US2122118A - Submarine cable - Google Patents

Submarine cable Download PDF

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Publication number
US2122118A
US2122118A US103208A US10320836A US2122118A US 2122118 A US2122118 A US 2122118A US 103208 A US103208 A US 103208A US 10320836 A US10320836 A US 10320836A US 2122118 A US2122118 A US 2122118A
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United States
Prior art keywords
mixture
guttapercha
submarine cable
insulation
paragutta
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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
US103208A
Inventor
Studt Ernst
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.)
Norddeutsche Seekabelwerke GmbH
Original Assignee
Norddeutsche Seekabelwerke GmbH
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Filing date
Publication date
Priority claimed from US693215A external-priority patent/US2059055A/en
Application filed by Norddeutsche Seekabelwerke GmbH filed Critical Norddeutsche Seekabelwerke GmbH
Priority to US103208A priority Critical patent/US2122118A/en
Application granted granted Critical
Publication of US2122118A publication Critical patent/US2122118A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/003—Filling materials, e.g. solid or fluid insulation

Definitions

  • This invention relates to an improved joint in the insulation of submarine cables which are insulated with guttapercha or guttapercha-like materials.
  • the making of such joints in the insulation is one of the most difficult problems in the manufacture of submarine cables. While in the case of guttapercha cables the joints may be made by skilled operators by hand, it was necessary for the jointing of Paragutta cores to work out a special method and to design a special machine in order to obtain perfect adhesion of the surfaces overlapping one another, Hitherto it has not been possible to make periectly satisfactory joints in Paragutta cores by hand.
  • Paragutta as dened on page 198 of Beil System Technical Journal of April 1932, :is a mixture of rubber from which the albumen has been removed, deresinated balata and wax.
  • adhering and adhesive power of a mixture of for instance of deresinated balata with 15%'of polystyrol is so great that in all circumstances a perfectly satisfactory and watertight joint Will be formed in the case of Paragutta cores. If it should be thought necessary to increase the percentage of polystyrol in the mixture in order still further to increase the adhesive power, wax, caoutchouc or some other softening agent should be added to the mixture, as otherwise the total mixture will become too hard.
  • the invention is exemplified in the drawing attached hereto showing a conductor core surrounded by cable insulation and an outer sleeve oi thermoplastic substance.

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  • Organic Insulating Materials (AREA)
  • Paints Or Removers (AREA)

Description

Patented June 28, 1938 UNITED STATES PATENT OFFICE SUBMARINE CABLE Ernst Studt, Nordenham, Oldenburg, Germany, assignor to Norddeutsche Seekabelwerke Aktiengesellschaft, Nordenham, Oldenburg, Germany October 24, 1932 1 claim.
This forms a division of the copending application Serial No. 693,215 led October 11, 1933 for Submarine cables, now Patent No. 2,059,055, October 27, 1936.
This invention relates to an improved joint in the insulation of submarine cables which are insulated with guttapercha or guttapercha-like materials. The making of such joints in the insulation is one of the most difficult problems in the manufacture of submarine cables. While in the case of guttapercha cables the joints may be made by skilled operators by hand, it was necessary for the jointing of Paragutta cores to work out a special method and to design a special machine in order to obtain perfect adhesion of the surfaces overlapping one another, Hitherto it has not been possible to make periectly satisfactory joints in Paragutta cores by hand. Paragutta as dened on page 198 of Beil System Technical Journal of April 1932, :is a mixture of rubber from which the albumen has been removed, deresinated balata and wax.
New it has been found that a perfectly satisiaetory joint can be made in the insulation of Paragutta cores without special devices by using as the jointing material a mixture of guttepereha, balata or the like with polystyrol or other polymerization* products of aryl olefines. The
adhering and adhesive power of a mixture of for instance of deresinated balata with 15%'of polystyrol is so great that in all circumstances a perfectly satisfactory and watertight joint Will be formed in the case of Paragutta cores. If it should be thought necessary to increase the percentage of polystyrol in the mixture in order still further to increase the adhesive power, wax, caoutchouc or some other softening agent should be added to the mixture, as otherwise the total mixture will become too hard.
The employment oi the above-mentioned mixtures also provides advantages when making joints in guttapercha cores, as these mixtures are easier to handle than guttapercha alone.
The invention is exemplified in the drawing attached hereto showing a conductor core surrounded by cable insulation and an outer sleeve oi thermoplastic substance.
What I claim is:
A joint in theA insulation of cables which are insulated by a thermoplastic substance consisting of a mixture of albumin free rubber, deresinated balata and wax, in which the jointing material for the insulation consists of a mixture of guttapercha with polystyrol.
ERNST STUDT.
US103208A 1933-10-11 1936-09-29 Submarine cable Expired - Lifetime US2122118A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US103208A US2122118A (en) 1933-10-11 1936-09-29 Submarine cable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US693215A US2059055A (en) 1932-10-24 1933-10-11 Submarine cable
US103208A US2122118A (en) 1933-10-11 1936-09-29 Submarine cable

Publications (1)

Publication Number Publication Date
US2122118A true US2122118A (en) 1938-06-28

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US103208A Expired - Lifetime US2122118A (en) 1933-10-11 1936-09-29 Submarine cable

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471465A (en) * 1946-01-29 1949-05-31 Int Standard Electric Corp Repeater for submarine electric cables
US2645819A (en) * 1948-05-11 1953-07-21 Comp Generale Electricite Method of making graduated connecting links for diversely insulated electric cables
US2716623A (en) * 1951-03-13 1955-08-30 Tator Kenneth Method of insulating a short section of an electric cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471465A (en) * 1946-01-29 1949-05-31 Int Standard Electric Corp Repeater for submarine electric cables
US2645819A (en) * 1948-05-11 1953-07-21 Comp Generale Electricite Method of making graduated connecting links for diversely insulated electric cables
US2716623A (en) * 1951-03-13 1955-08-30 Tator Kenneth Method of insulating a short section of an electric cable

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