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US4064807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile apparatus for non-stop track leveling and ballast tamping
Assignee: Franz Plasser Bahnbaumaschinen Industrie GmbH
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Filing: 1976-05-26
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Granted: 1977-12-27
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Expires: 1996-05-26
Abstract
Abstract In a non-stop track leveling and ballast tamping apparatus wherein a machine frame is continuously advanced along a track as successive track sections are lifted for leveling under the control of a reference system, a plow is arranged to move ballast onto the ballast bed below the lifted track sections so that there are formed two elongated raised ballast strips below the track rails and an intermediate strip recessed between the two raised strips. A ballast compactor comprises a chassis supporting a vibrator generating at least approximately horizontal vibrations and a hydraulic load. The chassis has rail engaging and guiding rollers associated with each rail and mounting the chassis for mobility on the track and pressure fluid operated cylinders for continuously laterally pressing the rollers without play against the rail with which it is associated.
Inventors
- 👤 Josef Theurer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:58
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/12; E01B27/13
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
316 words
In a mobile apparatus for continuously leveling a track and compacting ballast of a ballast bed supporting the track consisting of two rails fastened to ties resting on the ballast, which comprises a frame mounted on the track for continuous advancement therealong during the leveling and ballast compaction, a reference system controlling the track leveling, a roller unit mounted on the frame for lifting a section of the track, plow means mounted on the frame for moving ballast onto the ballast bed below the lifted track section and for leveling the said ballast, and a ballast compacting means mounted rearwardly of the plow means in the direction of advancement, the ballast compacting means comprising means for imparting vibrations to the track and hydraulic load means associated therewith for simultaneously exerting pressure to both rails of the track section in the direction of the leveled ballast bed whereupon the track section rests, the combination of 1. the plow means comprising plow elements for moving the ballast so that there are formed two elongated raised ballast strips below the track rails for support of the ties in the region of the rails and an elongated intermediate strips between the two raised ballast strips, the intermediate strip being recessed, and 2. the ballast compacting means comprising a chassis supporting a means for generating at least approximately horizontal vibrations and the hydraulic load means, the chassis having a. rail engaging and guiding means associated with each of the rails and mounting the chassis for mobility on the track, the vibration generating and load means being associated with the rail engaging and guiding means for simultaneously laterally vibrating and vertically loading each of the rail engaging and guiding means, and b. pressure fluid operated means for continuously laterally pressing the rail engaging and guiding means without play with respect to the chassis and against the rail with which it is associated.
Claim 2
Dependent Claim
316 words
In a mobile apparatus for continuously leveling a track and compacting ballast of a ballast bed supporting the track consisting of two rails fastened to ties resting on the ballast, which comprises a frame mounted on the track for continuous advancement therealong during the leveling and ballast compaction, a reference system controlling the track leveling, a roller unit mounted on the frame for lifting a section of the track, plow means mounted on the frame for moving ballast onto the ballast bed below the lifted track section and for leveling the said ballast, and a ballast compacting means mounted rearwardly of the plow means in the direction of advancement, the ballast compacting means comprising means for imparting vibrations to the track and hydraulic load means associated therewith for simultaneously exerting pressure to both rails of the track section in the direction of the leveled ballast bed whereupon the track section rests, the combination of 1. the plow means comprising plow elements for moving the ballast so that there are formed two elongated raised ballast strips below the track rails for support of the ties in the region of the rails and an elongated intermediate strips between the two raised ballast strips, the intermediate strip being recessed, and 2. the ballast compacting means comprising a chassis supporting a means for generating at least approximately horizontal vibrations and the hydraulic load means, the chassis having a. rail engaging and guiding means associated with each of the rails and mounting the chassis for mobility on the track, the vibration generating and load means being associated with the rail engaging and guiding means for simultaneously laterally vibrating and vertically loading each of the rail engaging and guiding means, and b. pressure fluid operated means for continuously laterally pressing the rail engaging and guiding means without play with respect to the chassis and against the rail with which it is associated.
Claim 3
Dependent Claim
73 words
In the mobile apparatus of claim 1, the plow elements comprising a substantially V-shaped intermediate ballast plow mounted intermediate the track rails to excavate the intermediate strip during the advancement of the frame and simultaneously to move the excavated ballast towards the respective rails, and a plowshare extending substantially transversely of the track from the intermediate ballast plow towards the rails for leveling the moved ballast and form the two raised ballast strips.
Claim 4
Dependent Claim
68 words
In the mobile apparatus of claim 1, the plow elements comprising a pair of plowshares mounted for moving ballast from a region of the ballast bed beyond the ends of the ties inwardly towards the rails, and a pair of additional plowshares extending substantially transversely of the track inwardly from the pair of ballast moving plowshares for leveling the moved ballast and form the two raised ballast strips.
Claim 5
Dependent Claim
117 words
In the mobile apparatus of claim 1, the plow elements comprising a substantially V-shaped intermediate ballast plow mounted intermediate the track rails to excavate the intermediate strip during the advancement of the frame and simultaneously to move the excavated ballast towards the respective rails, a pair of plowshares mounted for moving ballast from a region of the ballast bed beyond the ends of the ties inwardly towards the rails, and an additional plowshare extending substantially transversely of the track between the intermediate ballast plow and each of the ballast moving plowshares, the additional plowshares being connected to the plow and the ballast moving plowshares for leveling the moved ballast and to form the two raised ballast strips.
Claim 6
Dependent Claim
15 words
In the mobile apparatus of claim 1, means for imparting vibrations to the plow means.
Claim 7
Dependent Claim
23 words
In the mobile apparatus of claim 1, a drive for adjusting the magnitude of the horizontal vibrations associated with the vibration generating means.
Claim 8
Dependent Claim
26 words
In the mobile apparatus of claim 6, a sensor determining the density of the ballast compaction and a control responsive to the sensor for the drive.
Claim 9
Dependent Claim
19 words
In the mobile apparatus of claim 1, hydraulic drives associated with the plow means and the ballast compacting means.
Claim 10
Dependent Claim
51 words
In the mobile apparatus of claim 1, means for vertically adjusting the plow means, sensing means cooperating with the reference system for emitting a control signal, and the control signal operating the vertical plow adjusting means whereby the grade of the ballast strips is controlled in response to the reference system.
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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) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |