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FR634734A - Improvements to mandrels intended for the manufacture of coils used more particularly in wireless telephony and telegraphy - Google Patents

Improvements to mandrels intended for the manufacture of coils used more particularly in wireless telephony and telegraphy

Info

Publication number
FR634734A
FR634734A FR634734DA FR634734A FR 634734 A FR634734 A FR 634734A FR 634734D A FR634734D A FR 634734DA FR 634734 A FR634734 A FR 634734A
Authority
FR
France
Prior art keywords
telegraphy
manufacture
wireless telephony
coils used
mandrels
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
Other languages
French (fr)
Inventor
Louis Basile
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 filed Critical
Application granted granted Critical
Publication of FR634734A publication Critical patent/FR634734A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/098—Mandrels; Formers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
FR634734D 1927-05-20 1927-05-20 Improvements to mandrels intended for the manufacture of coils used more particularly in wireless telephony and telegraphy Expired FR634734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR634734T 1927-05-20

Publications (1)

Publication Number Publication Date
FR634734A true FR634734A (en) 1928-02-24

Family

ID=8993782

Family Applications (1)

Application Number Title Priority Date Filing Date
FR634734D Expired FR634734A (en) 1927-05-20 1927-05-20 Improvements to mandrels intended for the manufacture of coils used more particularly in wireless telephony and telegraphy

Country Status (1)

Country Link
FR (1) FR634734A (en)

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