GB699274A - Improvements in or relating to electrical capacitors - Google Patents

Improvements in or relating to electrical capacitors

Info

Publication number
GB699274A
GB699274A GB1860451A GB1860451A GB699274A GB 699274 A GB699274 A GB 699274A GB 1860451 A GB1860451 A GB 1860451A GB 1860451 A GB1860451 A GB 1860451A GB 699274 A GB699274 A GB 699274A
Authority
GB
United Kingdom
Prior art keywords
foil
strip
edges
dielectric
reel
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
GB1860451A
Inventor
Francis Joseph Peter Ju Burger
Alan Hugh Boud
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.)
BRITISH DIELECTRIC RES Ltd
Original Assignee
BRITISH DIELECTRIC RES 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 BRITISH DIELECTRIC RES Ltd filed Critical BRITISH DIELECTRIC RES Ltd
Priority to GB1860451A priority Critical patent/GB699274A/en
Priority to ES0204531A priority patent/ES204531A1/en
Publication of GB699274A publication Critical patent/GB699274A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/018—Dielectrics
    • H01G4/06—Solid dielectrics
    • H01G4/14—Organic dielectrics
    • H01G4/18—Organic dielectrics of synthetic material, e.g. derivatives of cellulose
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
    • H01G13/06—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00 with provision for removing metal surfaces

Abstract

699,274. Electric capacitors. BRITISH DIELECTRIC RESEARCH, Ltd. Aug. 6, 1952 [Aug. 7, 1951], No. 18604/51. Class 37. A condenser strip comprising metal foil coated on both sides with resinous dielectric material applied from a liquid composition of that material is subjected to an etching process which removes the metal at one or both edges of the strip, thereby making the width of the foil less than that of the coatings. A condenser strip, Fig. 2, comprising a metallic foil 1 coated on both sides with polystyrene 2 unwinds from a reel 5, Fig. 1, and passes through an electrolytic etching bath 12 and thence via washing bath 19 and drying oven 20 on to take-up reel 21. As drawn from the latter the finished strip appears minus the etched-away margin 26 as in Figs. 3 and 4 with coatings 1 projecting beyond the foil edges. To make the roll capacitor shown, Fig. 5, the strip is cut at 29, Fig. 4, and the two half-strips superposed and rolled together with the undercut foil edges inside the roll. The foil may consist of aluminium, tin or copper and the dielectric may be polytetra fluorethylene. The invention is not limited to electrolytic etching; a purely chemical etching process may be employed.
GB1860451A 1951-08-07 1951-08-07 Improvements in or relating to electrical capacitors Expired GB699274A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1860451A GB699274A (en) 1951-08-07 1951-08-07 Improvements in or relating to electrical capacitors
ES0204531A ES204531A1 (en) 1951-08-07 1952-06-14 Improvements in or relating to electrical capacitors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1860451A GB699274A (en) 1951-08-07 1951-08-07 Improvements in or relating to electrical capacitors

Publications (1)

Publication Number Publication Date
GB699274A true GB699274A (en) 1953-11-04

Family

ID=10115300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1860451A Expired GB699274A (en) 1951-08-07 1951-08-07 Improvements in or relating to electrical capacitors

Country Status (2)

Country Link
ES (1) ES204531A1 (en)
GB (1) GB699274A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333999A (en) * 1965-08-11 1967-08-01 Anaconda Wire & Cable Co Method of making an insulated strip conductor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333999A (en) * 1965-08-11 1967-08-01 Anaconda Wire & Cable Co Method of making an insulated strip conductor

Also Published As

Publication number Publication date
ES204531A1 (en) 1953-07-01

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