US270438A - jacques - Google Patents

Description

(No Model.)

W. W. JACQUES.

ELECTRIC CABLE.

Patented Ja.11.9', 1883.

Malaya/1,

N. PETERS. mmwmimgnpmr. wasmnpmn. n.c.

UNITED STATES PATENT OEETCE.

WILLIAM lV. JACQUES, OF BOSTON, MASSAOHUSE'IVS, ASSIGNOR 'IO THE AMERICAN BELL TELEPHONE COMPANY, OF SAME PLACE.

ELECTRICf CABLE.

SPECIFICATION forming part of Letters Patent No. 270,438, dated January 9, 1853.

Application led September Q4, 15181. (No model.)

To all'irhom Iit'mctg/ concer/1L: Alyso constructing a cable inductional dis Be it known that I, WM. W. JACQUES, of turbances are totally eliminated, and each sep- Boston, in the county ot' Suffolk and State of arate conductor is maintained free from inter- Massachusetts, haveinvented certain Improveference from its neighboring conductors.

ments in Electric Gables, of which the follow- The drawings show cross-sections of' three D5 ing is a specification. different l'orms ot' cable embodying my inven- My invention relates to electric cables of tion. that class in which several independent con- Figure l shows an armored cable comprisductorsinsulatedfrom oneanotherareincluded ing seven insulated conducting-wires embedin a singlel cable, which may or may not be arded in and separated from one another by a 6o mored. Its objects are, irst, the more effectual mass or a conglomeration ot' layers ot' sponge. neutralization or prevention of induced ordis- Fig. 2 shows a similar cable in which the turbing electrical currents, and, second, to space between the armor and the cable is left provide a means for keepin g. the insulated vacant and the several conductors are sepaconductors of a subaqueous cable separate rated by large wires laid in between each con- 6 from one another, which shall at the same time ductcr and its nearest neighboring conductor. allow water to circulate freely between and Fig. 3 shows an alternative form of construcaround the conductors separated when the cation wherein the diterei'it conductors are mainble is laid. tained at a suitable distance apart by disks zo In a former invention, for which I'have obplaced at short4 intervals, In each figure it 7o tained Letters Patent No. 239,06, and dated will be observed that the same conception is March 29, 1881, I have shown and described a illustrated and the same purpose is aimed at cable devised and constructed for the prevennamely, the proper separation of theinsulated tion of induction, In the cable therein deconductors by a method which shall notinter- 2f scribed insulated wires are drawn loosely into fere with the free access ot' water thereto. 75 a pipe and the interstices between the insuln the construction of' such a subaqueous lated conductors are filled with a conductingcable as shown in Fig. l, I wind each conliquid--such as salt-water-0r a mobile solid, ductor C, previously insulated by any ot" the as metallic filings. I have also stated in the well-known methods, loosely with untwisted 5o same specification that, in case the cable is to hemp, asbcstus having long ber, or I cover 8o be used under water, theinsulated conductors, each conductor with sponge or any spongy masuitably connected together, may be surroundterial, I3, il preferred, binding` these materials ed with a sheath of iron or other suitable inaon each separate conductor loosely with fine terial, arranged to allow the water to enter and wire, so that when the desired number of concompletely surround each ot' the said conductductors are laid together each shall be sepa- 85 ors, so as to prevent any inductive action of rated from the other by a mass of material one wire upon the others. which7 while possessing sufficient Asubstance My present invention consists, then, in the and solidit-yto keep the conductors apart., shall use ot' specific modes of arranging the insunot be impervious to water, but shall be sus- 40 lated conductors so that they may be kept ceptible to rapid and perfect saturation there- 9o separate from one another, andin either lling with. The cable thus formed is then preferaihe spaces or intcrstices between the conductbly covered with a protective armor ot' wire, ors so kept apart by spongy or brous mate- A, laid on in such a manner as to allow the rial which, when the cable islaid, willbe thorwater to pass freely through it for the purpose oughly permeated bythe water, and will allow .of permeating thc spongy material hereinbe- 95 the insulated conductors to be completely surfore described. rounded-by the said water, or in leaving the The cable-section illustrated by Fig. 2 difinterstices or spaces unfilled and permitting 'fers from the preceding, in that no material ot' the water to circulate i'reelyand without any a porous or spongy nature is employed to sur- 5o` mediatorial appliance around the conductors. round the conductors. In this case the con- 10o ductors C, insulated as before, are separated by large wires E E, laid in between them, which hold them apart so that they can be completely surrounded by water I) as soon as submersion takes place. These wires mayall be straight, or may be arranged spirallyabout the insulated conductors. Other large Wires may be arranged between the insulated conductors and the armor A, and if found con! venient the Whole may be eabled together. It will be seen that the water D lls up all the intermediate spaces, flowing in between the interstices ot' the armor A. Another method is to arrangeaseries ot' pierced disks, F, Figz, at short distaueesapart, and run the insulated conductors through them. This, whileholding` the conductors together, serves also to maintain them at the proper distance from one another.

I may in any ot the hereinbefore-deseribed methods of construction, after bunching the severalconducting-wireslooselytogetl1er,leave them without other protection, or armor them with galvanized wire or other suitable material, or draw them into pipes. If I employ pipes, they must be perforated, so that the water may be freely admitted.

I claim as ot' my inventionl. Au electric cable comprising; an` outer covering or armor having' openings through which Water eau Free-ly pass, aud a series oi' insulated conductors separated and held apart throughout their entire length by means such as described, which will permit a free circulation ofthe Water around and between the several conductors, substantially as set l'orth.

2. In an electric cable, a series ot' independ ent conductors insulated with Water-proof material, said conductors beine: separated and held apart by means of a filling;` ot' spongy or fibrous material or the specilied equivalent therefor, substantially as described.

In testimony whereof' I have signed my name to this specitieatiomin the presence ol" two subscribing witnesses, this 20th day ot Septem ber, 1881.

lV. W. JACQUES.

Witnesses:

GEO. WILLIS; PIERCE, J. H. CHEEVER.

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