US92111A - edgar simonds - Google Patents

Description

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Letters Patent N 92,111, dated June 29, 1869.

IMPROVEMENT IN TELEGRAPH-INSULATORS The Schedule referred to in these Letters Patent and makin ipart oi the same.

To all whom it may concern:

Be it known that, I, W. EDGAR SIMONDS, of Hartford, in the county of Hartford, and State of Connectic-ut,ha\'e invented a new and useful Improvement in Telegraph-\Vire Insulators; and Ideclare the followii lg to be a full and exactdc-scription thereof, reference being had to the accompanying drawings, and to the "marks of reference thereon. forminga partof this spccitication.

do the drawings Figure 1' is a sectional elevation of an insulator, bearing my improvement, supported upon a standard or-pc Figure 2 is a sectional elevation of what is commonly known as a Mola -insulator, bearing my improvement.

'lhe letter a designates the insulator proper, which is made of glass, hard rubber, tlint, or any other proper non-conducting material.-

The letter I: designates the linc-wire,-secured to the insulator proper, by any of the well-known methods.

The letter cdesignates the. supporting-peg or standard, which is made pret'crablyofmallcable iron. Upon itis cast, or otherwise secured the cap (I, whose edge or lip projects up into, but does not touch the groove e, in the bottom of the insulator proper.

The lower part of the insulator proper extends down into the cup, so as to nearly or quite touch the bottom.

Into the cup isplaced, by ponrim while in a state of fusion, or by any other proper process, some nonconducting or insulatlug-substance, such as, for instance, and prell-rably,paialiine wax, which should not quite fill the cup.-

This last-mentioned insnlating-substance is designated in the drawings, (both ligurcs,) by the letter 8.

Any electrician or other pcrsml fairly skilled in telegmphy, or electrical science, will readily umlerstand, from the above description, that the surface of the insnlatbig-substance, s, is almost perfectly protected from the influence of the weather; and it, is this arrangemcntand ellect which constitutes the essential element of uy invention claimed herein.

There are two kinds of telcgrapli-insulators in common use, the one kind siqiported on a standard or peg, and the other, often termed a hook insulator, where the line-wire is pendentfrom a hook, whose shank is screwed orotln-rwisc. fastened into the insulatorproper, which, in its turn, is fastened into a wooden arm or block, or iron sing, or some. substitute therefor.

l have already shown how my improvementis applicable. to the former kind. 1 will now show how it, is applied to the latter.

In lig.

'lhe lui'ul' A designates the. woo-.lcn block, above referred to, which might as well be the iron casing 1eferred to, or its substitute.

The letter a designates the 'iusulatorpropcr, made of any proper non-conducting material, and which is fastened into the wooden block, or its equi 'alent, by any ot'the well-known methods.

The letter 0 designates the shank, which terminates, at the bottom, in a bifurcated hook, which supports the line-wire l). t

The shank c is fastened into the insulator proper, firmly, by any of the well-known methods in common use.

On the shank c is cast, or otherwise secured, the cup-(Z, which juts up into a shallow opening, 1;, in the bottom of the block A. but does not touch the block an \'where Thus the interior of the cup (I is fully secluded and protected from the weather.

The insulator proper extends down into the cup, so as to near] y .or quite touch the bottom.

Into the interior of the cup (1 is placed, by pouring, while in a state of fusion, or by any other proper process, any proper non-conducting material, as, for instance, aud preferably, paralfinc wax, which must-not quite till the cup (I.

This last-mentioned insulatingsubstance is designated by the letter 3, and, precisely as in fig. 1, its surface is protected from the weather.

It must; be always understood, in applying my improvement to either form of insulator described herein, or to any equivalent form, that the standard or shank 0, mustbo firmly fastened into the insulator proper, a, so that it; will not, shake or wabble in its socket in the least; otherwise the necessary continuity of contact between the insulator proper and the non-comlucting substance 8, will be disturbed, and consequeuthr the insulation impaired.

If glass is employed for the material of the insulator proper, this rigid fastening can probably be attained by some modification of the process employed in making the well-known Lcfi'erts insulator.-

it hard rubber is employed, some modification of the method employed in making the well-known hardrubber hook-insulator? will probably answer.

In any case, no part of my invention consists in doing this, as it has already been effected in different; ways, but the successful working of my improvement depends upon itsbeing well done.

In making the form of insulator shown in fig. 2, it; is probably best to first fasten the shank into the insulator proper, then pour, or otherwise place the insulatbig-substance s in'ihc cup, and lastly, fasten the insulator proper into the block A, or its equivalent.

In making the form shown in tig.-1, it will probably be best to lirst fasten the standard into the insulator proper, and then force such insulating-substances, as

pamfline wax, and the like, into the cup, through a tube, while in a state of fusion.

In using, forthis PIll'POSQ-llltlttlifll which does not admit of such treatment, it will probably be best to place the insulating-substance in the cup, and then fasten the standard into the insulator proper, making the whole one continuous operation.

I am well aware that the cup (I, formed, constructed, and used in the manner described, is an invention made prior to the date of this specification, but the extension of the insulator proper downinto the cup, so as to nearly or quite touch the bottom, and the placing of an insulating-substance, s, in the cup, and

around such extension of the insulator proper, so as to form an unbroken, continuous surface, from the insulator proper to the inside of the cup, over which the electricity must pass, in order. to escape, is a new thing, and is my invention.

1 claim as my invention- 1. As new article of manufacture, a telegraplr wire insulator, having an insulatirig-substance, s,-intcrposed, in the manner described, between the insulator proper, a, and the cup (I, the whole being arranged and constructed as described, for the purpose described.

2. The combination, herein described, of the insulator proper, a, constructed as described, the insulating-substance s, and the cup (I, the whole constructed, arranged, and operating as described for the purpose described. 1

Dated May 14, 1869. r

W. EDGAR SIMONDSJ Witnesses p Eowm E. MARVIN, Room: \VELLS.

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