US3842471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite roll
Assignee: Morgardshammar AB
•
Filing: 1973-07-09
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Granted: 1974-10-22
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Expires: 1993-07-09
Abstract
Abstract The composite roll comprises an inner member. At least one material engaging rolling ring member of a specially hard wearresistant material encircles the inner member. The inner member has a pair of supporting walls on either side of the rolling ring member. At least one of the supporting walls is pressed against the rolling ring member thereby placing the rolling ring member in compression. The one wall is secured to the inner member by means of a force-fit or shrinkage-fit so that the rolling ring member is pressed between the two walls on the inner member with a force that is sufficient to cause the rolling ring member to be clamped on the inner member and to rotate with the inner member.
Inventors
- 👤 K Polhall
- 👤 L Nordstrom
- 👤 R Persson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:07
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/02; B21B27/03; B21B27/035
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
112 words
A composite roll comprising an inner member, at least one rolling ring member of a hard wear-resistant material encircling said inner member, said inner member having a supporting wall on either side of the rolling ring member, said supporting walls applying compressive axial forces against the opposite surfaces of said rolling ring member to establish compressive stresses in the rolling ring member, at least one of said supporting walls being secured to said inner member by means of a force-fit, said supporting wall members applying a compressive force to said rolling ring member which is sufficient to cause the rolling ring member to rotate with the inner member during shaping of material.
Claim 2
Dependent Claim
112 words
A composite roll comprising an inner member, at least one rolling ring member of a hard wear-resistant material encircling said inner member, said inner member having a supporting wall on either side of the rolling ring member, said supporting walls applying compressive axial forces against the opposite surfaces of said rolling ring member to establish compressive stresses in the rolling ring member, at least one of said supporting walls being secured to said inner member by means of a force-fit, said supporting wall members applying a compressive force to said rolling ring member which is sufficient to cause the rolling ring member to rotate with the inner member during shaping of material.
Claim 3
Dependent Claim
23 words
A composite roll as defined in claim 1 wherein said supporting walls contact said rolling ring member only at the outer periphery thereof.
Claim 4
Dependent Claim
37 words
A composite roll as defined in claim 2 wherein the supporting walls are shaped with annular clearance between the inner member and the walls in the area axially adjacent a radial surface of the rolling ring member.
Claim 5
Dependent Claim
20 words
A composite roll according to claim 3 wherein the rolling ring member partly at least is tapering towards the periphery.
Claim 6
Dependent Claim
22 words
A composite roll according to claim 1 wherein said supporting walls comprise a pair of ring members force-fit on said inner member.
Claim 7
Dependent Claim
64 words
A composite roll according to claim 5 wherein said rolling ring member and said pair of ring members are mounted on an inwardly conical intermediate sleeve into which the inner member which is outwardly conical is pressed, said rolling ring member having an inner diameter that is loosely fit on said intermediate sleeve after the inner member has been pressed into the intermEdiate sleeve.
Claim 8
Dependent Claim
36 words
A composite roll according to claim 5 wherein the axial securing of said pair of ring members is increased by a pair of bosses on the inner member which engage said respective pair of ring members.
Claim 9
Independent Claim
106 words
A method of forming a composite roll, said method comprising the steps of providing an inner roll member, loosely encircling the inner roll member with a hard wear-resistant rolling ring, locating supporting walls on the opposite axial sides of said rolling ring, applying axial compressive forces to said rolling ring to thereby set up axial compressive stresses in said rolling ring member, and force fitting at least one of said supporting walls on said inner member while maintaining said axial compressive forces on said rolling ring member whereby said rolling ring is axially compressed between said supporting walls and is rotatable with said inner roll member.
Claim 10
Independent Claim
106 words
A method of forming a composite roll, said method comprising the steps of providing an inner roll member, loosely encircling the inner roll member with a hard wear-resistant rolling ring, locating supporting walls on the opposite axial sides of said rolling ring, applying axial compressive forces to said rolling ring to thereby set up axial compressive stresses in said rolling ring member, and force fitting at least one of said supporting walls on said inner member while maintaining said axial compressive forces on said rolling ring member whereby said rolling ring is axially compressed between said supporting walls and is rotatable with said inner roll member.
Claim 11
Dependent Claim
174 words
A composite roll comprising an inner member, at least one rolling ring member of a hard wear-resistant material encircling said inner member, said inner member having a supporting wall on either side of the rolling ring member, said supporting walls applying compressive axial forces against the opposite surfaces of said rolling ring member to establish compressive stresses in the rolling ring member, the supporting walls being shaped with annular clearance between the inner member and the walls in the area axially adjacent a radial surface of the rolling member whereby said supporting walls contact said rolling ring member only at the outer periphery thereof, cylindrical inner surfaces of at least one of the supporting walls being provided with clearance adjacent the rolling ring member, at least one of said supporting walls being secured to said inner member by means of a force-fit, said supporting wall members applying a compressive force to said rolling ring member which is sufficient to cause the rolling ring member to rotate with the inner member during shaping of material.
Claim 12
Dependent Claim
174 words
A composite roll comprising an inner member, at least one rolling ring member of a hard wear-resistant material encircling said inner member, said inner member having a supporting wall on either side of the rolling ring member, said supporting walls applying compressive axial forces against the opposite surfaces of said rolling ring member to establish compressive stresses in the rolling ring member, the supporting walls being shaped with annular clearance between the inner member and the walls in the area axially adjacent a radial surface of the rolling member whereby said supporting walls contact said rolling ring member only at the outer periphery thereof, cylindrical inner surfaces of at least one of the supporting walls being provided with clearance adjacent the rolling ring member, at least one of said supporting walls being secured to said inner member by means of a force-fit, said supporting wall members applying a compressive force to said rolling ring member which is sufficient to cause the rolling ring member to rotate with the inner member during shaping of material.
Claim 13
Dependent Claim
23 words
A composite roll as set forth in claim 9 wherein at least part of the rolling ring member tapers toward the periphery thereof.
Claim 14
Dependent Claim
27 words
A composite roll as set forth in claim 10 wherein portions of said supporting walls are tapered to conform with the tapered parts of the rolling ring.
Claim 15
Dependent Claim
24 words
A composite roll as set forth in claim 9 wherein said supporting walls comprise a pair of ring members force-fit on said inner member.
Claim 16
Dependent Claim
64 words
A composite roll according to claim 12 wherein said rolling ring member and said pair of ring members are mounted on an inwardly conical intermediate sleeve into which the inner member which is outwardly conical is pressed, said rolling ring member having an inner diameter that is loosely fit on said intermediate sleeve after the inner member has been pressed into the intermediate sleeve.
Claim 17
Dependent Claim
36 words
A composite roll according to claim 12 wherein the axial securing of said pair of ring members is increased by a pair of bosses on the inner member which engage said respective pair of ring member.
Claim 18
Dependent Claim
74 words
A method of forming a composite roll as set forth in claim 8 wherein the step of force fitting at least one of the supporting walls on the inner member while maintaining said axial compressive forces on said rolling ring member includes the steps of heating the supporting wall, placing the supporting wall on the inner roll member, applying axial compressive forces to the supporting walls, and allowing the heated supporting wall to cool.
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |