US3918774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bowed roll
Assignee: Sw Industries Inc
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Filing: 1973-11-07
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Granted: 1975-11-11
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Expires: 1993-11-07
Abstract
Abstract A bowed roll is provided comprising an elongated shaft, a series of spools disposed about the shaft for rotation and a plurality of bearings disposed along the shaft. Each of the bearings has an inner race in contact with the shaft and an outer race in contact with one of the spools. The bearings are maintained in position by a plurality of elongated tubular spacers disposed about the shaft with each of the spacers being positioned between a pair of bearings. Each of the spacers is longitudinally split and has its opposite ends tapered and abutting against surfaces of the side walls of the inner races of the pair of bearings which are complementarily tapered.
Inventors
- 👤 Charles B Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:18
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/003
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
227 words
In a bowed roll of the type having an elongated curved shaft having opposed ends, a plurality of spools spaced along said shaft and disposed thereabout and a plurality of bearings spaced along said shaft, each of said bearings having an inner race disposed about said shaft and an outer race supporting one of said spools, the improvement comprising: means for preventing the further longitudinal separation oF the bearings closest said opposed ends and a plurality of longitudinally split tubular spacers disposed about said shaft, each of said spacers having an inner diameter disposed about said shaft, an outer diameter, and the length of said spacer measured along said inner diameter being greater than the length measured along said outer diameter, each of said spacers being unattached to said shaft and positioned between a pair of adjacent bearings and having end portions abutting surfaces of the inner races of a pair of adjacent bearings wherein each of said spacer end portions is tapered and the surfaces of the inner races of the adjacent pair of bearings is tapered at a complementary angle to mate with the spacer tapered ends whereby to take up any dimensional differences between said bearing inner race and shaft and locate and hold the bearing concentric to the shaft and to urge each of said spacers against said shaft for frictional engagement therewith.
Claim 2
Dependent Claim
227 words
In a bowed roll of the type having an elongated curved shaft having opposed ends, a plurality of spools spaced along said shaft and disposed thereabout and a plurality of bearings spaced along said shaft, each of said bearings having an inner race disposed about said shaft and an outer race supporting one of said spools, the improvement comprising: means for preventing the further longitudinal separation oF the bearings closest said opposed ends and a plurality of longitudinally split tubular spacers disposed about said shaft, each of said spacers having an inner diameter disposed about said shaft, an outer diameter, and the length of said spacer measured along said inner diameter being greater than the length measured along said outer diameter, each of said spacers being unattached to said shaft and positioned between a pair of adjacent bearings and having end portions abutting surfaces of the inner races of a pair of adjacent bearings wherein each of said spacer end portions is tapered and the surfaces of the inner races of the adjacent pair of bearings is tapered at a complementary angle to mate with the spacer tapered ends whereby to take up any dimensional differences between said bearing inner race and shaft and locate and hold the bearing concentric to the shaft and to urge each of said spacers against said shaft for frictional engagement therewith.
Claim 3
Dependent Claim
27 words
The bowed roll in accordance with claim 1 wherein said spacer end portions and bearing inner race surfaces are each tapered at an angle of substantially 45*.
References Cited (Backward Citations)
US1278060A
Cited
US2582280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |