Patent US3792533A successfully refreshed from Google Patents.
US3792533A
Expired / Lapsed
US
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Apparatus for measuring and recording a distance travelled by a vehicle
Assignee: Franz Plasser Bahnbaumaschinen Industrie GmbH
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Filing: 1972-09-28
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Granted: 1974-02-19
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Expires: 1992-09-28
Abstract
Abstract An apparatus for measuring and recording a distance traveled by a track survey car comprises a rotary odometer, a moving recording band, and a drive for moving the band and/or a device for applying marks to the band which indicate the traveled distance. A pulse generator is mechanically connected with the odometer and sends a set number of pulses per rotation of the odometer to one input of a digital-analog converter. A pulse transmitter at a fixed distance from the odometer axle and above the rolling surface thereof is connected to the other converter input. A comparator is connected to the converter output and is adjustable to a signal value corresponding to a predetermined distance traveled by the vehicle. The output of the comparator is connected to the drive or to the marking device.
Inventors
- 👤 F Plasser
- 👤 J Theurer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:22
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/12
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
240 words
An apparatus for measuring and recording a distance traveled by a track survey car advancing along a track, comprising 1. a rotary odometer associated with the car for travel therewith, the odometer having a rolling surface and an axle about which it is mounted to rotate, a. rotation of the odometer measuring traveled distances, 2. a recording instrument with a movable record sheet whereon track survey values may be continuously recorded as the sheet is moved, 3. an electrical control circuit including a. a pulse generator mechanically connected with the rotary odometer and arranged to emit a set number of pulses per rotation of the odometer, b. a digital-analog converter having two inputs and an output, one of the converter inputs receiving the pulses emitted by the generator, c. sensing-transmitter means arranged at a fixed distance from the odometer axle and spaced from the rolling surface of the odometer, the sensing transmitter means being operative to sense the diameter of the rolling surface and being connected to the other converter input, and d. a comparator connected to the output of the converter, the comparator providing an output corresponding to a predetermined distance traveled by the car, and 4. means associated with the movable record sheet and responsive to the output of the comparator for establishing lengths of the record sheet in the direction of the movement thereof which are proportional to corresponding distances traveled by the car along the track.
Claim 2
Independent Claim
240 words
An apparatus for measuring and recording a distance traveled by a track survey car advancing along a track, comprising 1. a rotary odometer associated with the car for travel therewith, the odometer having a rolling surface and an axle about which it is mounted to rotate, a. rotation of the odometer measuring traveled distances, 2. a recording instrument with a movable record sheet whereon track survey values may be continuously recorded as the sheet is moved, 3. an electrical control circuit including a. a pulse generator mechanically connected with the rotary odometer and arranged to emit a set number of pulses per rotation of the odometer, b. a digital-analog converter having two inputs and an output, one of the converter inputs receiving the pulses emitted by the generator, c. sensing-transmitter means arranged at a fixed distance from the odometer axle and spaced from the rolling surface of the odometer, the sensing transmitter means being operative to sense the diameter of the rolling surface and being connected to the other converter input, and d. a comparator connected to the output of the converter, the comparator providing an output corresponding to a predetermined distance traveled by the car, and 4. means associated with the movable record sheet and responsive to the output of the comparator for establishing lengths of the record sheet in the direction of the movement thereof which are proportional to corresponding distances traveled by the car along the track.
Claim 3
Dependent Claim
21 words
a recording instrument with a movable record sheet whereon track survey values may be continuously recorded as the sheet is moved,
Claim 4
Dependent Claim
21 words
a recording instrument with a movable record sheet whereon track survey values may be continuously recorded as the sheet is moved,
Claim 5
Dependent Claim
22 words
The apparatus of claim 1, wherein the means associated with the movable record sheet includes a drive for moving the record sheet.
Claim 6
Dependent Claim
29 words
The apparatus of claim 1, wherein the means associated with the movable record sheet includes a device for applying marks to the record sheet which indicates the traveled distance.
Claim 7
Dependent Claim
120 words
an electrical control circuit including a. a pulse generator mechanically connected with the rotary odometer and arranged to emit a set number of pulses per rotation of the odometer, b. a digital-analog converter having two inputs and an output, one of the converter inputs receiving the pulses emitted by the generator, c. sensing-transmitter means arranged at a fixed distance from the odometer axle and spaced from the rolling surface of the odometer, the sensing transmitter means being operative to sense the diameter of the rolling surface and being connected to the other converter input, and d. a comparator connected to the output of the converter, the comparator providing an output corresponding to a predetermined distance traveled by the car, and
Claim 8
Dependent Claim
120 words
an electrical control circuit including a. a pulse generator mechanically connected with the rotary odometer and arranged to emit a set number of pulses per rotation of the odometer, b. a digital-analog converter having two inputs and an output, one of the converter inputs receiving the pulses emitted by the generator, c. sensing-transmitter means arranged at a fixed distance from the odometer axle and spaced from the rolling surface of the odometer, the sensing transmitter means being operative to sense the diameter of the rolling surface and being connected to the other converter input, and d. a comparator connected to the output of the converter, the comparator providing an output corresponding to a predetermined distance traveled by the car, and
Claim 9
Dependent Claim
42 words
means associated with the movable record sheet and responsive to the output of the comparator for establishing lengths of the record sheet in the direction of the movement thereof which are proportional to corresponding distances traveled by the car along the track.
Claim 10
Dependent Claim
42 words
means associated with the movable record sheet and responsive to the output of the comparator for establishing lengths of the record sheet in the direction of the movement thereof which are proportional to corresponding distances traveled by the car along the track.
Claim 11
Dependent Claim
40 words
The apparatus of claim 1, further comprising an automatically adjustable pulse counter connected between the pulse generator and the converter, the one converter input receiving the emitted pulses through the counter, and the comparator output being connected to the counter.
Claim 12
Dependent Claim
26 words
The apparatus of claim 1, further comprising an amplifier having an amplification factor pi connected between the sensing-transmitter means and the other input of the converter.
Claim 13
Dependent Claim
40 words
The apparatus of claim 5, wherein the amplifier has two inputs, one of the inputs being connected to the sensing-transmitter means, and the amplifier being adjustable through the other input thereof in response to the output signals of the comparator.
Claim 14
Dependent Claim
58 words
The apparatus of claim 1, wherein the means associated with the movable record sheet includes a stepping motor for moving the record sheet, the stepping motor being connected to the pulse generator, and a device for applying marks to the record sheet which indicate the traveled distance, the said device being connected to the output of the comparator.
Claim 15
Dependent Claim
57 words
The apparatus of claim 7, further comprising an automatically adjustable pulse counter connected between the pulse generator and the converter, the one converter input receiving the emitted pulses through the counter, the comparator output being connected to the counter, and the counter being connected to said device, a filter being connected between the counter and the device.
Claim 16
Dependent Claim
34 words
The apparatus of claim 1, wherein the means associated with the movable record sheet includes a stepping motor for moving the recoRd sheet, the stepping motor being connected to the output of the comparator.
Claim 17
Dependent Claim
17 words
The apparatus of claim 1, further comprising a flexible axle connecting the pulse generator to the odometer.
Claim 18
Dependent Claim
57 words
The apparatus of claim 1, further comprising at least one instrument for indicating a track condition and for emitting a signal constituting a track survey value, a signal transmitter receiving said signal, means for evaluating the signal and connected to the transmitter, and the evaluating means being connected to the means associated with the movable record sheet.
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |