US1863354A - Electric conductor - Google Patents

Description

June 14, 1932. E. J. SCHNEIDER E1' AL 18633 54 Y ELECTRIC CONDUCTOR @riginal FiledAJuiy 7, 1926 L-V n w ATroR Y Patented June 14, 41932 l UNITED STATES PATENTA OFFICE EDWIN J'. OF JAMAICA, AND MERBITT B. BBADT, OF BROOKLYN, NEW YORK, ASSIGNOBS, BY MESNE ASSIGNMENTS, TO `Glfllilfiltrl'.. CABLE CORPORATION, OF NEW YORK, NQY., ACORPORATION NEW JERSEY j ELEc'rnIc coNnUc'roa Applieatioli led July) 7, 1926, Serial 110.129,896. Renewedflebruarf 10, 1932.

. This invention relates to electric conductors or cables commonly used in the wiring upon the other in opposite directions, and one of said wound ac ets involving a weave structure to give strength and durability to the finished product; a further object being to provide enclosures composed of such material as to give the greatest possible strength to the finished conductor and also permitting of the required liexibility therein without subjecting said coverings to breakage or rupture; a further lobject being to provide an outer casing or jacket preferably composed of braided fabric, two ofthe conductors or wires with the coverings thereon being included in said jacket, and means, being provided to `ill the crevices between the separate conductors; a still further object being to provide a wrapped covering composed of a plurality of strands of twisted'paper, said strands being wound upon the conductor in the formationl thereof in multiple, to facilitate quick production and further to provide greater exibility in the finished product; a furtherr -object being to treat the several casings or jackets employed to render the same waterproof by saturatng or otherwise applyingV tion, eficient in use, and which is constructed as hereinafter described and claimed.

in is an improvement on that shown andI described in a prior application filed by us, Feb- 'ruary'15, 1926, and bearing Serial No. 88,228,

and is fully disclosed in the'following speciiication, of which'the accompanying drawin forms a part, in which the separate parts o The invention described and claimed here-V our improvement are desi nated by suitable reference characters in eac of the views, and in which Fig. 1 is a detailvview of a part of an electric conductor employing two metallic conductors contained within a single casing, illustrating the several protective casings or jackets employed'thereon.

Fig. 2 is a transverse section on the line 2 2 of Fig. l.

Fig. 3 shows detail view of a paper strip employed in the structure shown in Fi l in extended, partially folded and fully olded positions; and,

Fig. 4 is aview similar to Fig. 1 but showing a modification.

' In Figs. 1 and 2, 5 represents two metallic conductors each of which is provided with casings or jackets ofsimilar construction and directly upon the rubber jacket 6, with a p urality of bindingl strands 9 interwoven therewith and extending longitudinally of the conductor 5, the strands 9 consisting of cords, twisted paper strands or like material, and

beingso arranged that each strand passes first over one of the strips 8a and then beneathadjacent strips 8b as seen in Fig. 1 of the drawing. Adjacent strands 9 alternately pass over and under each of the 'strips 4 lSa-Sb.

In the constructionfshown, each strand 9 is composed of a plurality of segments, but

a single strand may be employed, and it will` also be understood that the showing in the i p drawing is exaggeratedas to size and dimensions for the the invention.

Wound upon the casing or jacket 7 is another casin or jacket 10 which in the construction s own, comprises a plurality of purpose of clearly' illustrating strands 1l` arranged in multiple and parallel relation, and collectively and directly wound upon the casing or jacket 7, in a direcpletion of a conductor composed of parallel metallic conductors 5, each of which are jacketed as above described, the same are enclosed in a casing or jacket 12 preferably of braided fabric and treated with a waterproof and reproof composition, and the crevices between the adjacent wrapped conductors are lled in by iiller `cords 13 to form a neat and finished product, said cords being seen in Figs. 1 and 2 of. the drawing. It will be understood that our invention is not limited to the use of two conductors, as a single conduct-or may be constructed and enclosed in a braided jacket as will be apparent.

