GB504993A - Improvements in or relating to the production from incombustible fibrous substances of ribbons or strips of insulating material for electrotechnical purposes - Google Patents
Improvements in or relating to the production from incombustible fibrous substances of ribbons or strips of insulating material for electrotechnical purposesInfo
- Publication number
- GB504993A GB504993A GB24255/38A GB2425538A GB504993A GB 504993 A GB504993 A GB 504993A GB 24255/38 A GB24255/38 A GB 24255/38A GB 2425538 A GB2425538 A GB 2425538A GB 504993 A GB504993 A GB 504993A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- strip
- ribbons
- insulating material
- aug
- 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
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Insulating Bodies (AREA)
Abstract
504,993. Electric insulation; cables. PATENTVERWERTUNGS-GES. HERMES. Aug. 17, 1938, No. 24255. Convention date, Aug. 20, 1937. Drawings to Specification. [Class 36] [Also in Group VIII] Strips or ribbons of insulating material are made by dispersing a mixture of a filler such as quartz meal, heavy spar, magnesium oxide or magnesium carbonate with slag wool or stone wool fibres in a liquid such as water, if desired with the addition of adhesives such as water glass, silica gel, porcelain or marble cements, or cellulosic fibres such as manilla, forming a strip or ribbon therefrom and drying. The dispersion is worked up in a manner similar to papermaking and the strip may be calendered during or after drying. The strips may be wound or spun on to or folded around a conductor and coils produced from such insulated conductors, may be subsequently impregnated in vacuo with aqueous dispersions of ceramic masses such as kaolin, porcelain earth, clay or enamel and baked at a high temperature e.g. 800‹ C. Artificial resin or chloronaphthalene may also be used as impregnants. The strip may be wound to form cylinders which may be similarly impregnated. The strips may be used as insulation in furnace transformers, and may be shaped to provide insulating bushings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE504993X | 1937-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB504993A true GB504993A (en) | 1939-05-03 |
Family
ID=6546289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24255/38A Expired GB504993A (en) | 1937-08-20 | 1938-08-17 | Improvements in or relating to the production from incombustible fibrous substances of ribbons or strips of insulating material for electrotechnical purposes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB504993A (en) |
-
1938
- 1938-08-17 GB GB24255/38A patent/GB504993A/en not_active Expired
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