JPS523484A - Detecting method of long and broken rail - Google Patents

Detecting method of long and broken rail

Info

Publication number
JPS523484A
JPS523484A JP50078650A JP7865075A JPS523484A JP S523484 A JPS523484 A JP S523484A JP 50078650 A JP50078650 A JP 50078650A JP 7865075 A JP7865075 A JP 7865075A JP S523484 A JPS523484 A JP S523484A
Authority
JP
Japan
Prior art keywords
long
detecting method
broken rail
rail
broken
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.)
Pending
Application number
JP50078650A
Other languages
Japanese (ja)
Inventor
Toshio Kozuka
Akio Shiotani
Kakutaro Wada
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
Japan National Railways
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 JAPANESE NATIONAL RAILWAYS<JNR>, Japan National Railways filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP50078650A priority Critical patent/JPS523484A/en
Publication of JPS523484A publication Critical patent/JPS523484A/en
Pending legal-status Critical Current

Links

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  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To detect the breakage of long rail set up at such a block of railroad track of high humidity or submersion as a long tunnel where to equip with a truck circuit is impossible.
COPYRIGHT: (C)1977,JPO&Japio
JP50078650A 1975-06-26 1975-06-26 Detecting method of long and broken rail Pending JPS523484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50078650A JPS523484A (en) 1975-06-26 1975-06-26 Detecting method of long and broken rail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50078650A JPS523484A (en) 1975-06-26 1975-06-26 Detecting method of long and broken rail

Publications (1)

Publication Number Publication Date
JPS523484A true JPS523484A (en) 1977-01-11

Family

ID=13667729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50078650A Pending JPS523484A (en) 1975-06-26 1975-06-26 Detecting method of long and broken rail

Country Status (1)

Country Link
JP (1) JPS523484A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03176566A (en) * 1989-12-05 1991-07-31 Takenaka Komuten Co Ltd Method of covering with refractory material
US11094954B2 (en) 2017-09-21 2021-08-17 Kabushiki Kaisha Toshiba Electrode, membrane electrode assembly, electrochemical cell, stack, fuel cell, vehicle and flying object

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550434A (en) * 1968-01-11 1970-12-29 Arvin Systems Inc Flaw detection system and probe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550434A (en) * 1968-01-11 1970-12-29 Arvin Systems Inc Flaw detection system and probe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03176566A (en) * 1989-12-05 1991-07-31 Takenaka Komuten Co Ltd Method of covering with refractory material
US11094954B2 (en) 2017-09-21 2021-08-17 Kabushiki Kaisha Toshiba Electrode, membrane electrode assembly, electrochemical cell, stack, fuel cell, vehicle and flying object

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