US3699894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movable apparatus for replacing an old track by a new track
Assignee: Franz Plasser Bahnbaumaschinen Industrie GmbH
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Filing: 1970-09-23
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Granted: 1972-10-24
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Expires: 1990-09-23
Abstract
Abstract A train assembly is moved continuously along a right of way during a track renewal or replacement operation, with a first train section of cars moving on the old track rails and a second train section of cars moving on the new track rails. In an intermediate trackless section, the old track is replaced by the new track, and an intermediate train section bridges the trackless section of the right of way. The intermediate train section is pivotally coupled to the first and second train sections, the latter being held at a predetermined distance. Track renewal means operable in a timed sequence during the continuous movement of the train assembly are mounted on the cars.
Inventors
- 👤 Franz Plasser
- 👤 Josef Theurer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:39
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/06; E01B27/11; E01B29/00; E01B29/05
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
219 words
An apparatus for the continuous replacement of an old track by a new track consisting of track parts including two rails and ties supporting the rails on ballast, comprising a train assembly continuously moving along a right of way during the replacement; the right of way consisting of a section of old track, a section of new track and a trackless intermediate section wherein the old track is replaced by the new track; the train assembly consisting of a first train section moving on the old track rails, an intermediate train section bridging the trackless intermediate section of the right of way, a second train section moving on the new track rails, and means linking the intermediate train section respectively to the first and second train sections to interconnect the same for common movement, the linking means being at a predetermined distance in the direction of the right of way; and means on the train assembly for transporting and supporting at least one of the track parts of the old and new tracks, for respectively receiving at least one of the track parts of the old track and laying at least one of the track parts of the new track, and for guiding without substantial friction the track rails briding the intermediate trackless section of the right of way.
Claim 2
Independent Claim
219 words
An apparatus for the continuous replacement of an old track by a new track consisting of track parts including two rails and ties supporting the rails on ballast, comprising a train assembly continuously moving along a right of way during the replacement; the right of way consisting of a section of old track, a section of new track and a trackless intermediate section wherein the old track is replaced by the new track; the train assembly consisting of a first train section moving on the old track rails, an intermediate train section bridging the trackless intermediate section of the right of way, a second train section moving on the new track rails, and means linking the intermediate train section respectively to the first and second train sections to interconnect the same for common movement, the linking means being at a predetermined distance in the direction of the right of way; and means on the train assembly for transporting and supporting at least one of the track parts of the old and new tracks, for respectively receiving at least one of the track parts of the old track and laying at least one of the track parts of the new track, and for guiding without substantial friction the track rails briding the intermediate trackless section of the right of way.
Claim 3
Dependent Claim
23 words
The apparatus of claim 1, wherein said last-mentioned means are arranged for supporting and transporting, receiving and laying the rails and the ties.
Claim 4
Dependent Claim
25 words
The apparatus of claim 1, wherein the linking means comprises pivotal couplings between the intermediate train section and the first and second train sections, respectively.
Claim 5
Dependent Claim
32 words
The apparatus of claim 1, wherein the intermediate train section includes vehicles selectively operable to move on the track and to move on the trackless intermediate section of the right of way.
Claim 6
Dependent Claim
13 words
The apparatus of claim 4, wherein the intermediate train section includes full-track vehicles.
Claim 7
Dependent Claim
16 words
The apparatus of claim 1, wherein the intermediate train section means comprises a ballast conditioning apparatus.
Claim 8
Dependent Claim
22 words
The apparatus of claim 1, wherein The intermediate train section includes means for maintaining the respective linking means at said predetermined distance.
Claim 9
Dependent Claim
24 words
The apparatus of claim 7, wherein the means for maintaining the respective linking means at a predetermined distance is adjustable for selecting said distance.
Claim 10
Dependent Claim
58 words
The apparatus of claim 8, wherein the adjustable distancing means is arranged to select a maximum distance limited by the permissible deformation of the new track rails being lowered from a respective one of said cars to the intermediate trackless section of the right of way or of the old track rails being raised in the latter section.
Claim 11
Dependent Claim
60 words
The apparatus of claim 7, wherein the intermediate train section means includes a pair of frame parts respectively linked to the first and second train sections and a connecting frame part linked to the pair of frame parts and extending therebetween, and the means for respectively receiving and laying the track parts being mounted on the pair of frame parts.
Claim 12
Dependent Claim
45 words
The apparatus of claim 10, wherein each frame part of the pair comprises a running gear vertically movably mounted in the frame for selective operative engagement with the track, and the connecting frame part comprises full tracks for operative engagement with the trackless intermediate section.
Claim 13
Dependent Claim
36 words
The apparatus of claim 11, wherein each frame part of the pair has a pivotal support arm having an end extending towards a respective one of the first and second train sections and being supported thereon.
Claim 14
Dependent Claim
39 words
The apparatus of claim 12, wherein each of the first and second train sections has a running gear moving on the respective tracks, the supported arm ends being in vertical alignment with the running gears of the train sections.
Claim 15
Dependent Claim
38 words
The apparatus of claim 11, wherein each frame part of the pair has an end portion respectively supported on the ends of the connecting frame part in substantially vertical alignment with respective ones of the full tracks thereof.
Claim 16
Dependent Claim
23 words
The apparatus of claim 14, wherein the end portions of the frame parts are vertically adjustably supported on the connecting frame part ends.
Claim 17
Dependent Claim
104 words
The apparatus of claim 7, wherein the intermediate train section means includes a pair of frame parts respectively linked to the first and second train sections and a connecting frame part linked to the pair of frame parts and extending therebetween, a pair of running gears being vertically movably mounted in the connecting frame part for selective operative engagement with the track, and a pair of full tracks being mounted on the connecting frame part for selective operative engagement with the trackless intermediate section, the running gears being arranged between the full tracks on the connecting frame part in the direction of track elongation.
Claim 18
Dependent Claim
38 words
The apparatus of claim 16, wherein each frame part of the pair has an end portion pivotally coupled to be connecting frame part at a point in substantially vertical alignment with a respective one of the full tracks.
Claim 19
Dependent Claim
86 words
The apparatus of claim 7, wherein the intermediate train section means includes a pair of frame parts respectively linked to the first and second train sections and a connecting frame part linked to the pair of frame parts and extending therebetween, a running gear and a full track being mounted in each of the frame parts of the pair, each running gear being vertically movable for selective operative engagement with the track and the full tracks being mounted for operative engagement with the trackless intermediate section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |