GB586612A - Improvements in or relating to photo-electric means for the detection of pin-holes in metal strip - Google Patents

Improvements in or relating to photo-electric means for the detection of pin-holes in metal strip

Info

Publication number
GB586612A
GB586612A GB19810/44A GB1981044A GB586612A GB 586612 A GB586612 A GB 586612A GB 19810/44 A GB19810/44 A GB 19810/44A GB 1981044 A GB1981044 A GB 1981044A GB 586612 A GB586612 A GB 586612A
Authority
GB
United Kingdom
Prior art keywords
strip
photo
edges
pin
carriages
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
GB19810/44A
Other languages
English (en)
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.)
Carnegie Illinois Steel Corp
Original Assignee
Carnegie Illinois Steel Corp
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 Carnegie Illinois Steel Corp filed Critical Carnegie Illinois Steel Corp
Publication of GB586612A publication Critical patent/GB586612A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/89Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901Optical details; Scanning details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/89Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/89Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/894Pinholes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00Photoelectric discharge tubes not involving the ionisation of a gas

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)
  • Electroplating Methods And Accessories (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB19810/44A 1944-04-25 1944-10-13 Improvements in or relating to photo-electric means for the detection of pin-holes in metal strip Expired GB586612A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US532683A US2395181A (en) 1944-04-25 1944-04-25 Scanning light control for pinhole detectors

Publications (1)

Publication Number Publication Date
GB586612A true GB586612A (en) 1947-03-25

Family

ID=24122738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19810/44A Expired GB586612A (en) 1944-04-25 1944-10-13 Improvements in or relating to photo-electric means for the detection of pin-holes in metal strip

Country Status (3)

Country Link
US (1) US2395181A (enrdf_load_stackoverflow)
BE (1) BE485224A (enrdf_load_stackoverflow)
GB (1) GB586612A (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE25671E (en) * 1964-10-27 Servo-controlled shutters for pinhole detectors
US2617483A (en) * 1947-10-08 1952-11-11 Donald C Porter Automatic electronic control mechanism
US2697649A (en) * 1949-04-19 1954-12-21 Ibm Card to film and film to card machine
US2739503A (en) * 1952-01-24 1956-03-27 Bethlehem Steel Corp Inspection device for moving strip
US2730348A (en) * 1952-05-14 1956-01-10 United States Steel Corp Edge scanner for strip material
US2820908A (en) * 1955-07-01 1958-01-21 Linderman Engineering Company Light shield
US3001080A (en) * 1956-01-11 1961-09-19 Special Instr Lab Inc Inspection apparatus
GB885278A (en) * 1957-04-09 1961-12-20 Nash Paul Inspection and sorting of sheet materials by photoelectric means
US2886716A (en) * 1957-07-23 1959-05-12 United States Steel Corp Light carriage and strip guide mechanism for pin hole detector
NL109617C (enrdf_load_stackoverflow) * 1958-11-07
US3255356A (en) * 1961-05-01 1966-06-07 Bethiehem Steel Corp Light responsive non-contact shielding device
US3368079A (en) * 1965-11-04 1968-02-06 United States Steel Corp Strip guide for a pinhole detector
US4305816A (en) * 1980-02-11 1981-12-15 Borden, Inc. Apparatus and method for inspecting containers

Also Published As

Publication number Publication date
US2395181A (en) 1946-02-19
BE485224A (enrdf_load_stackoverflow) 1900-01-01

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