Patent US3884157A successfully refreshed from Google Patents.
US3884157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car bogie
Assignee: ANF Industrie
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Filing: 1973-04-13
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Granted: 1975-05-20
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Expires: 1993-04-13
Abstract
Abstract In a multi-axle bogie for high-speed railway vehicles, the braking forces, and/or propulsion forces, exerted between the vehicle body and track are transmitted from the vehicle body to the bogie by a pair of parallel links connected to a crossbar, all lying substantially in the plane of the wheel axles so that substantially no turning movement is produced to cause galloping, or chattering, of the bogie.
Inventors
- 👤 Andre E Pelabon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:24
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/16; B61F5/20; B61F3/00; B61F3/02; B61F3/08; B61F5/22; B61F5/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
209 words
In a system for transmitting forces between a railway car and a bogie which supports said car, the combination including a rigid bogie frame means including a pair of side members and including means to rotatably support at least two pairs of trackengaging wheels, a vertical pivot element fixedly attached to and projecting downwardly from the underside of the car and located along the longitudinal centerline thereof, a horizontal transverse crossbar pivotally joined to said vertical pivot element at the midpoint of the crossbar to constrain longitudinal displacement of the bogie with respect to the car while permitting lateral and rotational displacement, the extremities of said crossbar being respectively pivotally connected to one end of each of a pair of force transmitting links disposed generally horizontally in the direction of movement of the bogie, the other ends of said links being respectively pivotally connected to said bogie frame means, and resilient means connected between said side members of the bogie frame means and said car to support the weight of the car and to limit said lateral and rotational displacement of the bogie with respect to the car, said crossbar and said force transmitting links being disposed generally in the horizontal plane of the rotatiOnal axes of said wheels.
Claim 2
Dependent Claim
209 words
In a system for transmitting forces between a railway car and a bogie which supports said car, the combination including a rigid bogie frame means including a pair of side members and including means to rotatably support at least two pairs of trackengaging wheels, a vertical pivot element fixedly attached to and projecting downwardly from the underside of the car and located along the longitudinal centerline thereof, a horizontal transverse crossbar pivotally joined to said vertical pivot element at the midpoint of the crossbar to constrain longitudinal displacement of the bogie with respect to the car while permitting lateral and rotational displacement, the extremities of said crossbar being respectively pivotally connected to one end of each of a pair of force transmitting links disposed generally horizontally in the direction of movement of the bogie, the other ends of said links being respectively pivotally connected to said bogie frame means, and resilient means connected between said side members of the bogie frame means and said car to support the weight of the car and to limit said lateral and rotational displacement of the bogie with respect to the car, said crossbar and said force transmitting links being disposed generally in the horizontal plane of the rotatiOnal axes of said wheels.
Claim 3
Dependent Claim
19 words
The invention according to claim 1, wherein said force transmitting links extend away from said crossbar in opposite directions.
Claim 4
Dependent Claim
29 words
The invention according to claim 1, wherein said pivotal connections between said links, said crossbar, and the frame of a railway car include bearing elements composed of elastomeric material.
Claim 5
Dependent Claim
65 words
The invention according to claim 1, wherein said railway car includes a transverse bolster means and said vertical pivot element comprises a pin secured to said bolster means, said pin being received in an opening of greater diameter than the pin provided in said crossbar, and an annular elastomeric bearing element disposed between, and bonded to, said pin and the inner surface of the opening.
Claim 6
Dependent Claim
14 words
The invention according to claim 4, wherein said pin is downwardly and inwardly tapered.
Claim 7
Dependent Claim
25 words
The invention according to claim 4, wherein each of the pivotal connections at the ends of said force transmitting links comprises an elastomeric bearing insert.
References Cited (Backward Citations)
US2034504A
Cited
US2096005A
Cited
US2515812A
Cited
US3150612A
Cited
US3150611A
Cited
US3557709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |