as set forth in claim 4, and spring means acting against each said arm to urge said small rollers toward said main pulley.
Claim 7
Dependent Claim
32 words
Means as set forth in claim 4, the pivot of each said arm being at a greater distance from the axis of said main pulley than the axis of its said roller.
Claim 8
Dependent Claim
22 words
Means as set forth in claim 1, said small rollers being mounted between interconnected pairs of side plates forming a chain-like assembly.
Claim 9
Dependent Claim
50 words
Means as set forth in claim 7, the said chain-likE assembly formed by the said pairs of side plates having a fixed point of connection on the delivery side of said pulley and having a spring on the entry side of said pulley urging said small rollers toward said pulley.
Claim 10
Dependent Claim
14 words
Means as set forth in claim 1, said small rollers comprised of cemented carbide.
Claim 11
Dependent Claim
53 words
Means as set forth in claim 1, the rod engaging periphery of said driven pulley comprised of a plurality of successive guide members pivoted to said pulley which members may swing outwardly under centrifugal force as said pulley rotates and means on said pulley for limiting the outward movement of said guide members.
Claim 12
Dependent Claim
42 words
Means as set forth in claim 1, said driven pulley and said rollers having a plurality of passes and a switch on the entry side of said driven pulley for directing the leading end of an oncoming rod to a selected pass.
Claim 13
Dependent Claim
30 words
Means as set forth in claim 1, said driven pulley having a plurality of passes and means whereby said oncoming rod can be directed into a selected driven pulley pass.
Claim 14
Dependent Claim
169 words
Means in a rolling mill for changing the direction of travel of a rapidly moving bendable product, said means comprising: a main driven grooved pulley about which the product passes; a plurality of rotatable small grooved rollers mounted adjacent to said main pulley for engaging and holding the product against said main pulley as the direction of the moving product changes, said rollers being closely adjacent each other and aligned with said main pulley and extending along the periphery of said main pulley for an angular distance substantially equal to the desired angular change in direction of the product, the mounting for said rollers including a curved support, each of said rollers being rotatably carried on an arm which is pivoted to said support, the pivot of each said arm being angularly displaced with respect to said main pulley from the axis of its said roller, and guide members secured to said support between said rollers, said guide members being spaced radially from the periphery of said main pulley.
Claim 15
Dependent Claim
169 words
Means in a rolling mill for changing the direction of travel of a rapidly moving bendable product, said means comprising: a main driven grooved pulley about which the product passes; a plurality of rotatable small grooved rollers mounted adjacent to said main pulley for engaging and holding the product against said main pulley as the direction of the moving product changes, said rollers being closely adjacent each other and aligned with said main pulley and extending along the periphery of said main pulley for an angular distance substantially equal to the desired angular change in direction of the product, the mounting for said rollers including a curved support, each of said rollers being rotatably carried on an arm which is pivoted to said support, the pivot of each said arm being angularly displaced with respect to said main pulley from the axis of its said roller, and guide members secured to said support between said rollers, said guide members being spaced radially from the periphery of said main pulley.
Claim 16
Dependent Claim
64 words
The means as claimed in claim 13 wherein said curved support is mounted for pivotal movement relative to said main pulley between a closed operative position at which said rollers are in contact with said main pulley in the absence of product therebetween, and an open inoperative position at which said rollers are remote from the main pulley and accessable for inspection and replacement.
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |