GB1302203A - - Google Patents

Info

Publication number
GB1302203A
GB1302203A GB1490369A GB1302203DA GB1302203A GB 1302203 A GB1302203 A GB 1302203A GB 1490369 A GB1490369 A GB 1490369A GB 1302203D A GB1302203D A GB 1302203DA GB 1302203 A GB1302203 A GB 1302203A
Authority
GB
United Kingdom
Prior art keywords
mandrel
foil
coils
cut
coil
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
GB1490369A
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
Publication of GB1302203A publication Critical patent/GB1302203A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H01J29/762—Deflecting by magnetic fields only using saddle coils or printed windings
    • 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
    • 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
    • H01F41/071—Winding coils of special form
    • H01F2041/0711—Winding saddle or deflection coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/70—Electron beam control outside the vessel
    • H01J2229/703—Electron beam control outside the vessel by magnetic fields
    • H01J2229/7032—Conductor design and distribution
    • H01J2229/7035—Wires and conductors
    • H01J2229/7036—Form of conductor
    • H01J2229/7037—Form of conductor flat, e.g. foil, or ribbon type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

1302203 Making scanning coils EMI Ltd 9 March 1970 14903/69 Heading B3A [Also in Division H1] An electrical coil 12 is made by rolling an electrically conductive foil 3 about a mandrel 1 and cutting an annular, substantially cylindrical element 12 from the roll at right-angles to the axis of the mandrel to form two parallel connected half-coils. The foil, which may be of copper or aluminium, is wound around the mandrel 1 with the turns of the foil separated by insulating material 4. The insulation may be formed by anodizing the aluminium. The mandrel is provided with a groove, which houses either a conductive rod 2, extending the length of the mandrel, or the tightly rolled inner end of the foil. The outer end of the foil may be left free or it may have a conductive rod secured thereto. An adhesive may be added during winding or the roll may be impregnated with a suitable liquid substance, which is subjected to a hardening treatment to form a machinable block 14. The coil is cut by boring a hole 10 through the block 14 and a cylindrical cut 11 is then made concentric with the hole to form a cylindrical coil, which comprises a pair of saddle coils. The cut coil is de-burred in an etching bath to prevent short-circuiting at the cut faces. Saddle coils may be made with more than one radius of curvature to suit electron beam devices not having uniform cylindrical shape. Two cylindrical coils are mounted concentrically over the neck of a cathode-ray tube and are connected to sources of deflecting waveforms.
GB1490369A 1969-03-21 1969-03-21 Expired GB1302203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1490369 1969-03-21

Publications (1)

Publication Number Publication Date
GB1302203A true GB1302203A (en) 1973-01-04

Family

ID=10049578

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1490369A Expired GB1302203A (en) 1969-03-21 1969-03-21

Country Status (3)

Country Link
DE (1) DE2013412A1 (en)
FR (1) FR2035162A7 (en)
GB (1) GB1302203A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601501A (en) * 1986-06-10 1988-01-04 Philips Nv ELECTROMAGNETIC DEFLECTOR WIRED DIRECTLY ON A CARRIER.
FR2628256A1 (en) * 1988-03-07 1989-09-08 Comp Generale Electricite CONDUCTOR LIKE A COIL, IN SUPERCONDUCTING MATERIAL

Also Published As

Publication number Publication date
FR2035162A7 (en) 1970-12-18
DE2013412A1 (en) 1970-10-01

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees