US1302796A - Insulator. - Google Patents

Description

T. J. HEARD.

INSULATOR.

APPLICATION FILED MAY 15. 1918.

THOMAS J. HEARD, OF WILSON, KANSAS.

INSULATOR.

Application filed May 15, 1918.

To all whom it may concern:

Be it known that I, THOMAS J. HEARD a citizen of the United States, residing at wir son, in the county of Ellsworth and State of Kansas, have invented certain new and useful Improvementsin Insulators, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to insulators such as are commonly employed for attaching telegraph and telephone wires to the arms of supporting poles or masts.

The present invention has for its primary object to provide an insulator of the above character which is of such construction that the wire may be easily, quickly and securely attached to the insulator or removed therefrom.

It is a more particular object of the in-v vention to provide an insulator having a body of porcelain, glass. or other suitable in-' sulating material, and a laterally directed wing or flange projecting from one side of said body and having means therein to receive the wire, whereby the necessity of wrapping or winding the wire about the body of the insulator may be obviated.

It is also a further general object of my invention to provide an insulator which is simple and durable in its construction, highly serviceable and convenient for the purpose in view, and which may be manufactured at comparatively small cost.

With the above and other objects in view, the invention consists in the improved construction and arrangement of the several parts as will be hereinafter more fully described, subsequently claimed and illustrated inthe accompanying drawing, in which similar reference characters designate corresponding parts throughout the several views, and wherein Figure 1 is a vertical sectional view through the insulator showing the same mounted upon the pin fixed in the supporting arm; and

Fig. 2 is a perspective view of the insulator.

Referring in detail to the drawing, A designates one of the arms of a telephone or telegraph pole, in which one or more vertically disposed pins P are securely fixed in any preferred manner, said pins gradually decreasing in diameter, or tapering toward their upper ends.

My improved insulator, which constitutes Specification of Letters Patent.

Patented May 6, 1919.

Serial No. 234,627.

the subject matter of the present invention, includes a body 5 of frust-o-conical form, said body being constructed of porcelain, glass or other suitable insulating or nonconducting material. This body 5 has a tapering bore to receive a pin P and is retained upon said pin by a nut or other suitable clamping means engaged upon the upper end of the pin.

The body 5 of the insulator is formed at one side thereof with a laterally projecting flange or wing 6 of triangular shape, the end edge of the triangular flange extending horizontally from the smaller end of the insulator body. The outer side edge 7 of the flange 6 inclines downwardly and inwardly to the base edge of the body 5.

In the wing or flange 6 of the insulator, a slot 8 of inverted U-shaped form is provided, the entrance end 9 of said slot opening upon the inclined edge 7 of the flange 6. The other end 10 of the slot 8 is located adjacent the side wall of the insulator body 5 and above and in line with the base edge of said body. In this end of the slot 8, the current conducting wire W is adapted to be seated. It will thus be seen that the wire engages the flange or wing 6 at a point adjacent the body wall of the insulator and comparatively remote from the outer inclined edge 7 of said flange. Thus there is little liability of breaking off the portion of the flange 6 between the spaced arms of the slot 8 by pressure or strain of the wire upon said wing at the inner end of the slot. From the foregoing description, taken in connection with the accompanying drawing, the construction and several advantages of my improved insulator will be readily understood. The current conducting wire can be readily engaged in the entrance end of the slot 8 and moved upwardly and then inwardly and downwardly and seated in the end 10 of said slot. The wire can also be as readily disengaged from said slot and disconnected from the insulator. The insu lator can be readily molded and produced in large quantities at comparatively small cost. The device can, of course, be made in various sizes and employed in electric wiring installations other than that above referred to.

While I have herein shown and described the preferred form and construction of the several parts of the device, it is to be understood that the same are susceptible of considerable modification and I, therefore, re-

serve the privilege of adopting all snch legitimate changes as may be fairly embodied Within the spirit and scope of the invention as claimed. 7

Having thus described my invention, What I claim is An'insulator comprising a frusto-conical body, a triangular-shaped ifiange integral with and projecting laterally from one side of said body, the end edge of said flange extending from the smaller end of theins11- lator body'and the outer inclined edgevof the flange converging toward the larger end of thebody, said flange havingan in- 3 verted U-shaped slot formed therein openand the other end of said slot terminating adjacent the body Wall of the insulator at a point comparatively .remote from said inclined edge. a In testnnony whereof I hereunto aflix my signature in the presence of twowltnesses.

' THOMAS HEARD.

WVitnesses ANTHONY F. SOMER, DANIEL KELLER.

Copies;otzthil ;patcgt,mgyibeiqbtained-191% flyeecents each,,l3y- .a.ddressi:ng the Commissioner of Iatents,

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