GB852385A - An improved instrument for indicating the strength of magnets - Google Patents

An improved instrument for indicating the strength of magnets

Info

Publication number
GB852385A
GB852385A GB2116058A GB2116058A GB852385A GB 852385 A GB852385 A GB 852385A GB 2116058 A GB2116058 A GB 2116058A GB 2116058 A GB2116058 A GB 2116058A GB 852385 A GB852385 A GB 852385A
Authority
GB
United Kingdom
Prior art keywords
magnet
strength
spring
base plate
pointer
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
GB2116058A
Inventor
Robert Ernest Judd
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.)
Tyer and Co Ltd
Original Assignee
Tyer and 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 Tyer and Co Ltd filed Critical Tyer and Co Ltd
Priority to GB2116058A priority Critical patent/GB852385A/en
Publication of GB852385A publication Critical patent/GB852385A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/038—Measuring direction or magnitude of magnetic fields or magnetic flux using permanent magnets, e.g. balances, torsion devices

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

852,385. Magnetic tests. TYER & CO. Ltd. July 2, 1958, No. 21160/58. Class 37 The strength of a magnet is determined by a Z-shaped armature 10 carrying a pointer 12 and mounted between pole-pieces 7, 8 carried respectively on a base plate 1 and a spaced screening plate 3. The base plate is positioned on a polepiece of a magnet under test when movement of a pointer against the action of a spring 17 is indicated against a scale which may be divided into coloured warning sections. Screws 22, 28 allow adjustment of the tension and angle of spring 17. A roller, polarized as shown, is rotated to display an indication in a window on the top of the instrument which indicates the polarity of the magnet pole and hence, in a particular oilway signalling system, whether the magnet is permanent or electromagnetic.
GB2116058A 1958-07-02 1958-07-02 An improved instrument for indicating the strength of magnets Expired GB852385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2116058A GB852385A (en) 1958-07-02 1958-07-02 An improved instrument for indicating the strength of magnets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2116058A GB852385A (en) 1958-07-02 1958-07-02 An improved instrument for indicating the strength of magnets

Publications (1)

Publication Number Publication Date
GB852385A true GB852385A (en) 1960-10-26

Family

ID=10158186

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2116058A Expired GB852385A (en) 1958-07-02 1958-07-02 An improved instrument for indicating the strength of magnets

Country Status (1)

Country Link
GB (1) GB852385A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111552169A (en) * 2019-02-12 2020-08-18 精工爱普生株式会社 Electronic clock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111552169A (en) * 2019-02-12 2020-08-18 精工爱普生株式会社 Electronic clock
CN111552169B (en) * 2019-02-12 2022-11-22 精工爱普生株式会社 Electronic clock

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