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Publication numberUS1006040 A
Publication typeGrant
Publication dateOct 17, 1911
Filing dateJun 13, 1911
Priority dateJun 13, 1911
Publication numberUS 1006040 A, US 1006040A, US-A-1006040, US1006040 A, US1006040A
InventorsJulius Alsberg
Original AssigneeJulius Alsberg
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1006040 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


a, 1001. nnnwnn nun 1a. 1011.

Patented Oct. 17, 1911.

3 SHEETS-IKE l. i 2L "1% APPLIOLTIDI FILED JULY 2 5a INVENTOR Jalzm" zih'e y BY 'gmafi.


APPLIOATIOI rum) JULY 29, 1901. nnnwnn mm: 1a. 1911.

Patented Oct. 17, 1911.



.iumus sesame. or new roan, n. Y.


Specification of Letters Patent. Patented Oct, 17, 1911.

Application fled July 20, 1807, Serial No. 386,141. Renewed June 18. 1911. Serial No. 832,961.

Toallwhom e'tmcy concern:

Be it known that I, J ULrUs ALSBERG, a citizen of the United States, residing at the city of New York, borough of Manhattan, in the county and State New York, have invented certaiunew and useful Improvements in Insulators, of which the followin is a, full, clear, and exact specification.

I invention relates to means for suportmg electrical conductors, and the same ms for its object more particularly to provide a simple, eflicient and durable insulating support for high-potential electric cur rents.

Further, said invention has for its object 'to providean insulator which will not be caused to expand or shrink materially owing to changes in temperature.

Further, said invention has for its 01 ljert to provide an insulator composed of .lhe fewest possible parts, and presenting the smallest possible surface area.

Further; said invention has for its object to provide an insulator consisting essentially of aflexible material of great tensile strength and capable of withstanding a high d of heat. 1

urther, said invention has for its ob'leqi to provide an insulator consisting of individual sections or units which may be read-,

ily connected together to form a single structure.

Further, said invention has for its object provide a flexible insulator which may be'easily and conveniently covered or protected when necessary or desired.

To the attainment of the aforesaid obj ects and ends my. invention consists in the novol details of construction, and in the combination, connection anda-rrangem'ent of parts hereinafterm'ore fully des'cribed and then.

pointed out in the claims.

In the accompanying drawings part of this-s 'fication, wherein like numerals of re erence indicate like parts, Figure 1 is a side view illustrating one form of insulator constructed according to, and embodying my said invention, the same being shown applied to a support, and carrying an electrical conductor; Fig. 2 is a sim ilar view showing a modification in the means for-securing the insulator to its support; Fig. 8 is a side view, partly in section, showin a protected form of insulator- Fig. 4 is 'a side view showing a )luralit o protected units connected toge er to arm forming a single structure; Fig. 5 is a side view illustratin a bifilar type of protected insulator; big. 6 is an enlarged side view, partly in section, illustratin the construction shown at Fig. 1, and 1g. 7 is a view showing theinsulator applied to a supporting clamp suspended between two poles or en ports.

n said drawings, referring particularly to Figs. 1 and 6, 10 designates an insulator comprising a member formed of a flexible, inelastic, non-absorbent, non-conducting material capable of withstandin great heat, and not liable to become afl'ecte by changes in temperature or atmosphere." For that purpose'a vitreous substance such as spun glass, or any other substance possessing the clun-artcristics or qualities above mentioned may be employed. In the present embodiment of my invention I have shown. and des rihed the ins'ul'ating'member as composed of a mass of is un lass threads or filaments woven or brai ed fi to-strands 11, 11, and a plurality of such strands then woven or twisted together in the form of ar0 e or or. loo or cye 13 in which is disposed a metal thim Ie 1d. The upper end of said cable 12 is frayed out,,an'd said frayed end disposed within the conical tubular portion of a socket 15, and embedded in a mass of cement 16 therein. At the up er end of said socket 15 "are parallel upwar ly projecting lugs 17 17 having aperturesthelem, and

18 denotes a bolt secured in a horizontal su port or arm 19 by a nut 20 workin upon t e upper threaded end of said bolt. he bolt 18 is provided adjacent to its lower end with a flange 21, and below said flange with an eye 22 arranged intermediate the lugs 17 17 of the socket 15, and pivotally secured thereto by a bolt 23.

-24 denotes an attaching device which may be of any desired form or type, and is here shown as a clamp consisting of two parts or members 25 26 provided in their opposing surfaces with. registerin lon itudiual grooves to receive an electrica com actor 27 which is clamped therein by a screw or lmlt 28 passing through said clamp parts or mumthe-insulating member 80 is constructed shown at Fi s. 1 and 6 exec vided at bot its upper and loops 31, 32 respreotively, I thimbles 31" 32. he loop 81 'at'the u end is secured to the eye 33 of a be secured in a sup ort 85 andthe loop .82 the lower end the insulating member secuggd to a clamp 36 carrying a con tor ower ends wi t that it is proprovided with duc- In the modification shown at Fig. 2} the member 40 is constructed therewith may be rigidl secured to a support Upon the underside of the protector 43 an eye 48 in whiclr is secured the app loo ed end of the insulating member 40.

protectors 'of the type illustrated at Fig. united into a single structure. this struction the upper protector 50 isprovid 5 at its top with an eye'51 whereby said 8 51 secured in a rigid sup lating member 52 however Po ing a clamp at its lower end eye 53 on the upper sid t'ector '54, and a second 65 secured at its upper the under side of said hood 54, and pro 'dednit its lower end in a clam 67.

0 having 60 ne'er its periphery are as and carries at its lower end:

e conducprobe made either of insulatany other material as deer surface be t M which secured e and at its portion and anut 46 by means of which the protector t Fig. 4 are shown two insulators and r0 teeter may be suspended from an eye bolt rt. The ins instead of car 4 is secured to an. e of-a second proinsulating member and to an eye 56 on second protector cr th for At g. 5 is, shown a bifilar insulator dc lateral or side swaying f comprises a eubolt 61 at its ooped ends of insulating as or supports 74 4..

secured the uglier members 64, constructed as heretofore d3;

en to an eye 65 .of horizontal 72 F2 having eir other endsseoured toe ebolts787 onthepol'es.

out is:

of sections, each com .silicious material com and a section of pl abl plurali what Having thus my invention, P t

I claim and desire to secure by Letters 1. An insulator consisting of strands composed of silicious material, substantially as s 2. An insulator consistin of a plurality 09's of strands of iried to.a unitary structure, substantially as spec1fied.-.

3. An insulator consisting otacable composed of strands of silicious materiahand means f or' 'rotecting the samefs" hstantially as specifi fw- 4. An -insulator donsistiiigof strands composed of a silicon compound, substantially as specified.

5. An insulator comprising a cable posed of vitreous filaments, substantially as.


6. An insulator comprising a cable com filaments and means'for substantially as speciosed of vitreous prgtecting said cable,

7..An insulator composed of spun glass,

substantially. as s 8. An insulator composed of spun glass, and means for rotectiiig the same, su tantially as .s r

9. An insulator consisting ofa cable composed of spun lass, and'means tecting the sam substantially' as- 10. An insulator-composed vitreous mater substant al asspecified.

lLAn insula r compose of strands of vitreous threads, and a plurality of said strands together into a unitarystructure, substantially as specified.

12. An insulator comprising a means for sup rting the same and a section of pliable, silicious material suspended from said hood and provided a conductor, substantially as SPBGl-fi I 13. An insulator comprising a hood, means for securin the same to-a support,

non-condu terial secured at one" totheunder si e of said hood, and providedatits other end with means for sup rting a conductor, substantially as L 14. An insulator comprising a ,cirmlar ho meansfornclmq I the'sanie'toasu po t zan insulatingmeinr consisti'o a t ofsection's' each of of strands. of

said mom i uppzr end to mid hoodyand provided I per end with an attaching device, as


plurah a r comprising pzovided with means-for secunng the a cup an a ty of stra ds purality of separate filatwisted hood,

liable, non-conduct.

secured at each of strands ot ioo with means ments of spun glass, said insulating member being secured at its upper end to said hood, and provided at its lower end with a clamping device, substantially as specified.

16. An insulator comprising a circular hood of insulating material, provided with means for securin" the same to a support, an insulatin member consisting of a pluralitg' of strum 3 each composed of a plurality 0 separate filaments of spun saluting member being secure at its upper end to said hood, and provided at its lower end with a clamping device, substantially as specified.

17. An insulator comprising a circular hood provided with means for securing the same to a support, a plurality of pliable, insulating members secured at their upper ends to said hood adjacent to its edges, and

lass, said 111-,

having their lower ends brought to ther and secured to a clamping device, su stantially as specified.

18. An insulator comprising a circular hood of insulating. material provided with means for sccurin the same to a su port, a plurality of pliab e, insulating mem ers secured at their upper ends to said hood adj acentto its edges, and having their lower ends brought together and secured to a clamping device, substantially as specified.

Signed at the city of New York, in the county and State of New York, this twentyseventh day of July, nineteen hundred and seven.

JULIUS ALSBERG. Witnesses Conan) A. Dm'rnmon, EARLE H. Houen'mnmc.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2441309 *Mar 31, 1945May 11, 1948Reliable Electric CoStrain insulator assembly
US2683185 *May 27, 1950Jul 6, 1954Morrison Jay WFlexible suspension for high-tension cables
US2977406 *Oct 12, 1956Mar 28, 1961Columbia Products CoStrain insulator and method of making same
US3152392 *Apr 30, 1957Oct 13, 1964British Insulated CallendersMethod of attaching fittings to rods or tubes of resin-bonded glass fiber
US4380404 *Nov 19, 1980Apr 19, 1983Hall Gaddis GClevis thimble connector
US6398447 *Jul 1, 1999Jun 4, 2002Actek Manufacturing & Engineering Co.Unitary eye bolt
DE1083372B *Dec 13, 1957Jun 15, 1960Columbia Products CoVerfahren zur Herstellung eines stabfoermigen Zugisolators
U.S. Classification174/139, 174/124.00G, 174/137.00B, 403/210, 174/177, 174/150, 174/209, 403/268, 403/79
Cooperative ClassificationH01B17/00