US3718956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Built-up sleeve roll for rolling and method of making the same
Assignee: Proterial Ltd
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Filing: 1971-10-07
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Granted: 1973-03-06
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Expires: 1991-10-07
Abstract
Abstract In a built-up sleeve for the use of rolling the inner surface of the cylindrical sleeve and the outer surface of the shaft on which the sleeve is mounted are coated with a binder containing hard tough and sharp angled particles of the diameter in average of not less than 0.05 mm (350 mesh in granularity). After being coated with the binder, the cylindrical sleeve and the shaft are fitted together by shrinkage fit or expansion fit. The bending of the shaft and slippage of the sleeve are well prevented by the construction as above.
Inventors
- 👤 Y Sekimoto
- 👤 I Korenaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:11
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/02; B21B27/03; B23; B23P; B23P11/00; B23P11/02; B23P11/025; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49549; Y10T29/49552; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/49885
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
The method of making a sleeve roll used for rolling comprising applying a binder containing hard, tough and sharp angled particles having diameter of not less than 350 mesh on at least one of the inner surface of the cylindrical sleeve and the outer surface of the shaft on which said sleeve is to be mounted, and fixing said sleeve on the shaft by shrinkage fit or expansion fit by making said particles wedged in the surfaces of the sleeve and the shaft, whereby the residual bending of the shaft and the slippage of the sleeve are prevented.
Claim 2
Independent Claim
98 words
The method of making a sleeve roll used for rolling comprising applying a binder containing hard, tough and sharp angled particles having diameter of not less than 350 mesh on at least one of the inner surface of the cylindrical sleeve and the outer surface of the shaft on which said sleeve is to be mounted, and fixing said sleeve on the shaft by shrinkage fit or expansion fit by making said particles wedged in the surfaces of the sleeve and the shaft, whereby the residual bending of the shaft and the slippage of the sleeve are prevented.
Claim 3
Dependent Claim
57 words
The method of making a built-up sleeve roll used for rolling as defined in claim 1 wherein said particles have hardness not less than Hv 170 and said sleeve is fixed to the shaft with a shearing strength represented by (shearing stress per a unit area)/ (pressure exerted on a unit area) of not less than 1.0.
Claim 4
Dependent Claim
19 words
The method of making a built-up sleeve roll as defined in claim 1 wherein said particles are steel grid.
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) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |