GB290073A - Improved method of and apparatus for detecting flaws or hidden fissures in metal bars, rails and the like - Google Patents

Improved method of and apparatus for detecting flaws or hidden fissures in metal bars, rails and the like

Info

Publication number
GB290073A
GB290073A GB1954727A GB1954727A GB290073A GB 290073 A GB290073 A GB 290073A GB 1954727 A GB1954727 A GB 1954727A GB 1954727 A GB1954727 A GB 1954727A GB 290073 A GB290073 A GB 290073A
Authority
GB
United Kingdom
Prior art keywords
pen
pens
rails
metal bars
detecting flaws
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
GB1954727A
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.)
Sperry Gyroscope Co Ltd
Original Assignee
Sperry Gyroscope Co 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
Priority to BE356217D priority Critical patent/BE356217A/xx
Application filed by Sperry Gyroscope Co Ltd filed Critical Sperry Gyroscope Co Ltd
Priority to GB1954727A priority patent/GB290073A/en
Priority to FR645301D priority patent/FR645301A/fr
Publication of GB290073A publication Critical patent/GB290073A/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
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/20—Investigating the presence of flaws

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Recording Measured Values (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
GB1954727A 1927-07-22 1927-07-22 Improved method of and apparatus for detecting flaws or hidden fissures in metal bars, rails and the like Expired GB290073A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE356217D BE356217A (enrdf_load_stackoverflow) 1927-07-22
GB1954727A GB290073A (en) 1927-07-22 1927-07-22 Improved method of and apparatus for detecting flaws or hidden fissures in metal bars, rails and the like
FR645301D FR645301A (fr) 1927-07-22 1927-11-29 Procédé et appareils perfectionnés pour déceler les crevasses ou fissures cachées qui peuvent exister dans des barres de métal, dans des rails ou dans tous autres éléments analogues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1954727A GB290073A (en) 1927-07-22 1927-07-22 Improved method of and apparatus for detecting flaws or hidden fissures in metal bars, rails and the like

Publications (1)

Publication Number Publication Date
GB290073A true GB290073A (en) 1928-05-10

Family

ID=10131193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1954727A Expired GB290073A (en) 1927-07-22 1927-07-22 Improved method of and apparatus for detecting flaws or hidden fissures in metal bars, rails and the like

Country Status (3)

Country Link
BE (1) BE356217A (enrdf_load_stackoverflow)
FR (1) FR645301A (enrdf_load_stackoverflow)
GB (1) GB290073A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE356217A (enrdf_load_stackoverflow)
FR645301A (fr) 1928-10-23

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