CA925285A - Apparatus for detecting surface variations - Google Patents

Apparatus for detecting surface variations

Info

Publication number
CA925285A
CA925285A CA925285A CA925285DA CA925285A CA 925285 A CA925285 A CA 925285A CA 925285 A CA925285 A CA 925285A CA 925285D A CA925285D A CA 925285DA CA 925285 A CA925285 A CA 925285A
Authority
CA
Canada
Prior art keywords
detecting surface
surface variations
variations
detecting
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
CA925285A
Inventor
J. Ouellette Roland
B. Coveney Donald
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.)
International Paper Canada Inc
Original Assignee
International Paper Canada 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 International Paper Canada Inc filed Critical International Paper Canada Inc
Application granted granted Critical
Publication of CA925285A publication Critical patent/CA925285A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CA925285A 1972-07-24 1972-07-24 Apparatus for detecting surface variations Expired CA925285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA147762 1972-07-24

Publications (1)

Publication Number Publication Date
CA925285A true CA925285A (en) 1973-05-01

Family

ID=4093908

Family Applications (1)

Application Number Title Priority Date Filing Date
CA925285A Expired CA925285A (en) 1972-07-24 1972-07-24 Apparatus for detecting surface variations

Country Status (1)

Country Link
CA (1) CA925285A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114284A2 (en) * 1982-12-27 1984-08-01 Speno International S.A. Device for continuously measuring the shape of the transversal profile of the useful part of the head of at least one rail of a railway track
FR2614692A1 (en) * 1987-05-01 1988-11-04 Bwg Bergwerk Walzwerk DEVICE FOR DETECTING AT LEAST THE CROSS-WALLING OF METAL STRIPS PASSING IN STRIP TREATMENT PLANTS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114284A2 (en) * 1982-12-27 1984-08-01 Speno International S.A. Device for continuously measuring the shape of the transversal profile of the useful part of the head of at least one rail of a railway track
EP0114284A3 (en) * 1982-12-27 1986-04-23 Speno International S.A. Device for continuously measuring the shape of the transversal profile of the useful part of the head of at least one rail of a railway track
FR2614692A1 (en) * 1987-05-01 1988-11-04 Bwg Bergwerk Walzwerk DEVICE FOR DETECTING AT LEAST THE CROSS-WALLING OF METAL STRIPS PASSING IN STRIP TREATMENT PLANTS

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