US999414A - High-tension strain-insulator. - Google Patents

Description

L. STEINBBRGER. A man mzsron sammsum'ro.

999,414. Patented Aug. 1, 1911.

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il "i To all vwhom it muy concern:

.or of porcelain,

certain internatparts of the insulator are UNITED snurushrrtfrnnr OFFICE.A

HIGH-Transmit sTnA'INJNsULAToR.

Specification of Letters Patent. Patented Aug, 1 1 911 filed lhbruary 18, 191D. Serial No. 544,534.

' Application subjected. XII. To provide strain plates or members made of a rigid or a yielding material, as desired. XIII. To provide the insulators with improved means for con meeting them together. XIV. To provide the insulator with a partition for pose of sustainingl the stress when `thefiinsu lutor is under mechanical tension. XV. To prmifle the insulator with a portion to ibo" subjected to compression when it is under mechanical tension, Y l-lefexencc is to be had to the accompany.- ing' drawings forming a part of this speci- Firutun in which similar characters of ref erenrc indicate corresponding Aparte in all the figures.

Figure l is a iertical section on the line 3--3' of Fig. 3. lookingT in the direction of the arrow and showing one of the units with a detachable eye whereby it. may be suspended; Fig. 2 a section on the line IM-l of Fig. 3, looking in the direction of the arrow; Fig. 3 is a horizontal'section-on the line 5-5 ofsFig. 1, looking in the direction of the arrow; Fig. 4 is a fragmentary section on the line 6-6 of Fig, 1, looking in the direction of the arrow; 'and Fig. 5 is a sectional View of the body portion of the insulator provided with its hood, the strain members not being yet connected with it.

The body portion ofthe insulator is shown at18, and is provided with a hood 9 and with two recesses 10 and l1. The body portion 8 is further provided with a paii of holes 12 and another pai holes being straight and extending through to the recesses.

At 14, are two'metallic plates provided respectively with narrow middle portions 141,15*. These plates are disposed i-n the bottoms of the res ective .recesses 10,111, which are separat by a partition 16, integral with the body portion 8. The'parlle it. known th a ,ritizen of the `United den-t ot.' the city ot New York, borough oi' Brooklyn, in the county' of Kings and State of New York,` have invented a new and Improved High-l`ension Straindnsulator,V

a full, clear, and

ut I, Louis Sfrrnnnouomi,

States, and a resi- My invention relates to high tension strain insulators for general use, where currents of high potential are employed, the being pecially well adapted for use in Wireless telegraphy and.telephony, my special pui pose being to provide a number of novel constructional features in order to improve the general etliciency of the insulator, and l to enable me to make it of an iifisulating;r material formed under pressure or molded, glass or such like material, and to employ tension members of a rigid or of a flexible character. as may he desired. More particularly stated, my improved high tension strain insulator is so constructed and arranged as to fulfil the following purposes, towit: I. To enable the insulator| to be susended by aid of tension members which may e flexible or inflexible, asdesired. II. To protect from the Weather a portion of the ody part of the insulator. III. To proriide the body part of the insulator with protecting hoods. IV. To render the tension members more readily detachable. V. To provide the insulator with recesses to be used for inserting and taking out the tension membersand to lill said recesses when desired with an insulating material separate from that of the body portion of the insulator. VI. To render the insulator 'readily attachable for use with its .general axis of suspension either vertical, horizont-al, or at any desired angle. VII. To render the terminals readily interchangea le in order to prolong the life of the insulator as a whole. VIII. To provide tition is provided with bevels 17, merging covers for the recesses and for the filling into the holes 12, and the holes through the materials used. IX.- To enable the covers plate 15 are slightly rounded, as indicated to act as braces for the tension members. in Fig. 3, to match the bevels. l X. To provide the insulator body, as far as At. 18 are tension. members integral with practicable, with' straight holes extendingr each other and together forming n substanyllirolntgh it and merging into the recesses, in tially U-shaped member. The ends 15) of order to facilitatethe connection of various this U-shaped member are threaded, as will tension members. XI. ToJ distribute to the beunderstood from Fig. 3. best' 4invantage the mechanical strains to `which the bearing plates or members and ich receivethe threaded ends with holes, w

nuts 21 aretted upon the 1 9. Revoluble the'pur- At 20 is a cap made of metal and providedthreaded ends 19 and engage Ithe cap 20. This cap is provided with a centrally-dis posed threaded boss 21% An eye 22 is pro-l vided with a threaded' socket, which lits upon the boss 21* through which connection may be made to a supporting member, conductor, or another insulators Fillin gs 23 and 24 of insulating material, separate from the body portion 8, are disposed within the openings 11, 10, so as to completely fill the same.

At 25 is a cover plate for the recess 10. Engaging this cover plate is a plate 26, having a threaded boss 27 inte ral with it through which connection may e made to a supporting member, conductor, or another insulator. Two bolts 28', serving as tension members, and provided with heads 29, eX- tend entirely through the holes 13 and also through thebearing lates 14, 15. These bolts are provided with threaded ortions 30, which are engaged by nuts 31. y turning the nuts21 and 31, any amount of initial stressmay be placed upon the tension members 18, 28, and also upon the partition 16.

In assembling the parts, the bearing plates 14, 15 are placed in osition, and the tension members extended t rough the holes 12, 13` The fillings 23, 24 are placed in position and the cal 20 is brought into en agement with the li 'ng 23, the cover p ate 25 being fitted against the filling-24. The nuts 21,

31 are next applied, so t at the tension members and parts immediately affected thereby are subjected to 'the desired amount of initial strain. This completes the insulator, as ordinarily used, it being now ready for use in any relation where a. high tension insulator may be em loyed.

When these insu ators are made of porcelain, glass or such like material, it may be desirable to use a rope or other flexible tens sion member or a partly flexible and partly infiexible tension member instead of the in- Hexible tension members 18 and28. To einploy the flexible tension member. such as a rope, it is merely threaded through the holes- 12 and 13. When desired. bearing- .lates or members made of a yielding materia maybe employed. Furthermore, it is of course immaterial whether theA U'-shaped members be in one ieee or whether the legs of the U-shapeci) necting portions.

I do not limit myself to the precise shape of any part above described and herein shown, nor in all cases to the precise :ir-

rangement of the parts relatively to cach other, nor to employing in every instance te ion members made of unyielding mate- V riale. Neither do I limit myself to the use of any particular material. I prefer, however, to use the insulating material known in commerce as electrose members be separate from the con-` `sion members havin Having thus described Imy invention, I claim as new and desire to secure by Letters Patent:

1. An insulator comprising a body ortion` having a slot-like opening exten ing thereinto from each end and having a median partition defining the inner ends of said o enings, the planes of the lengths of said s ots crossing eachother, and therev being an aperture extendin through the partition at each end of each s ot, the apertures that open from one slot passing through the material of the insulator on opposite sides of the other slot, substantial y U-shaped tension members having their connecting portions respectively lying in the bottoms of said slots'and their le extending through the openin from sai slots res ectively and out beyon the ends of the insu ator, and means connecting together the outer ends of the legs of each U-shaped member.

2. An insulator comprising a body portion having a slot-like opening extending thereinto from each end and having a median partition defining the inner ends of said openings, the planes of the lengths of said slots crossing each other, and there being an aperture extending through the partition at each end of each slot, the apertures that o'pen from one slot passing through the material of the insulator on opposite sides of the otherslot, substantially U-shaped tension members havin their connecting portions respectively lying in Vthe bottoms of said slots and-their legs extending throu h the openings from said slots respective y and out beyond the ends of the insulator, means connecting together the outer ends of the 4legs of cach U-shaped member, and a filling of insulating material in cach slot above the connecting portion that lies in the bottom thereof.

3. An insulator comprising a `body ortion having a slot-like opening exten ing thcreinto from each end and having a median partition defining the inner ends of said openings. the planes of the lengths of said slots crossing each other, and there being an a erture extending strai ht awa through e partition at each end of eae slot, the apertures that open from one` slot passing straight away through the material of the insulator at opposite sides of the other slot, and substantially U-shaped tentheir connecting portions rcspectively lying in the bottoms l'of said slots and having straight legs extending throu h the openings from said slots respective y and out beyond the ends of the.. insulator, and means connecting together the outer ends of the-legs of each l-shaped member.

4.- An insulator comprising a body prtion havin a slot-like opening exten ing thereinto rom each end and having n meiio izo

diam partition defining the inner ends of said openings, the planes of the lengths of said slots crossing each other, and there bein'g an aperture extending through the par1` titlon at each end of each slot, the apertures that open from one slot passing through the material of the insulator on opposite sides of the other slot, substantially U-shaped tension members having their connecting portions respectively lylng in the bottoms of said slots and their legs extending through the openings from said slots respectively and out beyond the ends of the insulator, and means connecting together the outer ends of the legs of each U-shaped member, said means engaging the ends of the insulator respectively.

5. An insulator comprising a body portion having a main openin extending thereinto from each end and 2having a median partition defining the inner ends of said openings, there being a pair of apertures extending through the partition from each of said first named main openings, the plane of one pair of apertures intersecting that of the other pair, the apertures that extend from the bottom of one main opening passing through the material of the insulator at opposite sides of the other main openings, and substantially U shaped tension members \having their connecting portions respectively lying in the bottoms of said main openings and their legs extending through the apertures from said main openings rcspectively and out beyond the ends of the insula'vr, and means connecting together the ou r ends ofthe legs of each U-sbaped within said body portion but insulated from `50 l each other by intervening portions of the insulator body material, and means for con necting together the extending free ends of the legs of each tension member.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOUIS STEINBERGER, Witnesses: iVAL'roN HAluusoN,

PHiLiP D. RoLLHAUs.

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