US4355687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ballast leveling apparatus and method
Assignee: Franz Plasser Bahnbaumaschinen Industrie GmbH
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Filing: 1980-10-30
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Granted: 1982-10-26
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Expires: 2000-10-30
Abstract
Abstract A ballast leveling apparatus mounted on a mobile ballast cleaning machine comprises a pair of endless ballast leveling chains, a vertical pivot in each ballast bed shoulder and supporting a respective chain for pivoting in a plane underneath the track, a rotary drive for driving each ballast leveling chain and a power drive linking each chain to the machine frame for vertically adjusting the chain. In the automatic ballast leveling method using this apparatus, ballast is removed from a surface layer of uneven ballast distribution to a predetermined, controlled depth and simultaneously conveyed to two paths from the center of the ballast bed towards the shoulders while filling any depressions in the ballast bed in the paths of the conveyed ballast with the conveyed ballast to level the ballast bed.
Inventors
- 👤 Josef Theurer
- 👤 Karl Folser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:17
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/02; E01B27/023; E01B27/026; E01B27/028; E01B27/06; E01B27/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
190 words
A ballast leveling apparatus mounted on a ballast cleaning machine including a frame and adapted to move in an operating direction on a track including ties resting on a ballast bed having two shoulders laterally adjacent the track, the machine frame supporting a ballast excavating means for removing ballast from a region of the ballast bed underneath the track, a ballast screening arrangement for separating the removed ballast into cleaned ballast and waste, and conveyor means for redistributing cleaned ballast to the excavated region of the ballast bed, and the ballast leveling apparatus being comprised of (a) a pair of endless ballast leveling chains for distributing the redistributed cleaned ballast over the ballast bed and for leveling the distributed cleaned ballast, (b) a vertical pivot supporting a respective one of the endless ballast leveling chains for pivoting inwardly from a respective one of the ballast bed shoulders in a plane underneath the track, (c) a rotary drive for driving each ballast leveling chain, and (d) a power drive linking each ballast leveling chain to the machine frame for vertically adjusting the ballast leveling chain independently of the ballast excavating means.
Claim 2
Dependent Claim
190 words
A ballast leveling apparatus mounted on a ballast cleaning machine including a frame and adapted to move in an operating direction on a track including ties resting on a ballast bed having two shoulders laterally adjacent the track, the machine frame supporting a ballast excavating means for removing ballast from a region of the ballast bed underneath the track, a ballast screening arrangement for separating the removed ballast into cleaned ballast and waste, and conveyor means for redistributing cleaned ballast to the excavated region of the ballast bed, and the ballast leveling apparatus being comprised of (a) a pair of endless ballast leveling chains for distributing the redistributed cleaned ballast over the ballast bed and for leveling the distributed cleaned ballast, (b) a vertical pivot supporting a respective one of the endless ballast leveling chains for pivoting inwardly from a respective one of the ballast bed shoulders in a plane underneath the track, (c) a rotary drive for driving each ballast leveling chain, and (d) a power drive linking each ballast leveling chain to the machine frame for vertically adjusting the ballast leveling chain independently of the ballast excavating means.
Claim 3
Dependent Claim
40 words
The ballast leveling apparatus of claim 1, further comprising a parallelogram guide mechanism mounting each ballast leveling chain on the machine frame for horizontal and vertical adjustment, the power drive being connected to the parallelogram guide mechanism for adjustment thereof.
Claim 4
Dependent Claim
24 words
The ballast leveling apparatus of claim 2, wherein the parallelogram mechanism comprises two parallel guide rods having one end pivoted to the machine frame.
Claim 5
Dependent Claim
83 words
The ballast leveling apparatus of claim 3, further comprising a pair of elongated carriers extending in the direction of the track, each carrier supporting a respective one of the ballast leveling chains, a guide housing for each chain, a pivoting arm fixedly secured to the guide housing of each chain, and a power drive for each chain having one end linked to each elongated carrier and another end linked to each pivoting arm for pivoting each ballast leveling chain about the vertical pivot.
Claim 6
Dependent Claim
46 words
The ballast leveling apparatus of claim 4, further comprising a ballast compacting device arranged rearwardly of the ballast leveling chains in the operating direction, the compacting device being comprised of a beam extending transversely to the track and having respective ends connected to the elongated carriers.
Claim 7
Dependent Claim
18 words
The ballast leveling apparatus of claim 5, wherein the beam ends are resiliently connected to the elongated carriers.
Claim 8
Dependent Claim
18 words
The ballast leveling apparatus of claim 5 or 6, further comprising a vibrator means for vibrating the beam.
Claim 9
Dependent Claim
46 words
The ballast leveling apparatus of claim 1, further comprising a guide housing for each endless ballast leveling chain, each guide housing having an end opposite a respective one of the vertical pivots, and detachable fishplates for rigidly interconnecting the chain guide housings at the ends thereof.
Claim 10
Dependent Claim
66 words
The ballast leveling apparatus of claim 1, wherein the ballast excavating means has a portion extending transversely of, and underneath, the track and the conveyor means has a discharge portion for depositing cleaned ballast in the excavated region of the ballast bed, the transversely extending excavating means portion and the conveyor means discharge portion being arranged forwardly of the ballast leveling chains in the operating direction.
Claim 11
Dependent Claim
24 words
The ballast leveling apparatus of claim 9, further comprising a ballast compacting device arranged rearwardly of the ballast leveling chains in the operating direction.
References Cited (Backward Citations)
GB1052450A
Cited
DE210458C
Cited
US2921636A
Cited
AT207876B
Cited
US3096829A
Cited
US3356157A
Cited
US3436848A
Cited
DE1759235A1
Cited
US4010691A
Cited
ATA207876A
Cited
US4133388A
Cited
US4267777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |