GB329971A - Manufacture of loaded signalling conductors - Google Patents

Manufacture of loaded signalling conductors

Info

Publication number
GB329971A
GB329971A GB643929A GB643929A GB329971A GB 329971 A GB329971 A GB 329971A GB 643929 A GB643929 A GB 643929A GB 643929 A GB643929 A GB 643929A GB 329971 A GB329971 A GB 329971A
Authority
GB
United Kingdom
Prior art keywords
per cent
heat treatment
developing
metals
manufacture
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
GB643929A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB643929A priority Critical patent/GB329971A/en
Publication of GB329971A publication Critical patent/GB329971A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/12—Arrangements for exhibiting specific transmission characteristics
    • H01B11/14—Continuously inductively loaded cables, e.g. Krarup cables

Abstract

329,971. Smith, W. S., Garnett, H. J., and Holden, J. A. Feb. 27, 19'29. Annealing, and modifying physical characteristics of metals. - The treatment of a material for loading a signalling conductor omprises a preliminary heat treatment for the purpose of developing its magnetic properties, followed, after its application to the conductor, by a heat treatment just sufficient to remove strain, but not to cause recrystallisation. The material should be capable of developing after optimum heat treatment a magnetic permeability greater than that of pure charcoal iron. Examples are given of the heat treatments appropriate to alloys described in Specifications 224,972: and 284,789, [Class 82 (i), Metals, Extracting &c.], and to an alloy consisting of 36.5 per cent of nickel, 20 per cent of chromium, 13 per cent of silicon and the balance iron.
GB643929A 1929-02-27 1929-02-27 Manufacture of loaded signalling conductors Expired GB329971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB643929A GB329971A (en) 1929-02-27 1929-02-27 Manufacture of loaded signalling conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB643929A GB329971A (en) 1929-02-27 1929-02-27 Manufacture of loaded signalling conductors

Publications (1)

Publication Number Publication Date
GB329971A true GB329971A (en) 1930-05-27

Family

ID=9814498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB643929A Expired GB329971A (en) 1929-02-27 1929-02-27 Manufacture of loaded signalling conductors

Country Status (1)

Country Link
GB (1) GB329971A (en)

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