US3604360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chord liner
Assignee: TAMPER Inc
•
Filing: 1969-09-04
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Granted: 1971-09-14
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Expires: 1989-09-04
Abstract
Abstract Apparatus for aligning railroad track providing automatic alignment to a visual representation appearing on a recording medium. Generally the invention provides apparatus comprising means mounting said apparatus for movement along a length of track, means for mounting a recording medium carrying a representation of the desired alignment condition of the length of track, means for following saId representation, and means responsive to said following means for moving the track at a point in saId length to correct misaLignment of the track.
Inventors
- 👤 John Kenneth Stewart
- 👤 William J Tyler
- 👤 Helmuth Rolf Erich Vo Beckmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:16
CPC Classifications
E; E01; E01B; E01B35/00; E01B2203/00; E01B2203/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
102 words
Apparatus for aligning railroad track comprising means mounting said apparatus for movement along a length of track, a chart recorder, a chart on the recorder carrying a representation of the desired alignment condition of the length of track, a photocell for following said representation on relative movement of photocell and chart, an electric motor for controlling said photocell, the electric power supply to the motor being the difference of electrical output from the photocell and a standard comparator voltage, and means responsive to said photocell movement for moving the track at a point in said length to correct misalignment of the track.
Claim 2
Dependent Claim
102 words
Apparatus for aligning railroad track comprising means mounting said apparatus for movement along a length of track, a chart recorder, a chart on the recorder carrying a representation of the desired alignment condition of the length of track, a photocell for following said representation on relative movement of photocell and chart, an electric motor for controlling said photocell, the electric power supply to the motor being the difference of electrical output from the photocell and a standard comparator voltage, and means responsive to said photocell movement for moving the track at a point in said length to correct misalignment of the track.
Claim 3
Dependent Claim
150 words
Apparatus for aligning railroad track comprising a track alignment correcting vehicle mounting said apparatus for movement along a length of track, means on said vehicle for mounting a recording medium carrying a representation of the desired alignment condition of the length of track; means for following said representation, means operatively connected to the following means for converting movement of the following means into an electrical signal representative of the movement of the movement of the following means; reference line establishing means including a radiation transmitter and a radiation receiver; shadow means between said receiver and transmitter; means for moving said shadow means in response to said signal; track moving means on said vehicle and operatively connected to the shadow means; and means to automatically operate the track moving means to move the track and shadow means thereon to place said shadow means in an interference position on the reference line.
Claim 4
Dependent Claim
150 words
Apparatus for aligning railroad track comprising a track alignment correcting vehicle mounting said apparatus for movement along a length of track, means on said vehicle for mounting a recording medium carrying a representation of the desired alignment condition of the length of track; means for following said representation, means operatively connected to the following means for converting movement of the following means into an electrical signal representative of the movement of the movement of the following means; reference line establishing means including a radiation transmitter and a radiation receiver; shadow means between said receiver and transmitter; means for moving said shadow means in response to said signal; track moving means on said vehicle and operatively connected to the shadow means; and means to automatically operate the track moving means to move the track and shadow means thereon to place said shadow means in an interference position on the reference line.
Claim 5
Dependent Claim
31 words
Apparatus according to claim 2 wherein said moving means comprises an electric motor supplied with operating current proportional to said signal and a signal derived from the position of the shadowboard.
References Cited (Backward Citations)
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |