US949130A - Pole-line lightning-arrester. - Google Patents

Description

A. R. RHEINBBRGER.

POLE LINE LIGHTNING ARRESTER.

APPLIDATIOH FILED 00127, 1908.

949, 1 30. Patented Feb. 15, 1910.

(25 e6. 41 j/Yfonao/F. met-1656 8 sectional elevation ALFONSO B. BHEINBEBGEB, OF ST. PAUL, MINNESOTA.

POLE-LINE LIGHTNING-ARRESTER.

Specification of Letters Patent.

Patented Feb. 15, 1910.

Application filed October 7, 1908. Serial No. 456,627.

'- and %tate of Minnesota, have invented a new and useful Improvement in Pole-Line l.ightuing-ilrrestcrs, of which the following i :1 specification.

My invention relates to improvements in 1 lightning urn-esters and more particularly to u device of its kind which is to be applied to a line wire outside of a building to effectn'ely ground an excessive charge of electric current prior to reachlng the lnstrument or other apparatus protected.

A further object of this invention is to provide a construction which will be simple and inexpensive to manufacture and in which the leaking of the charge around the I nrrester will be prevented.

The instrument is characterized by the fact, that the device is particularly adapted for use in pole line construction and that the parts are associated with an insulator 3 to which the line is secured and with the pin or bracket upon which said insulator is adapted to be mounted.

Tn the accompan ing drawings forming part. of this speci cation, Figure 1 is a artly in section of my invention showing tie parts associated witi an insulator and a pin; Fig. 2 is a perspective view of the electrode which is adapted to be connected with ground; Fig. 3 1s a perspective view of the electrode which is adapted to be connected with the line conductor, and Fig. 4 is a plan View illustrating the line conductor connected with a pair of insulators which are provided with my improvement, and Fig. 5 is a view of an insulator employing my invention in which a helix'is included. lit

In the drawings, A represents an insulator made of glass or other suitable ms.-

terial and B a pin made of wood or other suitable materi upon which said insulator is threaded in the usual manner. The insulator has the usual annular groove 2 in which the line conductor 3 is secured by c means of the tie-wire 4 or by any other means desired. The lower portion of the insulator is formed with a petticoat 5 which s adapted to prevent water from coming into contact with the, electrodes in the inzsulator.

C represents the line electrode and D the ground electrode of the lightning arrester said parts being seated in the lower end 0 the insulator and held apart with an air gap 6 between them b means of an intervening shoulder 'i'. T 1e line electrode C is in the form of a frusto conical shell having two depending and upturned arms 8 an 9 which are secured in the groove 2 in contact with the line conductor 3 and tie-wire 4 thus assisting to su port the line electrode in the insulator. ormally the line conductor is held in lace u on the insulator before the line con uctor is secured thereto, by detents 10 which are formed in the arms illld spring into the groove 2 in the insuator.

As shown the pin B is formed with a shoulder 11 between the threaded upper end 12 and the body 13 which is adapted to be mounted upon a cross-arm or bracket in the usual manner. The ground electrode D is in the form of a sleeve which is passed over the threaded upper end of the pin and clam ed between the insulator and the 'shou der 11 when said insulator is screwed home. A round conductor 14 in the form of a wire is adapted to be secured between the ground electrode and the shoulder 11 at its upper end and with theground E at its lower end. The outer surface of the ground electrode tapers toward its upper end thus forming a parallel surface with the inner surface of the line electrode. The line and ground electrodes may be made out of any suitable material desired and the connection between the line conductor and the line electrode and the means for supporting the ine electrode in the insulator may be changed and modified as desired within the scope of my invention. In operation all over-char es of atmospheric electricity are dissipate into the ground from the hue conductor by passing over the connectors 8 and 9 and umpin across the gap between the line and oun d electrodes and thence are conducted into the ground over the ground wire. 7

As shown in Fi 5, a second annular roove 15 is forme in the insulator which is adapted to hold the drop or branch 16 leading from the line conductor to the telephone set at a subscribers station. Intersosed between said branch and line conuctor is a helix of wire 17 whose function is to ofier a high impedance efiect to li htning discharges causing them to see a course of least resistance across the ga between the electrodes C and D of tlfe ightning arrester and into the ground instead of causing damage to instruments contained in the branch conductor.

In accordance with the patent statutes I have described the principle of operation of m invention together with the apparatus w iich I now consider to represent the best embodiment thereof but I desire to have it understood that the construction shown is only illustrative and that the invention can be carried out by other means and ap lied to uses other than those above set orth within the scope of the following claims.

Having described my invention what I claim as new and desire to protect by Letters Patent is:

1. The combination with an insulating pin and an insulator mounted thereon having means for holding a line, aair of electrodes one bein mounted upon t e insulator and connected with the line and the other mounted upon the pin and connected with ground, said electrodes being spaced apart to form an air gap across which oscillatory dischar es are adapted to jump.

2. lhe combination with an insulating pin and an insulator mounted thereon having a petticoat and means for holding a line, a pair of electrodes within said insulator and covered by said petticoat one bein mounted upon the insulator and connect with the line and the other mounted upon the pin and connected with ground said electrodes being spaced apart to form an air ga across which oscillatory discharges are a apted to jump.

3. The combination with an insulating pin and an insulator mounted thereon having means for holding a line, a air of electrodes onc mounted upon the insulator and having :1 connector in contact with the line and the other mounted upon the pin and connected with ground, said electrodes being covered by the insulator and spaced apart to form an air ga c1 latory discharges are a apted to' jump.

l. The combination with an insulatin pin having a threaded upper end and a body with an intervening shoulder and an insulator threaded upon the upper end of said pin and havin an annular groove for holdin a line con uctor and a petticoat formed with an inner surface having an annular shoulder, a pair of electrodes in the form of across which essleeves, one of larger diameter than the other, said sleeves bein held within the insulator with said shouFder on the insulator intervening to hold them spaced a art, the outer sleeve having an arm, exten ing into the groove of the insulator to hold the outer sleeve in place and the inner sleeve being clamped between the insulator and the shouldcron the pin, for the purposes specified.

5. The combination with an insulatin pin B and an insulator A mounted thereon laving an annular groove 2 in its outer surface for holding a line, a pair of line and ground electrodes C and D inserted in the lower end of the insulator and spaced apart by a shoulder 7 formed on the inner surface of the insulator, said line electrode being formed with a pair of arms extending into the groove on the outer surface of the insulator and said ground electrode being placed upon the pin and adapted to be connected with ground, said electrodes being spaced apart to form an air 'ap across which oscillatory discharges are a apted to jump.

6. A device of theclass set forth, comprising, in combination with a main conductor, a branch conductor, a ground condoctor, a pin, and an insulator therefor having a petticoat, a pair of electrodes spaced apart in the lower end of said insulator one being mounted upon said pin and connected with said ground conductor and the other mounted upon said insulator and cooperating with one of said main and branch conductors and a helix also cooperating with said main and branch conductors; whereby said petticoat is adapted to shed water from said electrodes, said helix to impede the passage of lightning discharges over the brancl conductor and said electrodes to offer a course to dissipate said discharges into the ground.

7. The combination with an insulating pin and an insulator mounted thereon, a pair of line and ground electrodes between said insulator and pin, one of said electrodes being mounted on said insulator and the other on said pin, said electrodes being spaced apart to form an air gap across which oscillatory discharges are adapted to jump.

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

ALFONSO R. RHEINBERGER.

Witnesses:

Monrrz HEIM, F. G. BRADBURY.

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