US3838900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearings for railway vehicle axles
Assignee: Federal Mogul Shoreham Ltd
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Filing: 1972-09-22
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Granted: 1974-10-01
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Expires: 1992-09-22
Abstract
Abstract The disclosure relates to a bearing for a railway vehicle comprising a bearing block having a part cylindrical recess in which a bearing liner is seated. Tapered keys are driven between one edge of the liner and a first fixed abutment to force the other edge of the liner against a second fixed abutment and to press the liner against the surface of the recess.
Inventors
- 👤 G Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:41
CPC Classifications
B; B61; B61F; B61F15/00; B61F15/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
173 words
A bearing for a railway vehicle axle comprising a bearing block having a part-cylindrical recess, the recess having two axially extending slots which are spaced apart around the recess, an elongated abutment located in one of the slots and projecting therefrom, a segmental arcuate bearing liner extending along the recess, said liner being formed in two parts which are located end to end in the recess with a gap between said parts, the liner having one axially extending edge in engagement with said abutment and a second axially extending edge projecting over the other of said slots, a second elongated abutment located in said other slot and having wedge faces which converge towards said second edge of the liner towards the center of the second abutment and two tapered keys driven between the second liner edge and the two wedge faces, said keys engaging the second liner edge along substantially the entire edge to apply a uniform circumferential force along the line and thereby hold the liner in intimate engagement with the recess.
Claim 2
Dependent Claim
173 words
A bearing for a railway vehicle axle comprising a bearing block having a part-cylindrical recess, the recess having two axially extending slots which are spaced apart around the recess, an elongated abutment located in one of the slots and projecting therefrom, a segmental arcuate bearing liner extending along the recess, said liner being formed in two parts which are located end to end in the recess with a gap between said parts, the liner having one axially extending edge in engagement with said abutment and a second axially extending edge projecting over the other of said slots, a second elongated abutment located in said other slot and having wedge faces which converge towards said second edge of the liner towards the center of the second abutment and two tapered keys driven between the second liner edge and the two wedge faces, said keys engaging the second liner edge along substantially the entire edge to apply a uniform circumferential force along the line and thereby hold the liner in intimate engagement with the recess.
Claim 3
Dependent Claim
56 words
A bearing as claimed in claim 1 wherein the side of the further slot engaged by the second abutment is undercut and the second abutment has a part-dovetail cross-section to engage the undercut so that the second abutment is prevented from moving in a radial direction out of the slot when the keys are in place.
Claim 4
Dependent Claim
19 words
A bearing as claimed in claim 1 wherein the keys are self-locking between the liner and the second abutment.
Claim 5
Dependent Claim
24 words
A bearing as claimed in claim 1 wherein the liner has flanges at both axial ends thereof which abut side faces of the block.
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |