US1513206A

US1513206A - Disk type insulator

Info

Publication number: US1513206A
Application number: US337631A
Authority: US
Inventors: Aalborg Christian
Original assignee: Westinghouse Electric and Manufacturing Co
Current assignee: CBS Corp
Priority date: 1919-11-13
Filing date: 1919-11-13
Publication date: 1924-10-28
Anticipated expiration: 1941-10-28

Description

Oct. 28 1924. 1,513,206

C. AALBORG 1 DISK TYPE INSULATOR Filed Nov. 13 1919 WITN SSES: n INVENTOR M @mf/1an Aal/Zofff l BY E a am Patented oct. as, 1924.

UNITED STATES CHRISTIAN ALBOR-G, OF WLKINSBURG, EENNSYLVANIA, ASSIGNOR TO WESTING- HOUSE ELECTRIC & MANUFACTURING- CCMPANY,

VANIA.

A CORPORATION OF PENNSYL- DISK TYPE INSULATOR.

Application filed November 13, 1919. Serial No. 337,631.

To all whom it 77mg' concern.'

Be it known that I, Crrnrsrmlv ."inLnonG, a citizen of the United States, ane. a resident of ilvillrinsburg, the county of A llegheny and State of Pennsylvania, have il.. ented a new and useful Improvement in Disk Type Insulators, of which the following is a specitication.

lily invention relates to insulators and particularly to strain insulators of the dislr type.

One object of my invention is to provide a device ofthe above indicated character that shall be simple and durable in construction, economical to manufacture, easy to assemble and effective in operation.

Another object of ny invention is to provide a strain insulator that shall be so formed as to provide a relatively great surface-creepage distance.

Another object of my invention is to pro vide a strain insulator of the dislr type that -all permit the ,use of rigid n terminal m in co-operation t 25 eliminating some of t1 ne dn'ticulties attendo ing the use of flexible cables, such as providing enlarged heads, splices nd other means for securing the cables together and to adjacent fastening means. A

practicing my invention, l provide an integral body member, preferably of porcelain, although other insulating material may be used, having a main or central, substantially cylindrical body portion of relatively small diameter' and a plurality of discoidal petticoat portions. The body member is so provided with intercepting substantially right-angularly related openings as to permit a plurality of rigid metal members, such as bolts, to be easily placed in the openings and secured to eac-li other. By the specific form and arrangement of the body and petticoat portions, the insulator is provided with a very effective amount of creep` age surface, its manufacture and assembly are facilitated and more convenient liandling, packingand shipping thereof is permitted than with insulators of irregular or odd shapes. The use of rigid metal members permits thek employment of standard fastening devices, such as nuts and bolts, therewith, and renders less diiicult the placing of the insulators close together, thus permitting a greater number of insulators ere ..th, thereby to be strung in a given distance and increasing the insulating value of the string.

F ioure l, of the accompanying drawings, is a side view, partially in elevation and partially in section, of an insulator embodying my invent-ion; Fig. 2 is an end view of the device shown in Fig. l, and Figs. 3 and t are views, similar to Figs. l and 2, respectively, of a modiiied form of insulator em* bodying my invention.

An insulator l, preferably of porcelain, comprises a substantially cylindrical body portion 2 and a plurality of discoidal petticoat portions 3. Pairs of transverse openings 4' and 5 are spaced laterally with respeot to each other and along the longitudinal axis of the insulator, the openings being intercepted, at one side, by'longitudinal openings 6 that extend to Van end surface 7 of the body portion 2, and the openings 5 being intercepted, at one side, by longitudinal openings 8 that extend to the opposite end surface 9 of the body portion 2. The

openings

4l, 5, 6 and 8 are preferably formed in the body portion during the molding or other process of constructing the insulator.

Transverse members l0 and l1, preferably conforming closely in size and shape to the openings t and 5, respectively, are provided with interiorly threaded side openings 12 that are adapted to register with the

openings

6 and 8, respectively', to receive terminal members or rods 13 and lll that extend into the body portion from opposite ends thereof.

The construction shown in Figs. 1 and 2 provides a rectangular framework inside the body portion by which longitudinal stresses transmitted between the opposite end terminal members are effectively and widely distributed; `That is, there are substantially two sets of interlinlred metal structures by which the total force is divided to impose smaller fracturing stresses at different parts of the body member.

In Figs. 3 and 4, instead of pairs of the transverse members l0 and ll, there is only one of each arranged at right angles to the other, the construction, in this form, being otherwise substantially the same as in Figs. l and 2.

In both forms, but as shown clearly in Fig. 3, the transverse members 10 and l1 are preferably constructed shorter than the transverse openings through the body portion which theyoccupy, and the'ends olf the openings are lilled with bodies 15 oi cement or other suitable insulating material that maybe-smoothed oltoconorm to the suraceofthabody .portion While I have shown and described particular forms of my invention, changes may Ybe elected therein Without departing from the spirit and scope thereof, as set torthin the accompanyingV claims.

Polainr as my invention-z 1. An insulator comprisinga cylindrical body` member of refractory material having a'pluralit'y of integral annular petticoats forn'iing a plurality ot annular channels diametricallytherebetween fand a pair otl in, and surrelated longitudinal recesses roundedfby, vsaid body and extending from n each end'surieace of the body .member Vto an inner position laterally opposite one of said ehrannelgthe diameters on which* the recesses ofsaidJpallS are disposed being at right'angles to each other, said member also having late ra'l'openings to the exterior oi the body member each intercepting the inneijfendsfof one of said'pairs oie longitudinal recessesfand; extending y'bet-veen opposite points .inoiie of said channels, holding niembeijs' disposed in' the lateral j openings and terminalnienibers in the longitudinzd"open-Y tliereof to ingsV secured at theinner. ends salidulatera'l holding grmeiiibeis, said holding vandteri-ninal members being placed in operative lposition by insertion'l'rom the exterior ofia tliefinsulating. body in the directionV orn their longitudinal axes. Y

2.1 An insulator comprising an insulating body4 member having, longitudinally-displaced and substantially right-angularlyrelated transverse openings therein and longitudinal openings extending Jfrom each ofi'sailjti'ansverse openings to the end of the body nieinber beyond. the other transverse opening,liolding members disposed in said, j'transverse`- openings, and terminal members disposed in said longitudinal. openings ,and 'held j inl'positi'on by said holding members, said holding and terminal" nieme-v bersA being placedI Vin -operative position n by inseijionnoinft e exterior or the insulating bodylint Av,di'rection}ot their longitudinal Eels/.islav 3. An insulator comprising a preformed insulating body member having longitudinally-displacedL and substantially v angularly-related transverse lopenings communicating With the outer surface tiereoil and longitudinal openings extending from each of said transverse openings to the end of the body member beyond the othei1 trans-V verse opening, holding members in said right Y transverse openings, and terminal members 'Y Vin said longitudinal openings and held in position by said liolding'meinbers, said liold` ing and terminal members being placed in Y operative position by insertion from theA exterior of the insulating body in tliedireclongitudinal openings and held in position by said holding members, and bodies of insulating material disposed in Vsaid transverse the surface ot the body member.

5. The combination Witl an comprising a single integral insulating body member having preformed intercept-ing lateral and longitudinal elongated openings each entirely circumlierentially surrounded by thematerial, and accessible 'fronithe exterior of the body member, an elongated holding member for insertion along its longitudinal-axis from the exterior of the insulator into said lateral opening, and an elongated terminal member for similar insertion from the exterior ot the insulator into said longitudinal opening to cio-operate with said holding member.

ln testimony whereof, lV have hereunto subscribed my naine this 30th day of Oct., 1919.

onnis'rmu niinnoiio.

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openings between the holding members and insulator