In Fig. 3 of the drawing, we have shown three views of a part of one of the strips 8 to indicate the manner of its construction, the strip being comparatively wide and folded upon three lines m2 and w3 to produce in :the resulting product, a -paper strip of fourply thickness as seen at y in Fig. 3 of the drawing, the first fold in the formation of the strip being shown at y2 wherein the sides of the sheet are folded inwardly on the lines w-3, and the last fold being on the line m2 Y to bring 'the two folded sides adjacent.A A

strip of this kind will be strong and durable, and will provide a very desirable casing or jacket for enclosing the rubber casing or jacket 6, the strips 8 being reinforced and strengthened by the strands 9 interwoven therewith, and by extending said strands longitudinally of the conductor, great strength and durability is roduced and yet suiicient flexibility maintained to suit the requirements.

In Fig. 4 of the drawing, a slight modification is shown, wherein a casing or jacket 14 is substituted for the casing or jacket 7 and instead of being composed of strips of paper 8 as in Fig. 1 of the drawing, the same is composed of two strand-like bodies 15, each composed of a yplurality of strands 16 of twisted paper or anyother desired material arranged in parallel relation and collectively and spirally Wound upon the rubber jacket 6 with fibrous strands 17 interwoven with the separate bodies 15a and 155 in the same manner as the weaving of the strands 9 with the strips 8a and 8b.

With the form. of construction shown in resiente Fig. d, a casing or acket ,18 similar in all respects tothe casin or jacket 10is also employed, but woundg in an opposite direction to the winding of the bodies 15. Theseparate conductors are enclosed in a casing or jacket 19 similar to the casing or acket 12, it being lunderstood that the metallic conductors 5a and the rubber insulation or jacket 6a are the same as the conductor 5 and jacket 6 as seen in Fig. 1 of the drawing.

lt will be understood that the separate coverings or jackets employed in the structure shown'in Fig. 4 may be treated with -the waterproof and iire'proof composition in the same manner as in the `construction of the conductor shown in Figs. land 2. By constructing the bodies-15 of separate strands 16 instead of a flat paper sheet, we provide a greater flexibility to the resulting product, and yet maintain a practical and strong and durable construction, which by virtue of the increased Hexibility will notreadily rupture or break.

ln the construction shown in Fig. 4, it will be understood that the longitudinal strands 17 are interwoven with the collective multiple strand bodies, collectively wound upon the rubber jacket 6. It will also be understood that by employing amultiple strand body in both or one of the protector casings and in the use of comparatively small strands' such as twisted paper, the pitch of the windings of the separate strands in each multiple body is comparatively great, thus rendering the resulting product or conductor very flexible. By virtue of the comparatively small .ly

radius of each strand, the possibility of opening the protector casing or casings is prac- -tically obviated. In addition, said strands give great strength and durability to the conductor. The longitudinal strands of the woven protector casln in addition to reinforcing said casing, a so reinforces the wire or conductor 5, especially when subjected to longitudinal stress or pull.

While we have shown and described certain details of construction for carrying our invention into e'ect, it will be understood that we are not necessarily limited to the specic structural details herein shown and described, and various changes therein and modifications thereof may be made-within the scope of the appended claims without departing from the spirit of our invention or sacrificing its advantages.

Having fully described our invention, what we claim as new and desire to secure by Let- 1. An article of manufacture, comprising in combination with a metal electric conductor, a body of insulating material surrounding said conductor, a protector covering mounted upon said body and comprising a multiplicity of strands arranged and wound side by side collectively and spil-ally on said body, and a plurality of strands arranged in circumferentially spaced relation and ex- V tending longitudinally of and in substantially parallel relation to the conductor and interwoven with the windings of said multiple strands extending alternately above and beneath the collective strands of the vsepararate windings.

2. An article of manufacture, comprising in combination with a metal electric conductor, a body of insulating material surrounding said conductor, a protector covering mounted upon said body .and comprising a multiplicity of strands arranged and wound side by side collectively and spirally on said body, a plurality of strands extending longitudinally ofthe conductor and interwoven with the windings of said multiple strands extending alternately above and beneath the collective strands of the separate windings, and another protector casing consisting of a multiplicity of strands arranged side by side and collectively and spirally wound directly upon the first named casing.

3. An article of manufacture, comprising in combination with a metal electric conductor, a body of insulating material surroundving said conductor, a protector covering mounted upon said body `and comprising a multiplicity of strands arranged and wound side by side collectivelyand spirally on said body, a plurality of strands extendinglongitudinally of the conductor and interwoven with the windings of said multiple strands extending alternately above and beneath the collective strands of the separate windings, v

another protector casing consisting of a multiplicity of strands arranged side by side and collectively and spirally wound directly upon the first named casing, and two of the conductors thus formed being enclosed in a braided casing, and all of said casings being treated to render the same moisture and fire proof.

4. An article of manufacture comprising a metal conductor, a body of insulating material encircling said conductor, a Woven casing on said body and consisting of spirally wound strips, and longitudinal strands arranged in substantially parallel and circumferentially spaced relation to said conductor and interwoven with said strips; another protector casing comprising a plurality of strands arranged in parallel relation and collectively and spirally wound directly on the Woven casing.

5. An article of manufacture comprising a metal conductor, a body of insulating material encircling said conductor, a woven casing on saidfbody and consisting ofvspirally wound strips and longitudinal strands interwoven with 'said strips, another protector Vcasing comprising a plurality of strands arranged in parallel relation and collectively and spirally Wound directly on thewoven casing in a direction opposite to that of the winding'of the strips of the first named easing, and a braided casing mounted upon the being treated by a Water and fire proof com' pound.

7. An article of manufacture of the class described comprising electric conductors, each contained in a body of insulating material, 'a woven protective casing mounted on each of said bodies, another casing spirally wound on each of the rst named casings, the inner casings comprising longitudinal strands arranged in-substantially parallel and circumferentially spaced relation to said conductors and interwoven with 'spirally arranged strips, and the outer casings being composed of a plurality of paper strands arranged side by side and lwound in multiple directly upon the vfirst named casings in a direction opposite to that of the spirally arranged strips of the inner casings. O

8. An articleof manufacture of the class described comprising electric conductors, each contained in a body of insulating material, a Woven protective casing mounted on each of said bodies, another casing spirally wound `on each ofthe first named casings, the inner casings comprising longitudinal strands arranged in substantially. parallel and circumferentially spaced relation to said conductors and yinterwoven with spirally arranged strips, the outer casings being composed of a plurality of paper strands arranged side by side and wound in multiple directly upon the first named casings in a direction opposite to that of the' spirally arranged strips of the inner casings, and both of said conductors thus formed being enclosed in a braided casing or jacket, and all of said casings being treated to render the same fire and moisture proof.

\ 9.` An article of manufacture comprising in combination with a metal electric conductor having a body of insulating material e thereon, 'a protector covering forming a casing for said insulated conductor and comwound strands extending alternately above and beneathsaid strands.

10. An article of manufacture' comprising, in combination, a metallic conductor, a body of flexible plastic insulating material surrounding the same, a braided jackettiple wrapping over said braided jacket and vlill a covering over the Whole provided with a protective compound.

12. An article of `manufacture comprising, in combination, a conductor, a body of flexible insulating compound surrounding said conductor, a braided jacket mounted directly upon said compound, wherein longitudinal lstrands positioned. in circumferen- .tially spaced relation are interwoven with a multiple wrapping of fibrous material, anda multiple strand wrapping surrounding said braided jacket.

13. A non-metallic sheathed conductor comprising, in combination, a metallic conductor, a sheath of plastic insulating compound surrounding said metallic conductor, a braided jacket mounted directly upon said sheath and formed of paper elements interwoven with fibrous elements, a paper wrapping over said' braided jacket and mounted directly thereon, an outer fabric jacket sur-l rounding said paper wrapping, and a fireand moisture-proofing compound applied to til) said outer jacket.

14. An article of manufacture comprising in combination a metallic electric conductor, a body of insulating material surrounding said conductor, a protector Vcovering comprising flat strip fibrous material wound upon said body of insulating material in pairs and arranged in edge vto edge relation, and relatively small fibrous strands extending longitudinally oftheconductor and inof said conductors and composed of strip material wound in pairs with the separate tervvoven with the strips of said protector covering. i

15. An article of manufacture of the class described comprising electric conductors, cach contained in a body of insulating inaterial, a protector casing on the body of each strips in an edge to edge relation, another protector casing composed of strip material 5 Wound in multiple directly uponthe rst petasse named casing, the conductors thus formed .beingl placed in parallel relation, a casing or jacket encircling both of said conductors,

land a plurality of fibrous strands spaced circumferentially and extending longitudinally of each conductor and interwoven with the strip material of one of the casings thereof.

