GB1322785A - System for detecting the condition of railway track - Google Patents

System for detecting the condition of railway track

Info

Publication number
GB1322785A
GB1322785A GB4231470A GB4231470A GB1322785A GB 1322785 A GB1322785 A GB 1322785A GB 4231470 A GB4231470 A GB 4231470A GB 4231470 A GB4231470 A GB 4231470A GB 1322785 A GB1322785 A GB 1322785A
Authority
GB
United Kingdom
Prior art keywords
photo
ratio
cell
canron
sept
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4231470A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ivacan Inc
Original Assignee
Ivacan Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ivacan Inc filed Critical Ivacan Inc
Publication of GB1322785A publication Critical patent/GB1322785A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/004—Devices for guiding or controlling the machines along a predetermined path
    • E01C19/006—Devices for guiding or controlling the machines along a predetermined path by laser or ultrasound
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/16—Guiding or measuring means, e.g. for alignment, canting, stepwise propagation

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1322785 Photo-electric road or track level monitoring CANRON Ltd-CANRON LIMITEE 3 Sept 1970 [5 Sept 1969] 42314/70 Heading B7N [Also in Division G1] In a shadow board system the light beam receiver comprises two photo-cells spaced apart in the direction of motion of the operative edge and their outputs are applied to differential circuitry whereby a control pulse is developed when the cell outputs are in a predetermined ratio. A ratio of 2 : 1 is preferred but a ratio range of 8 : 1 to 8 : 7 is exemplified. The system may include a separate receiver positioned normally to be in the shadow of the board and arranged to suppress control by the control pulse until the light incident on it establishes a predetermined ratio with the adjacent photo-cell i.e. until the edge deviation exceeds a predetermined amount. The system may include an arrangement whereby the ratio may be varied and/or the beam may be modulated, and a further photo-cell may be placed about the other three to sound an alarm when incident light is shut-off by for example a person.
GB4231470A 1969-09-05 1970-09-03 System for detecting the condition of railway track Expired GB1322785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85559169A 1969-09-05 1969-09-05

Publications (1)

Publication Number Publication Date
GB1322785A true GB1322785A (en) 1973-07-11

Family

ID=25321637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4231470A Expired GB1322785A (en) 1969-09-05 1970-09-03 System for detecting the condition of railway track

Country Status (11)

Country Link
US (1) US3675233A (en)
JP (1) JPS511138B1 (en)
AT (1) AT317964B (en)
CA (1) CA950989A (en)
CH (1) CH519056A (en)
CS (1) CS189568B2 (en)
DE (1) DE2043580C3 (en)
ES (1) ES383383A1 (en)
FR (1) FR2060993A5 (en)
GB (1) GB1322785A (en)
ZA (1) ZA705907B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775618A (en) * 1972-08-09 1973-11-27 Cannon Inc Method and apparatus for checking and/or correcting railway tracks
CH609149A5 (en) * 1975-10-23 1979-02-15 Heidenhain Gmbh Dr Johannes
CH643619A5 (en) * 1981-09-25 1984-06-15 Sig Schweiz Industrieges RAILWAY SITE MACHINE.
CH643618A5 (en) * 1981-09-25 1984-06-15 Sig Schweiz Industrieges RAILWAY SITE MACHINE.
JPS5794812U (en) * 1981-10-29 1982-06-11
US5930904A (en) * 1997-06-17 1999-08-03 Mualem; Charles Catenary system measurement apparatus and method
US20060032063A1 (en) * 2004-08-16 2006-02-16 Fabrication Technology Associates, Inc., Also Known As Fab Tech Method and system for controlling railroad surfacing
EP3024711B1 (en) 2013-07-24 2024-03-13 Hitachi Rail Sts Usa, Inc. System and method for early detection of a point failure of a railway switch machine
CA2892885C (en) 2015-02-20 2020-07-28 Tetra Tech, Inc. 3d track assessment system and method
US10407835B2 (en) * 2015-07-24 2019-09-10 Focus Point Solutions Projector for track alignment reference systems
US11377130B2 (en) 2018-06-01 2022-07-05 Tetra Tech, Inc. Autonomous track assessment system
US10807623B2 (en) 2018-06-01 2020-10-20 Tetra Tech, Inc. Apparatus and method for gathering data from sensors oriented at an oblique angle relative to a railway track

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA737154A (en) * 1966-06-28 Canada Iron Foundries Limited Means for continually and simultaneously surveying and aligning railroad track
US3218623A (en) * 1961-04-19 1965-11-16 Gen Precision Inc 3 plate proximity scorer
US3144834A (en) * 1961-06-30 1964-08-18 Stewart John Kenneth Means for determining roadbed level and super elevation
US3129335A (en) * 1961-06-30 1964-04-14 Stewart John Kenneth Photosensitive railroad surveying system
US3207904A (en) * 1962-04-09 1965-09-21 Western Electric Co Electro-optical article positioning system
US3270690A (en) * 1962-06-04 1966-09-06 Jackson Vibrators Railway track grading apparatus
CH467386A (en) * 1962-10-15 1969-01-15 Canron Ltd Device that can be moved on a track to align the track being traveled on
US3381626A (en) * 1966-03-25 1968-05-07 Jackson Vibrators Track working assembly and control system
US3444384A (en) * 1966-11-07 1969-05-13 Geza E Horeczky Motion selector using ratio of responses of two photoelectric cells
US3521066A (en) * 1969-02-13 1970-07-21 Fairmont Railway Motors Inc Railroad track alignment indicating system employing modulated infrared techniques

Also Published As

Publication number Publication date
AT317964B (en) 1974-09-25
CS189568B2 (en) 1979-04-30
DE2043580C3 (en) 1981-12-10
JPS511138B1 (en) 1976-01-14
FR2060993A5 (en) 1971-06-18
DE2043580A1 (en) 1971-04-01
CA950989A (en) 1974-07-09
DE2043580B2 (en) 1981-03-26
CH519056A (en) 1972-02-15
ES383383A1 (en) 1973-01-16
ZA705907B (en) 1971-04-28
US3675233A (en) 1972-07-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee