GB453779A - Improvements in or relating to electric cables insulated with magnesia - Google Patents
Improvements in or relating to electric cables insulated with magnesiaInfo
- Publication number
- GB453779A GB453779A GB8264/35A GB826435A GB453779A GB 453779 A GB453779 A GB 453779A GB 8264/35 A GB8264/35 A GB 8264/35A GB 826435 A GB826435 A GB 826435A GB 453779 A GB453779 A GB 453779A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnesium
- braidings
- magnesia
- wires
- braiding
- 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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/16—Rigid-tube cables
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
Landscapes
- Insulated Conductors (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
453,779. Cables. CONDUCTEUR ELECTRIQUE BLINDE INCOMBUSTIBLE, 54, Avenue Marceau, Paris. March 16, 1935, No. 8264. Convention date, March 20, 1934. Drawings to Specification. [Class 36] In manufacturing electric cables insulated with powdered magnesia formed in situ by oxidizing magnesium wires, the magnesium wires are braided around a central conductor and then oxidized in situ to form the magnesia insulation, the whole being subsequently enclosed in a fluid-tight sheathing. For a multicore concentric cable magnesium wires and conducting wires are successively loosely braided around a central conductor in alternate layers, and a braiding of textile material is disposed around the outermost magnesium braiding, steam then being caused to penetrate through the braidings to convert the magnesium into magnesium hydroxide which is transformed by heat into magnesia, the whole being subsequently enclosed in a fluid-tight sheathing, for example of copper. Alternatively, one or more of the magnesium wire braidings may be replaced by loose textile braidings, the arrangement being such that the magnesia when formed will expand and substantially fill the interstices in the textile and conducting braidings. The various braidings may be applied in a continuous manner in a multi-stage braiding machine. Specification 453,770 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR653155X | 1934-03-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB453779A true GB453779A (en) | 1936-09-16 |
Family
ID=9005705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8264/35A Expired GB453779A (en) | 1934-03-20 | 1935-03-16 | Improvements in or relating to electric cables insulated with magnesia |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE408246A (en) |
DE (1) | DE653155C (en) |
FR (1) | FR783506A (en) |
GB (1) | GB453779A (en) |
NL (1) | NL39711C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH668900A5 (en) * | 1986-03-07 | 1989-02-15 | Sulzer Ag | ARTIFICIAL CROSSBAND FOR A KNEE JOINT. |
-
0
- BE BE408246D patent/BE408246A/xx unknown
- NL NL39711D patent/NL39711C/xx active
-
1934
- 1934-03-20 FR FR783506D patent/FR783506A/en not_active Expired
-
1935
- 1935-03-16 GB GB8264/35A patent/GB453779A/en not_active Expired
- 1935-03-20 DE DEC50319D patent/DE653155C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL39711C (en) | |
BE408246A (en) | |
FR783506A (en) | 1935-07-15 |
DE653155C (en) | 1937-11-16 |
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