GB735881A - Improvements relating to indicating devices for electric and magnetic circuits - Google Patents

Improvements relating to indicating devices for electric and magnetic circuits

Info

Publication number
GB735881A
GB735881A GB2037652A GB2037652A GB735881A GB 735881 A GB735881 A GB 735881A GB 2037652 A GB2037652 A GB 2037652A GB 2037652 A GB2037652 A GB 2037652A GB 735881 A GB735881 A GB 735881A
Authority
GB
United Kingdom
Prior art keywords
electric
improvements relating
magnetic circuits
indicating devices
series
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
GB2037652A
Inventor
Alan Marsh Armour
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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
Application filed by Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB2037652A priority Critical patent/GB735881A/en
Publication of GB735881A publication Critical patent/GB735881A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/14—Indicating direction of current; Indicating polarity of voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

735,881. Current direction indicators. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 23, 1953 [Aug. 13, 1952], No. 20376/52. Class 37. Apparatus for indicating the direction of current flow in an electric circuit, e.g. of an electromagnet used in crack detecting apparatus of the kind described in Specification 735,880, comprises in series with the energizing coil 2 a resistor 1 shunted with two parallel arms respectively containing oppositely poled half-wave rectifiers 4, 6 in series with indicator lamps 3, 5, one of which is illuminated for current flow in each direction.
GB2037652A 1952-08-13 1952-08-13 Improvements relating to indicating devices for electric and magnetic circuits Expired GB735881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2037652A GB735881A (en) 1952-08-13 1952-08-13 Improvements relating to indicating devices for electric and magnetic circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2037652A GB735881A (en) 1952-08-13 1952-08-13 Improvements relating to indicating devices for electric and magnetic circuits

Publications (1)

Publication Number Publication Date
GB735881A true GB735881A (en) 1955-08-31

Family

ID=10144929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2037652A Expired GB735881A (en) 1952-08-13 1952-08-13 Improvements relating to indicating devices for electric and magnetic circuits

Country Status (1)

Country Link
GB (1) GB735881A (en)

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