GB1246786A - Improved belt fissure detection device - Google Patents

Improved belt fissure detection device

Info

Publication number
GB1246786A
GB1246786A GB1333170A GB1333170A GB1246786A GB 1246786 A GB1246786 A GB 1246786A GB 1333170 A GB1333170 A GB 1333170A GB 1333170 A GB1333170 A GB 1333170A GB 1246786 A GB1246786 A GB 1246786A
Authority
GB
United Kingdom
Prior art keywords
loop
coils
belt
coil
loops
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
GB1333170A
Inventor
Zenji Nagata
Hirokazu Kouno
Masamitsu Ui
Tokio Fujimoto
Kenichi Yoshida
Noritaka Kurauchi
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.)
Sumitomo Riko Co Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Riko Co Ltd
Sumitomo Electric Industries 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
Application filed by Sumitomo Riko Co Ltd, Sumitomo Electric Industries Ltd filed Critical Sumitomo Riko Co Ltd
Priority to GB1333170A priority Critical patent/GB1246786A/en
Publication of GB1246786A publication Critical patent/GB1246786A/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
    • G01N27/90—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating

Abstract

1, 246, 786. Flaw detectors. SUMITOMO ELECTRIC INDUSTRIES Ltd and TOKAI RUBBER INDUSTRIES Ltd. March 19, 1970, No. 13331/ 70. Heading GIN. Fissures in a conveyer belt are detected by pairs of loop-coils implanted in the belt at spaced intervals to couple transmitter and receiver coils as the loops pass the detector station. CONTROL CIRCUIT Fig. 4 (not shown). The two pulses normally produced by the passage of each loop pair are fed to AND/OR gates, triggering and resetting a flip-flop. A single pulse due to breakage of either coil leaves a steady output, which integrated over a short time reaches a set (comparison) level to actuate alarm and control circuits. LOOP-COIL ARRANGEMENTS. Lengthwise and transverse loops 2, 6, are embedded in the belt Figs. 1, 2 to co-operate with a transmitter coil A and receiver coils B, C, which may be mounted for transverse movement by belt-edgefeelers to maintain alignment with the loops. The coils A, B, C are preferably tuned and wound on a ferrite core together with a low-impedance coupling coil for connection to the transmitter / receiver Figs. 5, 6 (not shown). Minor modifications of the loop layout are illustrated Figs. 7..16 (not shown) including three rectangular coils with two transmitters (G), (H) and three receivers (J), (K), (P), Figs. 13, 14. Flexible loop conductors may be wound as a helix on a plastics core which is then coiled or twisted, or several such conductors may be arranged in parallel in a band Figs. 18..23 (not shown).
GB1333170A 1970-03-19 1970-03-19 Improved belt fissure detection device Expired GB1246786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1333170A GB1246786A (en) 1970-03-19 1970-03-19 Improved belt fissure detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1333170A GB1246786A (en) 1970-03-19 1970-03-19 Improved belt fissure detection device

Publications (1)

Publication Number Publication Date
GB1246786A true GB1246786A (en) 1971-09-22

Family

ID=10020991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1333170A Expired GB1246786A (en) 1970-03-19 1970-03-19 Improved belt fissure detection device

Country Status (1)

Country Link
GB (1) GB1246786A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005030621A1 (en) * 2003-09-25 2005-04-07 Phoenix Ag Conductor loop
WO2010133387A1 (en) 2009-05-20 2010-11-25 Phoenix Conveyor Belt Systems Gmbh Conductor loop, in particular for a conveyor belt
WO2013007454A1 (en) * 2011-07-11 2013-01-17 Phoenix Conveyor Belt Systems Gmbh Conveyor belt having a hybrid conductor loop
DE102011054561A1 (en) 2011-10-18 2013-04-18 Phoenix Conveyor Belt Systems Gmbh Steel cable conveyor belt with a conductor loop installed by means of electromagnetic induction and method for installing the conductor loop
US11360050B2 (en) 2016-04-22 2022-06-14 Baker Hughes Energy Technology UK Limited Hoses, and detecting failures in reinforced hoses

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005030621A1 (en) * 2003-09-25 2005-04-07 Phoenix Ag Conductor loop
US7178663B2 (en) 2003-09-25 2007-02-20 Phoenix Conveyor Belt Systems Gmbh Conductor loop
WO2010133387A1 (en) 2009-05-20 2010-11-25 Phoenix Conveyor Belt Systems Gmbh Conductor loop, in particular for a conveyor belt
DE102009025848A1 (en) 2009-05-20 2010-11-25 Phoenix Conveyor Belt Systems Gmbh Conductor loop, in particular for a conveyor belt
CN102428014A (en) * 2009-05-20 2012-04-25 凤凰传送带系统有限公司 Conductor loop, in particular for a conveyor belt
US9440798B2 (en) 2009-05-20 2016-09-13 Phoenix Conveyor Belt Systems Gmbh Conductor loop, in particular for a conveyor belt
WO2013007454A1 (en) * 2011-07-11 2013-01-17 Phoenix Conveyor Belt Systems Gmbh Conveyor belt having a hybrid conductor loop
DE102011051722A1 (en) 2011-07-11 2013-01-17 Phoenix Conveyor Belt Systems Gmbh Conveyor belt with a hybrid conductor loop
US9016465B2 (en) 2011-07-11 2015-04-28 Phoenix Conveyor Belt Systems Gmbh Conveyor belt arrangement including a conveyor belt having a hybrid conductor loop
DE102011054561A1 (en) 2011-10-18 2013-04-18 Phoenix Conveyor Belt Systems Gmbh Steel cable conveyor belt with a conductor loop installed by means of electromagnetic induction and method for installing the conductor loop
EP2583918A1 (en) 2011-10-18 2013-04-24 Phoenix Conveyor Belt Systems GmbH Steel cable conveyor with a conducting loop built in using electromagnetic induction and method for integrating the conducting loop
US11360050B2 (en) 2016-04-22 2022-06-14 Baker Hughes Energy Technology UK Limited Hoses, and detecting failures in reinforced hoses

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