GB948070A - Improvements relating to the formation of conductive surfaces - Google Patents
Improvements relating to the formation of conductive surfacesInfo
- 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
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.
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)
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 |
-
1960
- 1960-04-07 GB GB1241160A patent/GB948070A/en not_active Expired
Cited By (2)
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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