GB187441A - Improvements relating to electricity measuring instruments - Google Patents

Improvements relating to electricity measuring instruments

Info

Publication number
GB187441A
GB187441A GB2690121A GB2690121A GB187441A GB 187441 A GB187441 A GB 187441A GB 2690121 A GB2690121 A GB 2690121A GB 2690121 A GB2690121 A GB 2690121A GB 187441 A GB187441 A GB 187441A
Authority
GB
United Kingdom
Prior art keywords
secured
posts
plate
washers
heads
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
GB2690121A
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.)
OSWALD AUGUSTINE MILLER
Original Assignee
OSWALD AUGUSTINE MILLER
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 OSWALD AUGUSTINE MILLER filed Critical OSWALD AUGUSTINE MILLER
Priority to GB2690121A priority Critical patent/GB187441A/en
Publication of GB187441A publication Critical patent/GB187441A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

187,441. Lucas, H., Danks, E. J. B., and Miller, O. A. Oct. 11, 1921. Electromagnetic current' meters.- An electric measuring - dnstrument, such as an ammeter, comprises a short bar magnet c secured to the main plate a of the instrument, a coil h of stiff wire adjustably secured alongside it, and an iron armature m located in or at one of the open ends of the coil and mounted on an arbor n carrying an index finger o. The bar magnet c is clipped at its ends and sides by tongues b, d pressed up from the rear side of the plate a, the front side being arranged as a scale. A metal bridge e, secured to the rear side of the plate a, carries a pair of terminal posts f, each provided with a transverse hole to receive the ends g of the coils h, which are adjustably secured between the heads i of the posts and washers j. To prevent rotation of the posts their heads are of square section, or one side may be made flat, to co-operate with the adjacent portion of the bridge e from which they are insulated by strips k and washers l. The instrument can be mounted in an iron case p.
GB2690121A 1921-10-11 1921-10-11 Improvements relating to electricity measuring instruments Expired GB187441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2690121A GB187441A (en) 1921-10-11 1921-10-11 Improvements relating to electricity measuring instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2690121A GB187441A (en) 1921-10-11 1921-10-11 Improvements relating to electricity measuring instruments

Publications (1)

Publication Number Publication Date
GB187441A true GB187441A (en) 1922-10-26

Family

ID=10250985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2690121A Expired GB187441A (en) 1921-10-11 1921-10-11 Improvements relating to electricity measuring instruments

Country Status (1)

Country Link
GB (1) GB187441A (en)

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