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AU1454670A - Method and apparatus for detecting holes ina moving web or sheet - Google Patents

Method and apparatus for detecting holes ina moving web or sheet

Info

Publication number
AU1454670A
AU1454670A AU14546/70A AU1454670A AU1454670A AU 1454670 A AU1454670 A AU 1454670A AU 14546/70 A AU14546/70 A AU 14546/70A AU 1454670 A AU1454670 A AU 1454670A AU 1454670 A AU1454670 A AU 1454670A
Authority
AU
Australia
Prior art keywords
sheet
moving web
detecting holes
ina
holes ina
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
AU14546/70A
Inventor
James Hall Robert
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.)
Arjo Wiggins Ltd
Original Assignee
Wiggins Teape Research and Development Ltd
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 Wiggins Teape Research and Development Ltd filed Critical Wiggins Teape Research and Development Ltd
Publication of AU1454670A publication Critical patent/AU1454670A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/894—Pinholes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
AU14546/70A 1969-05-02 1970-05-01 Method and apparatus for detecting holes ina moving web or sheet Expired AU1454670A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2253669A GB1267997A (en) 1969-05-02 1969-05-02 Apparatus for detecting holes in a moving web or sheet
GBGB22536/69 1969-05-02

Publications (1)

Publication Number Publication Date
AU1454670A true AU1454670A (en) 1971-11-04

Family

ID=10180985

Family Applications (1)

Application Number Title Priority Date Filing Date
AU14546/70A Expired AU1454670A (en) 1969-05-02 1970-05-01 Method and apparatus for detecting holes ina moving web or sheet

Country Status (2)

Country Link
AU (1) AU1454670A (en)
GB (1) GB1267997A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE434090B (en) * 1982-11-18 1984-07-02 Esselte Security Syst Ab DEVICE FOR ASTAD COMMUNICATION AND DETECTION OF A CUTTY LAMP Beam OF LIGHT
GB2149092B (en) * 1983-08-25 1987-01-14 Mundet Tipping Limited Paper perforation monitor
DE4133320A1 (en) * 1991-10-08 1993-04-22 Zweckform Buero Prod Gmbh CONTINUOUSLY PERFORATION CONTROLLED CONTINUOUS FORMS AND DEVICE AND METHOD FOR THE PRODUCTION THEREOF

Also Published As

Publication number Publication date
GB1267997A (en) 1972-03-22

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