GB1143323A - Apparatus for detecting and marking defects in longitudinally moving workpieces - Google Patents

Apparatus for detecting and marking defects in longitudinally moving workpieces

Info

Publication number
GB1143323A
GB1143323A GB10044/67A GB1004467A GB1143323A GB 1143323 A GB1143323 A GB 1143323A GB 10044/67 A GB10044/67 A GB 10044/67A GB 1004467 A GB1004467 A GB 1004467A GB 1143323 A GB1143323 A GB 1143323A
Authority
GB
United Kingdom
Prior art keywords
pulse
delay circuits
delay
comparator
defects
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
GB10044/67A
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.)
Republic Steel Corp
Original Assignee
Republic 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 Republic Steel Corp filed Critical Republic Steel Corp
Publication of GB1143323A publication Critical patent/GB1143323A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • G07C3/14—Quality control systems

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nonlinear Science (AREA)
  • Automation & Control Theory (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Quality & Reliability (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
GB10044/67A 1966-03-14 1967-03-02 Apparatus for detecting and marking defects in longitudinally moving workpieces Expired GB1143323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US534033A US3394302A (en) 1966-03-14 1966-03-14 Delay circuitry for automatic bar classifier

Publications (1)

Publication Number Publication Date
GB1143323A true GB1143323A (en) 1969-02-19

Family

ID=24128435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10044/67A Expired GB1143323A (en) 1966-03-14 1967-03-02 Apparatus for detecting and marking defects in longitudinally moving workpieces

Country Status (5)

Country Link
US (1) US3394302A (cg-RX-API-DMAC7.html)
BE (1) BE695170A (cg-RX-API-DMAC7.html)
GB (1) GB1143323A (cg-RX-API-DMAC7.html)
LU (1) LU53159A1 (cg-RX-API-DMAC7.html)
NL (1) NL6703537A (cg-RX-API-DMAC7.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1946510A1 (de) * 1969-09-13 1971-03-18 Friedrich Dr Foerster Anlage zur automatischen Beseitung von Fehlern in Halbzeug aus metallischen Werkstoffen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180230A (en) * 1963-04-09 1965-04-27 Republic Steel Corp Defect marking apparatus
US3290167A (en) * 1963-07-01 1966-12-06 American Mach & Foundry Motion responsive flaw marking apparatus and method

Also Published As

Publication number Publication date
LU53159A1 (cg-RX-API-DMAC7.html) 1967-05-09
NL6703537A (cg-RX-API-DMAC7.html) 1967-09-15
DE1648666A1 (de) 1972-01-05
DE1648666B2 (de) 1972-09-28
BE695170A (cg-RX-API-DMAC7.html) 1967-09-08
US3394302A (en) 1968-07-23

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