GB439831A - Improvements in or relating to insulated electric conductors - Google Patents
Improvements in or relating to insulated electric conductorsInfo
- Publication number
- GB439831A GB439831A GB17901/34A GB1790134A GB439831A GB 439831 A GB439831 A GB 439831A GB 17901/34 A GB17901/34 A GB 17901/34A GB 1790134 A GB1790134 A GB 1790134A GB 439831 A GB439831 A GB 439831A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- threads
- conductor
- solvent
- cellulose acetate
- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
Landscapes
- Insulating Bodies (AREA)
- Organic Insulating Materials (AREA)
Abstract
439,831. Insulated conductors. ASSOCIATED ELECTRIC LABORATORIES, Inc., 1033, West Van Buren Street, Chicago, U.S.A. June 16, 1934, No. 17901. Convention date, July 5, 1933. [Class 36] An insulated conductor, particularly for use on telephone switchboards, is made by first coating a wire with a layer of artificial silk or similar fibres which are capable of being rendered plastic by a solvent, such as acetone, and then applying one or more layers of fibrous material which is not affected by the solvent, the whole being subsequently saturated with the solvent for the first layer, thereby causing the outer surface of that layer to become plastic and to exude between the fibres of the outer layer so as to bind them together and to the first layer. In the construction shown, a conductor 5 having an enamel coating 6 is lapped with cellulose acetate threads 7 and is enclosed in a wrapping 8 of cotton threads, the insulated conductor thus formed being passed through acetone to cause the cellulose acetate threads to coalesce and bind the cotton threads together. In a modified construction the cotton threads are braided about the layer of cellulose acetate threads. The conductor may be flame-proofed by impregnation with chlorinated naphthalene. Specification 382,662 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US439831XA | 1933-07-05 | 1933-07-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB439831A true GB439831A (en) | 1935-12-16 |
Family
ID=21929913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17901/34A Expired GB439831A (en) | 1933-07-05 | 1934-06-16 | Improvements in or relating to insulated electric conductors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB439831A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764287C (en) * | 1937-10-05 | 1954-05-17 | Siemens Schuckertwerke A G | Process for the production of insulated electrical lines with braiding or spinning made of fibrous materials which is attached over a sleeve made of thermoplastic plastics and is not bonded or bonded to this |
-
1934
- 1934-06-16 GB GB17901/34A patent/GB439831A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764287C (en) * | 1937-10-05 | 1954-05-17 | Siemens Schuckertwerke A G | Process for the production of insulated electrical lines with braiding or spinning made of fibrous materials which is attached over a sleeve made of thermoplastic plastics and is not bonded or bonded to this |
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