GB948070A - Improvements relating to the formation of conductive surfaces - Google Patents

Improvements relating to the formation of conductive surfaces

Info

Publication number
GB948070A
GB948070A GB1241160A GB1241160A GB948070A GB 948070 A GB948070 A GB 948070A GB 1241160 A GB1241160 A GB 1241160A GB 1241160 A GB1241160 A GB 1241160A GB 948070 A GB948070 A GB 948070A
Authority
GB
United Kingdom
Prior art keywords
wire
sleeve
mandrel
resin
grooves
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
GB1241160A
Inventor
Alan Mann
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB1241160A priority Critical patent/GB948070A/en
Publication of GB948070A publication Critical patent/GB948070A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
    • H01C3/14—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element being formed in two or more coils or loops continuously wound as a spiral, helical or toroidal winding
    • H01C3/20—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element being formed in two or more coils or loops continuously wound as a spiral, helical or toroidal winding wound on cylindrical or prismatic base

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

948,070. Transducers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 23,1961 [April 7,1960], No. 12411/60. Heading G1N. A cylindrical member presenting a conductive helical surface consists of an insulating sleeve on which a wire is helically wound and to which it is secured by a bonding material partially embedding the wire, a diameter of the wire being exposed to constitute the helical surface. The member may form part of a capcitative position sensing device. To form an external conductive surface a resin bonded fibre-glass sleeve 1 is provided with at least one helical groove 4 in which wire 5 is wound. The sleeve is then covered with thermosetting resin 6 and when this has hardened the assembly is machined to remove resin and wire to expose a diameter of the latter. Former 2 may be retained to reinforce the assembly. An internal conductive surface may be formed by winding a wire in grooves on a mandrel, applying a layer of resin and then applying a layer of resin bonded fibre glass to form a sleeve. The outer surface is then machined and the assembly is centrally bored out to remove the mandrel and expose the wire at a diameter. In another embodiment (Fig 3) the wire 25 is wound in grooves on a mandrel 22 and a grooved sleeve 21 is screwed on to it. The ends of the wire are secured to pegs 27, 28 on the sleeve and mandrel, and the mandrel is turned slightly to loosen the wire and force it into grooves 26 in the sleeve. After transferring the end of the wire from peg 28 to peg 29 the mandrel is unscrewed, resin is applied to the wire and machining is carried out as before. Specification 872,152 is referred to.
GB1241160A 1960-04-07 1960-04-07 Improvements relating to the formation of conductive surfaces Expired GB948070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1241160A GB948070A (en) 1960-04-07 1960-04-07 Improvements relating to the formation of conductive surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1241160A GB948070A (en) 1960-04-07 1960-04-07 Improvements relating to the formation of conductive surfaces

Publications (1)

Publication Number Publication Date
GB948070A true GB948070A (en) 1964-01-29

Family

ID=10004114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1241160A Expired GB948070A (en) 1960-04-07 1960-04-07 Improvements relating to the formation of conductive surfaces

Country Status (1)

Country Link
GB (1) GB948070A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2660828A4 (en) * 2010-12-31 2017-01-18 Xiamen Set Electronics Co., Ltd Apparatus comprising thermal fuse and resistor
EP3920195A1 (en) * 2020-06-03 2021-12-08 First Resistor & Condenser Co., Ltd. A stacking wire wound resistor and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2660828A4 (en) * 2010-12-31 2017-01-18 Xiamen Set Electronics Co., Ltd Apparatus comprising thermal fuse and resistor
EP3920195A1 (en) * 2020-06-03 2021-12-08 First Resistor & Condenser Co., Ltd. A stacking wire wound resistor and manufacturing method thereof

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