US3821933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lining track in a track curve
Assignee: Franz Plasser Bahnbaumaschinen Industrie GmbH
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Filing: 1972-12-11
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Granted: 1974-07-02
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Expires: 1992-12-11
Abstract
Abstract A mobile track liner comprises a laser beam gun in an uncorrected track section emitting a reference beam forming a chord in the arc of a track curve, and a laser beam receiver mounted on the liner, laser beam gun and receiver are transversely adjustable in relation to fixed points, such as telegraph poles and like markers defining a planned track position and respectively associated with the laser beam gun and the receiver. A control means for the track lining converts lining error signals which are a function of the receiver position in dependence of the length of the path of the movement of the receiver on the track into lining control signals. In the lining method, the receiver on the liner is moved towards the laser beam gun which is mounted on a carriage in the uncorrected track section.
Inventors
- 👤 F Plasser
- 👤 J Theurer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:47
CPC Classifications
E; E01; E01B; E01B35/00; E01B33/00; E01B33/02; E01B2203/00; E01B2203/16
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
152 words
A mobile track liner for lining a track in a track curve in respect of a reference beam forming a chord in the arc of the track curve, comprising 1. track lining means mounted on the liner 2. a laser beam gun emitting the reference beam, 3. a carriage mounted for mobility in an uncorrected section of the track and carrying the laser gun, 4. a laser beam receiver mounted on the liner, 5. means for adjustably positioning the laser gun and receiver transversely of the track in relation to fixed points defining a planned track position and respectively associated with the laser beam gun and receiver, and 6. control means for controlling the track lining, a. the control means converting lining error signals which are a function of the receiver position in dependence on the length of the path of the movement of the receiver on the track lining control signals.
Claim 2
Dependent Claim
152 words
A mobile track liner for lining a track in a track curve in respect of a reference beam forming a chord in the arc of the track curve, comprising 1. track lining means mounted on the liner 2. a laser beam gun emitting the reference beam, 3. a carriage mounted for mobility in an uncorrected section of the track and carrying the laser gun, 4. a laser beam receiver mounted on the liner, 5. means for adjustably positioning the laser gun and receiver transversely of the track in relation to fixed points defining a planned track position and respectively associated with the laser beam gun and receiver, and 6. control means for controlling the track lining, a. the control means converting lining error signals which are a function of the receiver position in dependence on the length of the path of the movement of the receiver on the track lining control signals.
Claim 3
Dependent Claim
8 words
a laser beam gun emitting the reference beam,
Claim 4
Dependent Claim
8 words
a laser beam gun emitting the reference beam,
Claim 5
Dependent Claim
20 words
The mobile track liner of claim 1, wherein the lining control signals control the operation of the track lining means.
Claim 6
Dependent Claim
46 words
The mobile track liner of claim 2, wherein the control means comprises control signal storage apparatus including a storage element storing the planned ordinates of the track curve and a comparator comparing the planned ordinates with the actual ordinates indicated by the position of the receiver.
Claim 7
Dependent Claim
17 words
a carriage mounted for mobility in an uncorrected section of the track and carrying the laser gun,
Claim 8
Dependent Claim
17 words
a carriage mounted for mobility in an uncorrected section of the track and carrying the laser gun,
Claim 9
Dependent Claim
8 words
a laser beam receiver mounted on the liner,
Claim 10
Dependent Claim
8 words
a laser beam receiver mounted on the liner,
Claim 11
Dependent Claim
33 words
The mobile track liner of claim 1, comprising a further reference system controlling the operation of the track lining means, and the lining control signals control an end point of the reference system.
Claim 12
Dependent Claim
36 words
The mobile track liner of claim 1, wherein the laser gun is mounted for pivoting movement about a vertical axis, and power means is associated with the laser gun for pivoting the gun about the axix.
Claim 13
Dependent Claim
34 words
means for adjustably positioning the laser gun and receiver transversely of the track in relation to fixed points defining a planned track position and respectively associated with the laser beam gun and receiver, and
Claim 14
Dependent Claim
34 words
means for adjustably positioning the laser gun and receiver transversely of the track in relation to fixed points defining a planned track position and respectively associated with the laser beam gun and receiver, and
Claim 15
Dependent Claim
43 words
control means for controlling the track lining, a. the control means converting lining error signals which are a function of the receiver position in dependence on the length of the path of the movement of the receiver on the track lining control signals.
Claim 16
Dependent Claim
43 words
control means for controlling the track lining, a. the control means converting lining error signals which are a function of the receiver position in dependence on the length of the path of the movement of the receiver on the track lining control signals.
Claim 17
Dependent Claim
32 words
The mobile track liner of claim 1, further comprising remote control means for transversely adjusting the position of the laser gun beam and of the receiver in dependence on the actual ordinate.
Claim 18
Dependent Claim
26 words
The mobile track liner of claim 1, wherein the receiver is mounted on carriage moving with the liner in the region of the track lining means.
Claim 19
Dependent Claim
60 words
The mobile track liner of claim 1, wherein the liner comprises a carriage mobile on the track and fixedly connected to the forward end of the liner, the receiver being mounted on the carriage, and comprising a further reference system for controlling the operation of the track lining means, the carriage constituting a forward end point of the reference system.
Claim 20
Dependent Claim
37 words
The mobile track liner of claim 1, further comprising means for selectively holding the laser beam gun and the receiver at a fixed distance from one of the rails of the track selected as the grade rail.
Claim 21
Dependent Claim
36 words
The mobile track liner of claim 1, wherein at least one of the end points of the reference beam constituted respectively by the laser gun and the receiver is positioned intermediate the rails of the track.
References Cited (Backward Citations)
US3381626A
Cited
US3591926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |