US1667970A - Standard for electric wiring and supports therefor - Google Patents

Description

May 4Al, 1928.

Filed Deo. 29. 1926 ENTOR Patented May 1, 41.928.

i 1 UNITED STATES `GEORG HERRMANN, F RIVER ROUGE, MICHIGAN.

STANDARD FOR ELECTRIC WIRING AND SUPPORTS THEREFOR.

Application filed December 29, 1926.

This invention relates to `improvements in standards for electric wiring and supporting means therefor.

It is an object of the invention to provide a strong rigid standard that will withstand storms, cannot rust. will last indefinitely, will not be damaged by .fire or water, and can be cheaply manufactured.

Another object of the invention is to prow vide a standard and supporting means so designed that when the latter has been placed in position in the ground the former maybe readily inserted into the support and securely held in position. Moreover at any l5 subsequent time the standard may be quickly removed from its support if for any reason itis desired to change the location of the standard.

A further object of the invention is to provide a standard wherein the possibility of its being damaged by lightning is reduced to a minimum.

With these and other objects in view which will become apparent as the specification proceeds, the invention is hereinafter more fully described with the aid of the accompanying drawings and claimed.

Figure 1 is a side elevation of the standard and supporting means partly in section.

Figures 2, 3 and 4 are sections on the lines 2F42, 3-3 and 4 4 of Figure 1.

Figure 5 is a detail of one of the clamp rings showing part of the wire reinforcing supported thereby.

Referring to the drawings, 1 designates a standard consisting of a concrete post longitudinally through the cent-re of which is a. metal rod 2. The latter extends beyond the upper end of the standard to receive a conventional lightning conductor 3, andthe said rod terminates at its lower end substantially flush with the underside of the post. The ground level is indicated at 4. In the standard shown in the drawings that portion which is above ground is shown circular, and the portion below ground is of octagonal section, but obviously the cross sectional shapes may be made to suit requirements.

5o Around the rod 2 at intervals clamp rings 5 are secured. These clamp rings are insulated from the rod 2 by any suitable nonconducting material such as the sheet asbestos rings shown at 6. Through the l5 clamp rings are a plurality of peripheral holes 7. Wires 8, 8 and 8h are threaded Serial No. 157,718.

through the holes 7, pass substantially radially outwards towards the periphery of the` standard and their vouter portions 8l are of such shape as to conform to the periphery of the standard within which they are located. These wiresconstitute a very light and yet strong form of reinforcing for the posts, and may be spaced at any desired interval apart according to the size and weight of the standard.

Substantially parallel with the sides of the standard a plurality of substantially vertical wires 9 are arranged. These wires 9 extend from the lower wire 8a to the upper wire 8b to which they are attached, and they are also looped around each of the intermediate wires 8 iuturn. `A collar 10 is secured around the rod 2 and insulated therefrom as by asbestos 11. From this collar and usually integral with it are a plurality of radiating arms 12.

The support 13 which is also made of concrete has a hole 14 extending downwardly therein from the to to receive the lower end of the standar The bottom of the hole 14 is preferably tapered downwards towards the centre as shown at 15 and the underside of the standard is similarly shaped to rest therein. Through the underside 16 of the support a pin 17 is inserted which is longer than the thickness of the said underside so that its lower end will enter the ground 28 in which the support is sunk. The upper end of the pin has a head 18 thereon which is substantially flush with the bottom of the hole 14 so that the lower end of the rod 2 will rest thereon. In this manner a good earth connection is made directly from the lightning conductor 8, and the insulation 6 and 11 insure any electricity from the conductor passing only to earth.

At the upper end of the support 13 the hole 14 is larger and tapers downwards, and in the sides of the hole 14 slots 19 are provided to yreceive the arms 12. A wedgeshaped ring 20 preferably having hooks 21 in its upper side firmly holds the standard in lposition in its support when driven down into the tapered portion of the hole 14.

The standard is grooved circumferentially at 22 to receive the clamping member 23 which is secured as by bolts 24. On the member 23 is a cross arm 29 generally reinforced by braces 25. These braces and the cross arm maybe made integral with the clamping member or maybe welded or otherwise secured to the latter. Y

On the cross arms 29 conventional insulators QG are supported as by nuts 26L to re- :geive electric Wires. Obviously when desired extra cross arms may be mounted on the standards if it is desired to carry more Wires than one cross arm lwill support.

The Support, 13 is preferably reinforced as shown at 2T to render itleS/,S liable to breakage ywhen being moved from place to place.

lVhile in the foregoingl the preferred embodimentot1 the inyention haS been described and shown it is understood that the invention is Aaubjuit. to auch modilicationsy as `tall Within the .Scope of Vthe appended elaiin.

`\;V h at I claim as my invention and desire to secure by Lettere` Patent is:

1. In a standard 'for electric wires and a Support therefor. the combination of a con Cretepost havingr a rod extendinglongitudinally and Substantially therethrougifh,` a eollanseeured around said rod, radiating arma on .said Collar, `@aid `support having a hole therein to receive the louer end of Said post and slots tooreeeive ysaid radiating armsrand a wedge-,shaped ,ring to Support said poet in the hole insaid Support.

2. An arrangement of the character described, comprisinga Iconcrete `poejthavin f a rod extending longitudinally therethrough and projecting above Said post, a, lightning'coli'ductor secured tothe upper end of Said rod. elanip rings around said rod and insulated therefrom, lateral reinforcing se cured to said clamp rings, and vertical reinforcingT supported by said lateral reinforcing, in Combination with a support adapted to be sunk in the ground and haring a vertieal opening therein to receive the lower end of said post, a pin tlirough Said support on which the lower end of Said rod rests, the lower end of said `pin projet-,thnx below said Support and beinet adapted to entert'he groundi'and a removable wedge-shaped ring?r around said post adapted to hold the latter in a. substantially rertieal position in said hole.

3. An arrangement of the rharaeter di scribed comprising: a concrete post ha\fin; r a rod extendinglr longitudinally therethrough and projecting above Said post, a lightning; conductor on ythe upper end of said rod, rein'torciinfr in said poet. and upprntirig`r meana secured around Said rod and insulated therefrom to hold Said reinforcing, in eonr hination with ar Support adapted to be sunk in the ground and having' a hole therein to rer-cire the ylower end ol? ysaid post. `a pin through aid .Qupport extendingbelou the latter and adapted to projeet into the ground. the lower end 0l' said rod lbeing adapted tores-t, on said pin, and removable iueanS around said post for holding' the latter in a lsubstantially vertical position" in" the, hole in gaid'support.

' GEORG Huurwa-

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