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Publication numberUS1280172 A
Publication typeGrant
Publication dateOct 1, 1918
Filing dateFeb 16, 1918
Priority dateFeb 16, 1918
Publication numberUS 1280172 A, US 1280172A, US-A-1280172, US1280172 A, US1280172A
InventorsCharles A Culligan
Original AssigneeCharles A Culligan
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1280172 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



Patented 0601,1918.



Specification or Letters Patent.

Application filed February 16, 1918. Serial No. 217,721.-

To all whom it may concern:

Be it known that I, Ci-n-mL-ns A. CULLI- GAN, a subject of the King of Great Britain, residing at Penniac, in the Province of New Brunswick and Dominion of (Janada,.have invented certain new and usefulImprovements in Insulator-Protectors, of which the :lollowing is a specification.

Telephone, telegraph, and other electrical conducting wires are usually attached to insulators which are mounted upon poles and other supporting means. These insulators are frequently used as targets by mischievous persons, and as a consequence, Such insulators are frequently broken, thereby permitting the wire strung thereon to become detached and fall, and oftentimes resulting in a fatality particularly when the current carriedthereby is of high voltage.

The present invention has for its primary purpose to protect the insulators of aerialstrung electrical conducting wires, while at the same time insuring complete insulation of the conductor to prevent loss of current. p The drawing illustrates a preferred em bodiment of the invention, however, it is to lie-understood that in adapting the same to meet different conditions, \various changes in the form, proportion, and minor details of construction may be resorted to without departing from the nature of the invention as claimed hereinafter. In the drawings:

Figure l is a View in elevation of theupper portion of a pole provided with insu lator protecting means embodying the invention.

F ig. 2 is aview similar to Fig. 1 with the protector and insulator in central section.

' Fig. 3 is a section on the line 3-3 of Fig. 1 looking to the left as indicated by the arrows.

Corresponding and like parts are referred to in the following description and indicated in the several. views of the drawings by like reference characters.

The numeral 1 designates a pole such as commonly employed for aerial-strung telephone and telegraph wires.

The protector is of sectional formation and comprises the parts 2 and 3 which are separable on a vertical line. The part 2 is attached to the pole or other supporting means 1 and. the part 3 is hingedly connected to the part 9 so as to swing outwardly and downwardly from its upper end. "The hinge connection between the parts 2 and 3 is molded or; pressed from any suitable jplastic material. i

In forming the protector, the part .Zwvhich is secured to the post or support 1 isadapted to have the insulator 5 attached thereto, and the part 3 constituting the cover is recessed upon its inner-face to receive the outer or projecting end of the insulator. The insulator 5 may be of usual formation and constructed of glass or other vitreous material and is internally screw-threaded to make connection with a pin 6, which is formed as a part of the section 2. The part 2 is recessed in its outer face as indicated at 7, such recess being of ample proportion to receive the insulator and admit of the conducting wire 8 being readily attached thereto. The base portion of the pin-6 is reduced, and an enlarged portion 9 is formed at the bottom of the recess 7 to insure a substantial connection being obtained between the pin and the part 2 of which it preferably constitutesformed upon its inner face with a recess 11 to"n1atch with the recess 7 and receives the outer end of the insulator 5. The faces of the parts 2 and 3 are adapted to make close contact so as to exclude moisture. Notches or grooves 12 are formed in the edges of the Patented Oct. 1, 1918.

parts 2 and 3 at the sides of the recesses,

and the notches or grooves initially form openings for the passage of the electrical conductor 8 when the cover 3 is closed against the part 2. Suitable fastening means hold-the cover in closed position and, as

shown consist of hooks 13 and eyes 14. The hooks by preference are attached to the upperportion of thepart 3 and areadapted to engage the eyes 14 which are carried by the part 2.

It will be understood from the foregoing,

ple structure capable of being cheaply manufactured and easily and quickly placed in position, and serving at the same time as supporting means for the insulator thereby;

obviating the use of the ordinary pin or arm 'upon'nvhich the insulator is generally mounted.

to receive and inclose the insulator, and one of such parts being provided with a support upon which the insulator is mounted, said support forming an integral portion of the part carrying the same.

2. A protector for the insulator of-an electrical conductor such protector comprising co'mplenien'tal parts havingmatc-hi'urecesses in their meeting faces and one of such taken in connection wlth the accompanying" drawing that the invention provides a pro parts having an integral insulator support projecting 'from the bottom thereof, and said parts having opposite openings for the passage of the electric wire adapted to be bound upon the insulator.

3. An insulator protector comprising complemental parts. hingedly connected at one end and having matching recesses in their meeting faces, and one of the parts having an integral insulator support, and'said protector having opposite openings for the passage of the electric conducting-wire.

In testimony whereof I afiix my signature in presence of two witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2670872 *Jun 3, 1950Mar 2, 1954Motorola IncHinge for plastic housings
US3128331 *Jun 5, 1962Apr 7, 1964Groom David WBare wire transmission arrangement
US3197557 *Jun 8, 1962Jul 27, 1965Clarence TromsnessElectric fence insulator mount
US4665279 *Mar 31, 1986May 12, 1987Mpx Systems, Inc.Protective container for transmission cable splice
U.S. Classification174/524, 174/40.00R, 174/139
Cooperative ClassificationH01L2924/01078