Patent US3865443A successfully refreshed from Google Patents.
US3865443A
Expired / Lapsed
US
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Resilient side bearings
Assignee: Avon Technologies PLC
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Filing: 1973-09-04
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Granted: 1975-02-11
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Expires: 1993-09-04
Abstract
Abstract A resilient bearer on a railway vehicle bogie has a resilient element in the form of a resiliently compressible hollow block of elastomeric material e.g., rubber. The block is a thick walled rubber tube and is mounted between plates. The ends of the plates are turned inwardly to give the bearer the desired longitudinal resilience. Also, a radially disposed sleeve attached to one of the plates and a spigot attached to the other of the plates the sleeve and spigot being movable telescopically, the spigot within the sleeve, and being separated by a resilient bush. This gives increased control of the behavior of the bearer against shear in the longitudinal (axial) direction of the radially compressed tube and against rolling shear of that tube.
Inventors
- 👤 Raymond Frederick James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:23
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/42; F16F1/44; B; B61; B61F; B61F1/00; B61F1/08; B61F1/14; F16F1/371; F16F2236/00; F16F2236/02; F16F2236/025
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
117 words
A railway vehicle resilient bearer for positioning between a vehicle body and a bogie to frictionally engage one of them, the bearer having two opposed plates, and a resiliently compressible thick-walled, open-ended hollow tube of elastomeric material between the plates with its axis parallel to the plates, respective ones of the two said plates being secured against repsective ones of opposite faces of the tube to extend generally parallel to each other, wheReby upon the plates moving towards each other the tube is compressed in its radial direction against the resilience of the elastomeric material of the tube, and restraint upon the plates moving parallel to each other is provided by the elastomeric material of the tube.
Claim 2
Dependent Claim
117 words
A railway vehicle resilient bearer for positioning between a vehicle body and a bogie to frictionally engage one of them, the bearer having two opposed plates, and a resiliently compressible thick-walled, open-ended hollow tube of elastomeric material between the plates with its axis parallel to the plates, respective ones of the two said plates being secured against repsective ones of opposite faces of the tube to extend generally parallel to each other, wheReby upon the plates moving towards each other the tube is compressed in its radial direction against the resilience of the elastomeric material of the tube, and restraint upon the plates moving parallel to each other is provided by the elastomeric material of the tube.
Claim 3
Dependent Claim
23 words
A resilient bearer according to claim 1 wherein at least one plate has its ends turned inwardly over the ends of the tube.
Claim 4
Dependent Claim
24 words
A resilient bearer according to claim 1 wherein each plate is clamped against the face of the tube by a member within the tube.
Claim 5
Dependent Claim
22 words
A resilient bearer according to claim 1 wherein one of the plates has a friction pad secured to its exposed outer face.
Claim 6
Dependent Claim
35 words
A resilient bearer according to claim 1 which has extending between the two plates and diametrically of the tube, means additional to the tube for restraining the plates against relative displacement parallel to each other.
Claim 7
Dependent Claim
80 words
A resilient bearer according to claim 5 wherein the said means includes a sleeve secured to one of the plates, a spigot secured to the other of the plates, the spigot fitting freely within the sleeve, a bushing between the spigot and the sleeve and compressed by relative displacement of the sleeve and the spigot in a direction axially of the tube, the spigot and sleeve being freely movable relative to each other in a direction radial of the tube.
Claim 8
Dependent Claim
55 words
A resilient bearer according to claim 6 wherein the bushing includes an annular elastomeric element and an annular rigid element fast with the elastomeric element, the elastomeric element being immovable relative to one of the spigot and the sleeve and the rigid element being slidable relative to the other of the spigot and the sleeve.
Claim 9
Dependent Claim
50 words
A resilient bearer according to claim 6 wherein said spigot and sleeve are half way along the length of the said plates taken in the axial direction of the tube and the said clamping members within the tube are situated on each longitudinal side of the spigot and sleeve arrangement.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |