US1015224A - Insulator. - Google Patents

Description

J; ALSBERG. USULATOR' APPLICATION FILED NOV 18, 1908.

1,015,224. 1 Pzitented Jail-16,1912;

' 2SHEBTS.SHBET 1.

' ATTORNEY J. ALSBEB'gQ.

v INSULATOR.- APPLICATION FILED NOV. 18, 1909.

' Patented Jan. 16, 1912 2 SHEETS-SHEET- 2.

INVENTOR WITNESS? r QflfQfMM ATTORNEY JULIUS ALsBnnGjor' NEW roan, N. Y.

- INsULATo'n.

Specification of Letters Patent.

Patented e r91 2.

Application filed November 18, 1808. Serial No. 463,285.

T 0 all whom it may concern:

Be it known that I, JULrUs ALSBERG, a citizen of the United States, residing at the city of New York, borough of Manhattan,

in the county and State of New York, have invented certain new and useful Improvements in Insulators, of which the following is a full, clear, and exact specification.

My invention relates to improvements in means for supporting electric conductors, and the same has for its objectmore particularly to provide a simple, efficient and re liable device for preventing injury to the conductors or the apparatus in the. circuit due to an abnormal rise ofpotential due to lightning or other causes.

Further, said invention has for its object to provide a support for electric conductors by means of which the abnormal increase of potential may be conducted from the line and caused to expend itself until the normal conditions are again restored.

Further, said invention has for its object to provide an insulating support for an electric conductor having means combined therewith whereby the arcing due to'such sudden rise of potential may be conducted away from the insulating member proper of the support and finally caused to rupture itself or blow out.

To the attainment of the aforesaid objects and ends my invention consists in the novel details of constructioinand in the combination, connection and arrangement of parts hereinafter more fully described, and then pointed out in the claims.

In the accompanying drawings forming part of this specification, Figure 1 is a side elevation, partly in section, showing one form of insulator constructed according to and embodying my said invention, and Fig. 2 is a detail side view, partly-in section, illustrating a modification.

In said drawings 5 denotes a supporting arm and 6 a flexible insulating member, formed in the shape of a rope composed of strands of insulating material. The upper end of said insulating member is spliced to the body thereof to form a loop 7 having a thimble 8 therein adapted to receive a hook 9 of a bolt 10 secured to said supporting arm 5 by a nut 11. The lower end of said insulating member 6 is frayed out and secured bycement or other suitable medium within a conical socket 12 provided at its lower end with a loop or bail 13. a

14 denotes a clamp provided with a hook or eye 15 for securing the same to the loop or bail 13 at the lower end of the insulating member 6, and 16'denotes an electric con- "ductor secured in said clamp 14.

17 and 18 denote tubular protecting sections preferably made of glass, porcelain or other suitable insulating material and ar-- ranged one upon the other and surrounding said insulating member 6. The protecting section 18 is provided at its lower end with an enlarged recessed portion 19 having a shoulder 20 at the base of said recess adapted to rest upon theupper or smaller end of the conical socket 12, and at its upper end said protecting section 18 is provided with an outwardly projecting bead 21, and an inwardly projecting bead 22 adapted to contact with the insulating member 6 and hold the same properly centered within said protecting section 18. The lower end of the protecting section 17 is also provided with .an enlarged recessed end 23 which is adapted to receive the upper end of the protecting section 18, and upon the outer surface of said protecting section 17, above said enlarged recessed portion 23, is provided an annular bead 24. 25 denotes an inwardly projecting bead arranged at the upper end of said tubular protecting section 17.

26 denotes aconical protecting hood made of. glass, porcelain or metal or other suitable material or combinations of material and secured to the lower end of the protecting section 17 above the enlarged end 23 thereof by cementor other securing means, and 27 denotes a similar hood disposed above the upper ends of the protecting section 17 and the insulating member 6 and secured rigidly in position upon the bolt 10 against the underside of the supporting arm 5.

28, 28 denote curved rods arranged above the conductor 16, and secured intermediate their ends by clamps 29 29 to the opposite edges of the hood. 27 with their inner ends terminating adjacent to the upper end of the protecting section 17, and their outer ends free and extending to a point above the top of the protecting hood 27.

Then protecting hoods 26, 27 are formed of insulating material as shown at Fig. 2 conductors 30, 30 are provided extending from the curved rods 28, 28 to the bolt 10, and a conductor 31 extending from the upper end of the bolt to another conductor in the line, or to the ground, should be provided, as indicated in dotted lines in the drawing. I

The operation of the apparatus is as follows: Under normalconditions of line potential the insulator will serve to duly support the conductor 16 and prevent leakage therefrom.- However, as soon asthe potential in the line rises owing to lightning or any other abnormal conditions or disturb ances which-would tend to cause arcing and burn out the .apparatus in the circuit, or. the insulators, the current will jump from theconductor 16 to one of the curved rods 28, 28 at some points thereof, for example be-' tween the points A, B, and then travel outwardly toward the ends of said rods 28, 28 to a point, for example 0, wherethe distance between the conductor 16' and said rod 28 is so great as to cause the arc to rupture itself. This action will be repeated as long as the abnormal potential is present in the line, and as soon as conditions return to the normal this action will cease.

It is to be noted that the operation of my improved insulator is not affected to any material extent by varying conditions of temperature and atmosphere.

In this application I have not claimed the specific construction of the insulator apart from the lightning conductor with which "it is combined, as the same constitutes the subject matter of a divisional application filed December 18, 1911, Serial No. 666,392.

Having thus described my invention, what I claim and desireto secure by Letters Patent 1s:

1. The combination with a conductor and an insulator therefor, comprising an insulating element and a protecting hood, and a plurality of conducting members on said protecting hood arranged in the same vertical plane as said conductor and at an angle thereto, substantially as specified.

2. The combination with a conductor and an insulator therefor, of a plurality of conducting members on said insulator arranged in thesame vertical plane with said conductor and at an angle thereto, substantially as specified.

- 3. The combination with a conductor and an insulator therefor, of a plurality of conducting members secured to said insulator adjacent to said conductor and arranged in the same vertical plane with the said conductor and at'an angle thereto; said conducting members having their inner ends lowermost, substantially as specified.

4:. The combination with a conductor and an insulator therefor, of a plurality of conducting members secured to said insulator adjacent to said conductor and arranged in the same vertical plane therewith, andat an angle thereto; said conducting members having their inner ends lowermost, substantially as specified. i V

5. The combination with a conductor and an insulator therefor, of a plurality of conducting members secured intermediate their ends to said insulator and arranged in the same vertical plane with said conductor, and at an angle thereto; said conducting members having their inner opposing ends lowermost, substantially as specified.

6. The combination with a conductor and an insulator therefor, of a plurality of curved conducting members secured intermediate their ends to said insulator and arranged in the same vertical plane with said conductor; said conducting members having their inner ends extending downwardly and terminating in proximity to each other and their outer ends extending upwardly, substantially as specified.

7 The combination with a conductor and an insulatortherefor, having a protecting hood, of a plurality of curved conducting members secured intermediate their ends to the edge of said protecting hood, and lying in the same vertical plane as said conductor,

.with their inner ends extending downwardly and terminating adjacent to each other, and their outer ends free and extending upwardly from the edge of said protecting hood, substantially as specified.

8. A device of the character described comprising an insulating member, means for supporting said insulating member, a series of protecting sections surrounding said insulating'member, at protecting hood ar-- ranggd above each of said protecting sections, and inclined conducting members secured intermediate their ends to the edge of one of said protecting hoods and extending Epwardly therefrom, substantially as speci- 9. A device of the character described comprising an insulating member, means for supporting said insulating member, a series of protecting sections surrounding said insulating member, a protecting hood arranged above each of said protecting sections, inclined conducting members secured intermediate their ends to the edge of one of said protecting hoods and extending upwardly therefrom, and conductors extending from said inclined conductors to the means vfor supporting said insulating member, substantially as specified.

Signed at the city of New York, in the county and State of New York, this twelfth day of November, nineteen hundred and eight.

JULIUS ALSBERG. v Witnesses:

CONRAD A. Dlnr nron, A. R. ANGUS.

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