US1598452A - Method of manufacturing uniformly-loaded conductors - Google Patents

Method of manufacturing uniformly-loaded conductors Download PDF

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Publication number
US1598452A
US1598452A US50144A US5014425A US1598452A US 1598452 A US1598452 A US 1598452A US 50144 A US50144 A US 50144A US 5014425 A US5014425 A US 5014425A US 1598452 A US1598452 A US 1598452A
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US
United States
Prior art keywords
conductor
lac
loading
layer
copper
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 - Lifetime
Application number
US50144A
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English (en)
Inventor
Schurer Eugen
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.)
Felten and Guilleaume Carlswerk AG
Original Assignee
Felten and Guilleaume Carlswerk AG
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 Felten and Guilleaume Carlswerk AG filed Critical Felten and Guilleaume Carlswerk AG
Application granted granted Critical
Publication of US1598452A publication Critical patent/US1598452A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • a different method is adopted for obtaining the space required for the expansion of the copper, between the copper conductor and theloading strip. In. this case before the load-.
  • ing strip is wound onto the copper line, the latter is coated with a layer of a lac which hardens uniformly, dissolves completely in certain solvents, and the thickness of which corresponds to the required space.
  • the loading strip is then wound on over the layer of lac, whereupon after the winding, .it is placed in a liquid which dissolves the lac and is then annealedin a known manner.
  • Figure 1 of the accompanying drawing illustrates a continuously loaded conductor according to the present invention.
  • a is the copper conductor,
  • b the layer of lac and 0 the loading or magnetizable strip.
  • Figure 2 illustrates the same conductor after the lac has beemdissolved bv the solvent.
  • lacs which can be used for this purpose, for instance: (1) Shellac-'colophony lac consisting of 200 grsrshellac, 150 grs. colophony, 650 grs. spirit. p
  • lacs can be completely, removed again with the solvents employed, that is to say the lac referred to under 1) can be removed by means of spirit, that under (2a) by means sitlon inside the loading strip.
  • These additions may for instance be fine, short asbestos fibres, mica powder and the like.
  • a method of n'lanufacturing uniformly loaded conductors for signalling purposes consisting in coating the conductor with a layer of lac which hardens in a uniform manner, is'soluble in certain solvents and is of a suitable thickness, winding the loading strip over the conductor coated with the said layer then placing the conductor in a liquid which dissolves the lac and finally annealing the conductor and loading strip.
  • a method of manufacturing uniformly loaded conductors for signalling purposes consisting in coating the conductor with a layer or lac, comprising substances which dissolve in certain solvents and small amounts of insoluble and. incombustible substances, the lac hardening in a uniform manner and being of a suitable thickness, winding the loading strip over the conductor coated with the said layer, placing the conductor in a liquid which dissolves the soluble parts of the lac, the other substances remaining between the loading strip and the conductor and finally annealing the eonductor and loading strip for the purpose set 10 forth.

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  • Manufacture Of Motors, Generators (AREA)
  • Paints Or Removers (AREA)
  • Inorganic Insulating Materials (AREA)
US50144A 1924-09-01 1925-08-13 Method of manufacturing uniformly-loaded conductors Expired - Lifetime US1598452A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF56794D DE419158C (de) 1924-09-01 1924-09-01 Verfahren zur Herstellung gleichfoermig belasteter Signalleiter

Publications (1)

Publication Number Publication Date
US1598452A true US1598452A (en) 1926-08-31

Family

ID=27740122

Family Applications (1)

Application Number Title Priority Date Filing Date
US50144A Expired - Lifetime US1598452A (en) 1924-09-01 1925-08-13 Method of manufacturing uniformly-loaded conductors

Country Status (6)

Country Link
US (1) US1598452A (fr)
AT (1) AT103411B (fr)
DE (1) DE419158C (fr)
FR (1) FR602739A (fr)
GB (1) GB239232A (fr)
NL (1) NL15527C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705735A (en) * 1950-02-27 1955-04-05 Wolf E Mark Electrical conductors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2705735A (en) * 1950-02-27 1955-04-05 Wolf E Mark Electrical conductors

Also Published As

Publication number Publication date
DE419158C (de) 1925-09-21
AT103411B (de) 1926-05-25
FR602739A (fr) 1926-03-25
GB239232A (fr) 1925-12-24
NL15527C (fr)

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