US1760012A - Manufacture of telegraph and telephone cables - Google Patents

Manufacture of telegraph and telephone cables Download PDF

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Publication number
US1760012A
US1760012A US294A US29425A US1760012A US 1760012 A US1760012 A US 1760012A US 294 A US294 A US 294A US 29425 A US29425 A US 29425A US 1760012 A US1760012 A US 1760012A
Authority
US
United States
Prior art keywords
conductor
manufacture
telegraph
loading
strip
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
US294A
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English (en)
Inventor
Smith Willoughby Statham
Shuter Alfred Dever
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
Application granted granted Critical
Publication of US1760012A publication Critical patent/US1760012A/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

  • This invention relates to the manufacture of telegraph and telephone cables of the type in which a conductor is surrounded by aspiral of wire or strip of magnetic material.
  • a conductor is surrounded by aspiral of wire or strip of magnetic material.
  • permeability in the magnetic material it has been found advantageous to anneal it after it has been wound on the conductor.
  • w that the shrinkage of the wire or strip due
  • this may be effected by mounting the reel of one conductor in a cradle rigidly attached to the rotating part of an ordinary stranding machine and .leading the loaded conductor through a lay'plate of the v is.
  • FIG. 1 is an elevation and Figure 2 a plan of an apparatus in which the:
  • loading wire or strip is partially unwound and loosened.
  • Figure 3 is a side elevation of a-portion of a loaded cable after loading and before the a loading strip has been unwound.
  • Figure l isa similar view showing a section of the cable after the loading strip has been unwound.
  • the loaded conductor B passes frointhereel A arrange a lay-piste F wand e a iuey e.
  • FIGs 3 and 4 show the loaded cable before the loading strip has been untwisted and after it has been passed throughthe machine for the purpose of unwinding the loading strip.
  • the showing in Figure 4 is, of course, exaggerated as it is not the practice to unwind to such an extent.
  • fstrip as used generically in the accompanying claims. It particularly includes wire as hereinbefore referred to and. avoids the use of an alternativeexpression in the claims.
  • Y graph and telephone conductors which comprises firstlaying the loading material in strip form around the conductor then partially unwinding said loading material and finally annealing the loaded conductor.
  • Aprocess for the manufacture of telegraph and telephone conductors which comprises first laying the loading material in strip form around the conductor, then par I tially unwinding theloading material by 1.

Landscapes

  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Wire Processing (AREA)
US294A 1924-05-06 1925-01-02 Manufacture of telegraph and telephone cables Expired - Lifetime US1760012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11180/24A GB237978A (en) 1924-05-06 1924-05-06 Improvements in the manufacture of telegraph and telephone cables

Publications (1)

Publication Number Publication Date
US1760012A true US1760012A (en) 1930-05-27

Family

ID=9981464

Family Applications (2)

Application Number Title Priority Date Filing Date
US294A Expired - Lifetime US1760012A (en) 1924-05-06 1925-01-02 Manufacture of telegraph and telephone cables
US293A Expired - Lifetime US1631774A (en) 1924-05-06 1925-01-02 Manufacture of telegraph and telephone cables

Family Applications After (1)

Application Number Title Priority Date Filing Date
US293A Expired - Lifetime US1631774A (en) 1924-05-06 1925-01-02 Manufacture of telegraph and telephone cables

Country Status (4)

Country Link
US (2) US1760012A (enrdf_load_stackoverflow)
FR (1) FR590822A (enrdf_load_stackoverflow)
GB (1) GB237978A (enrdf_load_stackoverflow)
NL (1) NL16455C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL16455C (enrdf_load_stackoverflow)
US1631774A (en) 1927-06-07
GB237978A (en) 1925-08-06
FR590822A (fr) 1925-06-23

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