GB1182494A - Method of Producing Bobbins of Large Dimensions and New Products thus Obtained - Google Patents
Method of Producing Bobbins of Large Dimensions and New Products thus ObtainedInfo
- Publication number
- GB1182494A GB1182494A GB2075567A GB2075567A GB1182494A GB 1182494 A GB1182494 A GB 1182494A GB 2075567 A GB2075567 A GB 2075567A GB 2075567 A GB2075567 A GB 2075567A GB 1182494 A GB1182494 A GB 1182494A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fabric
- coil
- former
- technique
- thermosetting material
- 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
- H01F5/00—Coils
- H01F5/06—Insulation of windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulating Of Coils (AREA)
Abstract
1,182,494. Electric coils. SOC. INDUSTRIELLE DE LIAISONS ELECTRIQUES. 4 May, 1967 [4 May, 1966], No. 20755/67. Heading H1P. Electric coils are made by winding a cable on to a former having end flanges, winding a layer of fabric on to each layer of cable, the fabric not having been treated with a thermosetting material and impregnating the coil under vacuum with a thermosetting material. The impregnation may take place with the windings on the former or the former may be dismantled, the coil placed in a container and then impregnated. In the first technique, a casing is fitted over the flanges to give a vacuum-tight chamber which is evacuated through one orifice and the thermosetting material drawn in through a number of orifices. The fabric may be made of synthetic, natural or glass fibre. If the coil is used in a high voltage network, then its outer surface must be covered with fabric layers of high mechanical strength. In the first impregnation technique, this may be achieved by covering the impregnated coil with the fabric layers and impregnating a second time. In the second technique, the outer fabric cover is provided on the coil after removal of the former but before impregnation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR60213A FR1484780A (en) | 1966-05-04 | 1966-05-04 | Process for producing large coils and new products thus obtained |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1182494A true GB1182494A (en) | 1970-02-25 |
Family
ID=8607798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2075567A Expired GB1182494A (en) | 1966-05-04 | 1967-05-04 | Method of Producing Bobbins of Large Dimensions and New Products thus Obtained |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE697924A (en) |
| FR (1) | FR1484780A (en) |
| GB (1) | GB1182494A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2409179A1 (en) * | 1977-11-22 | 1979-06-15 | Knorr Bremse Gmbh | Rail brake magnet energising winding - has thin fibre-chain mesh to cladding wall interior, and non-ferrous metal encasing top edges |
-
1966
- 1966-05-04 FR FR60213A patent/FR1484780A/en not_active Expired
-
1967
- 1967-05-02 BE BE697924D patent/BE697924A/xx unknown
- 1967-05-04 GB GB2075567A patent/GB1182494A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2409179A1 (en) * | 1977-11-22 | 1979-06-15 | Knorr Bremse Gmbh | Rail brake magnet energising winding - has thin fibre-chain mesh to cladding wall interior, and non-ferrous metal encasing top edges |
Also Published As
| Publication number | Publication date |
|---|---|
| BE697924A (en) | 1967-10-16 |
| FR1484780A (en) | 1967-06-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |