GB840059A - "capacitors" - Google Patents
"capacitors"Info
- Publication number
- GB840059A GB840059A GB3564257A GB3564257A GB840059A GB 840059 A GB840059 A GB 840059A GB 3564257 A GB3564257 A GB 3564257A GB 3564257 A GB3564257 A GB 3564257A GB 840059 A GB840059 A GB 840059A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roll
- metallized
- insulating
- strip
- electrode
- 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
- 239000003990 capacitor Substances 0.000 title abstract 6
- 239000011888 foil Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 238000005507 spraying Methods 0.000 abstract 2
- 239000011810 insulating material Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/32—Wound capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
840,059. Capacitors. STANDARD TELEPHONES & CABLES Ltd. Nov. 15, 1957, No. 35642/57. Class 37. The manufacture of a rolled capacitor comprises the steps of metallizing one surface 2 of an insulating strip 1, the metal extending to only one longitudinal edge of the strip, to form a first electrode; and rolling the metallized strip with a second electrode 3 so that a plurality of successive turns of the roll are offset in the same direction to expose a portion 5 of the metallizing. The insulating strip 1 is of plastic or impregnated paper and metallized on both surfaces, except for portions on respective longitudinal edges, to constitute the electrodes 2, 3; and is rolled with a second insulating strip 4 to form the capacitor. Portions 5, 6 of both electrodes are exposed by offsetting adjacent turns of the roll, and electrical connections to these portions are provided by spray coatings 7 and 8. In another embodiment, Fig. 2 (not shown), two insulating strips, metallized on one side only, are rolled with a third insulating strip which may be twice the thickness of the metallized ones. Alternatively, Fig. 3 (not shown), two strips each metallized on both sides may be wound together. A foil coated on both sides and over or beyond one edge with insulating material constitutes the second electrode in the embodiments of Figs. 4, 5, 6 (not shown), and metallizing on one or both sides of the resulting insulating layer constitutes the first electrode. A first group of successive turns of the roll may be offset in one direction, and a second group in the opposite direction, Fig. 6 (not shown). Inserts of plastic or plastic coated metal may be placed in the roll to project from its ends and thus improve adhesion of the spray coatings 7, 8. Apparatus for producing offset windings, Fig. 7, comprises a rotating shaft 64 carrying the capacitor roll and adapted to drive, through a gear-box 68, a cam 70 abutting the end of an axially slidable former 72, spring-urged 73 into contact with the cam 70, and carrying a spool 75 of metallized coated foil as described in the embodiment of Fig. 5 (not shown). As the capacitor roll is wound, the former 72 is moved axially to and fro by the cam 70 so that successive turns of the roll are relatively offset. Specification 587,935 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3564257A GB840059A (en) | 1957-11-15 | 1957-11-15 | "capacitors" |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3564257A GB840059A (en) | 1957-11-15 | 1957-11-15 | "capacitors" |
Publications (1)
Publication Number | Publication Date |
---|---|
GB840059A true GB840059A (en) | 1960-07-06 |
Family
ID=10379991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3564257A Expired GB840059A (en) | 1957-11-15 | 1957-11-15 | "capacitors" |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB840059A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497931A (en) * | 1966-05-24 | 1970-03-03 | Gen Instrument Corp | Capacitor with attached lead and method of forming same |
US20190019625A1 (en) * | 2017-07-14 | 2019-01-17 | Denso Corporation | Film capacitor and method of manufacturing same |
-
1957
- 1957-11-15 GB GB3564257A patent/GB840059A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497931A (en) * | 1966-05-24 | 1970-03-03 | Gen Instrument Corp | Capacitor with attached lead and method of forming same |
US20190019625A1 (en) * | 2017-07-14 | 2019-01-17 | Denso Corporation | Film capacitor and method of manufacturing same |
US11195662B2 (en) * | 2017-07-14 | 2021-12-07 | Denso Corporation | Film capacitor with a film winding core having metallikon electrodes and busbars on its ends |
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