US1631774A - Manufacture of telegraph and telephone cables - Google Patents

Manufacture of telegraph and telephone cables Download PDF

Info

Publication number
US1631774A
US1631774A US293A US29325A US1631774A US 1631774 A US1631774 A US 1631774A US 293 A US293 A US 293A US 29325 A US29325 A US 29325A US 1631774 A US1631774 A US 1631774A
Authority
US
United States
Prior art keywords
conductor
groove
telegraph
manufacture
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
US293A
Other languages
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 US1631774A publication Critical patent/US1631774A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

  • Ihis invention relates to the manufacture of telegraph and telephone cablesof the type in which a conductor is surrounded by a spiral of wire or strip of magnetic material.
  • the conductor may be stretched by ceremonies over a pair of cones which are mountd on parallel axes so that they can be ro- )rovided with *a number of circular grooves. Tie conductor surrounded the loading material is passed partly around a groove of one cone, next round a groove of slightly larger diameter on the other cone, thence round a groove of still larger diameter on the first cone, and so on, until it is finally wound oft.
  • the grooves on one cone are all larger in diameter than the corresponding grooves on the other cone and it will be i understood that each time that the conductor is passed from one groove to another of larger diameter it will be stretched by an amount depending on the diiference in the diameters of the two grooves and thus any desired elongation may be obtained and therefore a corresponding decrease in diameter of the conductor and a corresponding slackening of the magnetic wire or strip.
  • Figure 1 is an elevation and Figure 2 a plan of an apparatus in which the conductor is stretched.
  • Figure t is a. similar section after the able has been stretched and the loading material is loosened.
  • Figure 5 is a view after the annealing when the loading material substantially contacts with the conductor due to its shrinkage.
  • a and Z are two cones mounted on parallel shafts 0 and (Z on which are intermeshing gears e and On the shaft 0 is a pulley 9 running round which is a driving belt h. hen the pulley g and shaft 0 are turned the gear 0 al o turns causing the gear 7 to turn the shaft cl in an opposite direction.
  • the conductor 2' surrounded by the loading material passes from a reel upon which it has been wound, round a cylindrical part k fixed to the end of the cone a, thence partial- 1y round a groove Z on the cone 6 of larger diameter than the cylindrical part is, thence to a groove m on the cone a of larger diameter than the groove Z, thence partially round another groove on of larger diameter than groove m, then partially round a groove 0 of larger diameter than groove n, thence partially round another groove 29 of larger diameter than the groove 0 and thence partially round another groove 9 of larger diameter than the groove p, and finally round a groove rof larger diameter than the groove 9 when it passes to a pulley s and thence to a reel t, upon which it is wound, the reel 23 being frictionally driven by means of a slipping belt a from the shaft d. It will be understood that each time the conductor 2' passes from the cylindrical part is or one of the grooves on the other cone it will be stretched an amount depending on the difference in the diameter
  • a process for the manufacture of telegraph and telephone conductors which comprises first laying the loading material around the conductor, then stretching the conductor by passing the cable around curves of increasing diameters in parallel cones, and finally annealing the loaded conductor.

Landscapes

  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Wire Processing (AREA)
US293A 1924-05-06 1925-01-02 Manufacture of telegraph and telephone cables Expired - Lifetime US1631774A (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
US1631774A true US1631774A (en) 1927-06-07

Family

ID=9981464

Family Applications (2)

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

Family Applications After (1)

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

Country Status (4)

Country Link
US (2) US1631774A (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)
US1760012A (en) 1930-05-27
GB237978A (en) 1925-08-06
FR590822A (fr) 1925-06-23

Similar Documents

Publication Publication Date Title
US3090190A (en) Elastic cables
US2869316A (en) Twisted conductors and cables and method and apparatus for making the same
KR860009444A (ko) 고장력 전송케이블 및 이의 제조방법
US1990514A (en) Flexible shafting and method of producing same
US2920351A (en) Method of making spring cords
GB535397A (en) Extensible rectractile electric cord and method and apparatus for making it
US1631774A (en) Manufacture of telegraph and telephone cables
US2013211A (en) Process for the production of extensible electric conductors
US3367097A (en) Reverse twist strander, stranding method, and strand
US1393750A (en) Sector-cable
US2413715A (en) Retractile cord
US2053645A (en) Strand handling apparatus
US3659408A (en) Stranding apparatus
US2609417A (en) Retractile cord and method of making it
US2081427A (en) Electric communication cable
US2731069A (en) Device for compounding stranded conductors
US3271508A (en) Communication cable
US1988586A (en) Quad stranding machine
US2704782A (en) Retractile cords and methods of making the same
US3369355A (en) Stranding apparatus and method and cable made thereby
US4590754A (en) Forming cable core units
US3286451A (en) Strander
US2319827A (en) Means for manufacturing wire rope and the like
US2920348A (en) Apparatus for forming spring cords
US2114496A (en) Method of and apparatus for combining strands