GB904691A - Improvements in electrical moving coil instruments - Google Patents

Improvements in electrical moving coil instruments

Info

Publication number
GB904691A
GB904691A GB4018158A GB4018158A GB904691A GB 904691 A GB904691 A GB 904691A GB 4018158 A GB4018158 A GB 4018158A GB 4018158 A GB4018158 A GB 4018158A GB 904691 A GB904691 A GB 904691A
Authority
GB
United Kingdom
Prior art keywords
moving coil
electrical moving
disc
group xxxvi
barium
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
GB4018158A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB4018158A priority Critical patent/GB904691A/en
Publication of GB904691A publication Critical patent/GB904691A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

904,691. Magnetic structures. PARKER, L. W. Dec. 12, 1958, No. 40181/58. Drawings to Specification. Addition to 806,039. Class 38 (2). [Also in Group XXXVI] The permanent magnet for an electric instrument (see Group XXXVI) may consist of a solid disc of magnetic ceramic material (e.g. a composition of barium and iron oxides or a manganese-bismuth alloy or a barium ferrite) having upper and lower sector-shaped portions magnetized in opposite directions perpendicular to the faces of the disc. Specification 596,966 also is referred to.
GB4018158A 1958-12-12 1958-12-12 Improvements in electrical moving coil instruments Expired GB904691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4018158A GB904691A (en) 1958-12-12 1958-12-12 Improvements in electrical moving coil instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4018158A GB904691A (en) 1958-12-12 1958-12-12 Improvements in electrical moving coil instruments

Publications (1)

Publication Number Publication Date
GB904691A true GB904691A (en) 1962-08-29

Family

ID=10413603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4018158A Expired GB904691A (en) 1958-12-12 1958-12-12 Improvements in electrical moving coil instruments

Country Status (1)

Country Link
GB (1) GB904691A (en)

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