16. An article of manufacture comprising a metal conductor, a body of insulating material encircling said conductor, a flexible casing formed from flat strips of paper wound in multiple upon said body and forming a protector therefor, another flexible casing composed ofstrips-of paper wound in multiple directly upon the first named casing, Y

and a plurality of relatively small strands interwoven with the strips of one of said casings and extendingin substantially parallel relation to said conductor.

17. An article of manufacture comprising, in combination, an electrical conductor, and insulating means therefor, comprising a covering of plastic insulating material, a pair y of paper wrappings wound directly one upon the other over said plastic insulating material, one of said paper Wrappings having re1- atively small reinforcing strands interwoven therewith, and a protective jacket for said wrappings.

18. An article of m-anufacture of the class described comprising a plurality of electric conductors, each of which is contained in a body of'insulating material, a protector cas- L ing on the body of each of said conductors and composed ,of strip material wound in multiple with the separate strips in edge to,

edge relation, another protector casing composed of a multiple wrapping positioned directly upon the first-named casing, a casing or jacket encircling both of said conductors,

and a plurality of spaced fibrous strands exv ltending substantially longitudinally of at least one of said conductors and interwoven with the material of one of said casings.

19. An article of manufacture comprising an electric con-ductor, a body of insulating material surrounding said conductor, a flex.

ible casing Aformed from fiat strips of insulating material wound in multiple upon said body andforming a protector therefor, another flexible .casing composed of strips of insulating material wound in multiple di;

rectly upon the first'named casing, relatively small fibrous strands interbraided with the strips of one of said casings, and an outer fabric protective covering enclosing the insulated andencased conductor. lin testimony that we claim the foregoing as our invention we havesigned our names this 28th day. of June, 1926.

. EDWN J. SCHNEllDlER. MERRITT B. BRADT. f

cnkrirlarl: or coRREcrioN.

Pamit No. 1, 863,354.A June' 14, im.

EDWIN J. scuNEmEn-m al..

lt is hereby certified that error eppeiars in the orinteti speifiationof the..

:ihove numberedA patent requirinlcorrection' as follows: Page 1,.lin`e 76, after' ."hevy'v' insert the wordebody of a flexible plastic insulating compoimd 6V auch as rubber. At 7,v we have.. shown a caeingor;j and that the said Lettere, Patent should be reed with this correction therein that the samey may -conform to the4 [record of the case-inthe Patent (mice.

and atentan-siii gray rammen A. D. wsu.-n

(Seal) Y ctin Commissioner of Patents.Y

@Mmmm 0F connecuom, Patent No. Lamm. me 114-, am.'

EDWIN SCHNEIDERM it s Vhereby certified @mi error appears in the printe speeifcatiouo the..

gbove .numbered ps tent requrngeofrection as oows: Page Trl-,'lne 76' after' "hevy" insert the words boy @i a flexible paste insulating compound 6 auch as rubber. At 7,- we have: shown a eauingm';j andv that the said Letterlsjatem shoud be read with this eireetion therein tha; the fe, may Aconform to the. record of the case -iu -the Patent ffiee.

ma sealed mam' guy ofsepember, A; D. my

L M J. Moore,"

e cnxmicim 40i coRnEc'uoN. mmN.1,s63,3s4., n l 'mem tmf l Emma J. scumnnnlm 4L.

lt is hereby certified tint error appears in the nrinted Vpee-ifieat'ionotthe.

altove numbered. patentrequrinlnorrecton as follows: Page l, line 76,A after- ,"hevy'f insert the wordebody of a flexible lplastii: insulating compound 6 auch as rubber. At 7,- we have. shown a ensingor;J and that tine said Letters, Patent -should be read with this ciiection therein that the sameI 'may contorni to the.

' record of un v,ine-m-:ne um: om.

d and man tyefdsepmr, y A; D. 1932..

j; @uw etinf Coninission'er of Pgtent|.

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