GB376769A - Improvements in or relating to flaw detectors - Google Patents

Improvements in or relating to flaw detectors

Info

Publication number
GB376769A
GB376769A GB3113/32A GB311332A GB376769A GB 376769 A GB376769 A GB 376769A GB 3113/32 A GB3113/32 A GB 3113/32A GB 311332 A GB311332 A GB 311332A GB 376769 A GB376769 A GB 376769A
Authority
GB
United Kingdom
Prior art keywords
brushes
rail
march
fluid pressure
new york
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
GB3113/32A
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 Products Inc
Original Assignee
Sperry Products 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 Sperry Products Inc filed Critical Sperry Products Inc
Publication of GB376769A publication Critical patent/GB376769A/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
    • G01N27/72—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
    • G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
    • B61K9/08—Measuring installations for surveying permanent way
    • B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof

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)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

376,769. Magnetic tests. SPERRY PRODUCTS, Inc., Manhattan Bridge Plaza, Brooklyn, New York, U.S.A.-(Assignees of Drake, H. C. ; 65, Lincoln Boulevard, Hempstead, Long Island, New York, U.S.A.) March 13, 1931, No. 3113/32. Convention date, March 18, 1930. Divided on 374,172. [Class 37.] Electromagnetic rail flaw detector apparatus carried on a trolley is provided with a generator supplying current to contact brushes engaging the rail, fluid pressure mechanism being provided for actuating the brushes and holding them in contact with the rail. The fluid pressure apparatus 60, 61 may be double-acting to permit withdrawing the brushes, the piston 62 being pivotally connected at 63 to the brush carriage 11. The brushes are pivotally mounted and are connected by springs 56. A valve 65 connected in parallel with the controls 66, 66<1> may be operated by the driver or test operator.
GB3113/32A 1930-03-18 1931-03-13 Improvements in or relating to flaw detectors Expired GB376769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US436660A US1912569A (en) 1930-03-18 1930-03-18 Rail fissure detector

Publications (1)

Publication Number Publication Date
GB376769A true GB376769A (en) 1932-07-13

Family

ID=23733308

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7779/31A Expired GB374172A (en) 1930-03-18 1931-03-13 Improvements in or relating to flaw detectors
GB3113/32A Expired GB376769A (en) 1930-03-18 1931-03-13 Improvements in or relating to flaw detectors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB7779/31A Expired GB374172A (en) 1930-03-18 1931-03-13 Improvements in or relating to flaw detectors

Country Status (4)

Country Link
US (1) US1912569A (en)
DE (1) DE583065C (en)
FR (1) FR714515A (en)
GB (2) GB374172A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495544A (en) * 1946-09-06 1950-01-24 Magnaflux Corp Pipe welding and magnetic testing apparatus
US2582440A (en) * 1948-09-24 1952-01-15 Frank H Keaton Rail flaw detection apparatus
US2719950A (en) * 1952-03-29 1955-10-04 Youngstown Sheet And Tube Co Mechanism for locating inhomogeneities in a magnetized article
CN106740979B (en) * 2016-12-19 2018-11-09 中车长春轨道客车股份有限公司 Anti- downwarp self-locking device for clearance limit frame crossbeam closed configuration
CN113264082B (en) * 2021-04-08 2022-06-24 南京航空航天大学 High-speed track array ACFM detection probe and detection method thereof

Also Published As

Publication number Publication date
FR714515A (en) 1931-11-16
GB374172A (en) 1932-06-09
US1912569A (en) 1933-06-06
DE583065C (en) 1933-08-28

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