Patent US5329975A successfully refreshed from Google Patents.
Patent US3799062A successfully refreshed from Google Patents.
US3799062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway vehicle with a guide switching apparatus
Assignee: Airbus Defence and Space GmbH
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Filing: 1972-12-04
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Granted: 1974-03-26
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Expires: 1992-12-04
Abstract
Abstract A railway switch system in which rimless guiding wheels of a railway truck are held in one of two limit positions by a toggle mechanism is disclosed herein.
Inventors
- 👤 H Stocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:10
CPC Classifications
B; B61; B61B; B61B13/00; B61B13/12; B61B13/127; E; E01; E01B; E01B25/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
A railway vehicle having rimless wheels, the direction of which vehicle is determined by contact with one of two stationary guide rails having outer guide flanges optionally provided for either the right or the left side of the vehicle, said vehicle including at least one supporting device mounting a pair of guide wheels adjustable between two limit positions, in each of said limit positions one of said guide wheels contacts one of the guide rails, means for mounting said supporting device for pivotal movement about a vertical axis, adjusting means comprising a plurality of levers operating in the nature of a toggle switch for pivoting said supporting deivce; at least one of said plurality of levers being displaceable relative to an adjacent one of said plurality of levers; biasing means maintaining said adjusting means in one of said two limit positions; said adjusting means being movable to said limit positions by means carried by said vehicle or by means of steering rails disposed opposite to said guide rails.
Claim 2
Dependent Claim
168 words
A railway vehicle having rimless wheels, the direction of which vehicle is determined by contact with one of two stationary guide rails having outer guide flanges optionally provided for either the right or the left side of the vehicle, said vehicle including at least one supporting device mounting a pair of guide wheels adjustable between two limit positions, in each of said limit positions one of said guide wheels contacts one of the guide rails, means for mounting said supporting device for pivotal movement about a vertical axis, adjusting means comprising a plurality of levers operating in the nature of a toggle switch for pivoting said supporting deivce; at least one of said plurality of levers being displaceable relative to an adjacent one of said plurality of levers; biasing means maintaining said adjusting means in one of said two limit positions; said adjusting means being movable to said limit positions by means carried by said vehicle or by means of steering rails disposed opposite to said guide rails.
Claim 3
Dependent Claim
62 words
A railway vehicle according to claim 1, characterized by the fact that the adjusting means comprises a two-armed set lever pivoting about the axis of the supporting device between said two limit positions and a single-armed toggle lever connected with one of the ends of the set lever; said connection accommodating pivotal as well as axially displaceable movement against said biasing means.
Claim 4
Dependent Claim
84 words
A railway vehicle according to claim 1, including said guide rails and steering rails disposed in a forked switch characterized by the fact that the steering rails include a contact surface and inner guide flange arranged at the ends of the railway switch opposite each guide rail in a manner whereby contact of one of said guide wheels of the supporting device is brought into the limit position where its second guide wheel rests on the outer guide flange of the respective guide rail.
Claim 5
Dependent Claim
44 words
A railway vehicle according to claim 2, characterized by the fact that the connection between said toggle lever and said supporting device is made by a stop bolt pivoted in said supporting device, said stop bolt determining the limit positions of said supporting device.
Claim 6
Dependent Claim
41 words
A railway vehicle according to claim 4, characterized by the fact that said biasing means is a pressure spring supported on one side by said stop bolt and on the other side by a guide bolt carried by the set lever.
Claim 7
Dependent Claim
25 words
A railway vehicle according to claim 5, characterized by the fact that at least one end of the set lever determines both its limit positions.
References Cited (Backward Citations)
DE176222C
Cited
FR621342A
Cited
US3113529A
Cited
US3430580A
Cited
US3628462A
Cited
US3659529A
Cited
US3680488A
Cited
US3712239A
Cited
US3712238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |