US955661A - Insulator. - Google Patents

Description

W. E. MOORE.

INSULATOR. I A PPPPPPPP 0N F IIIII EB. 222222 5.

955,661 Patented Apr. 19, 19710.

Cif

.IWILLIAM MOORE, OF CONNELLSVIIiLE, PENNSYLVANIA.

INSULATOR.

specification of Letters Patent.

Patented Apr. 19, 191e.

`Application filed February 25, 1905. Serial No.1247,292.

To all 'whom 'it may concern: `Be it known that I', VILLIAM E. Moonn,

citizen of the United States, residing at Connellsville, in the county of Fayette and State of Pennsylvania, have invented cer.

tain new and useful Improvements in Iiisulators, of which the lfollowing is a speciiv cation.

This invention relates to improvements in:

pointed out in 'the accompanying Claims.

Refer-ring to the accompanying drawings which illust-rate several embodiments of my invention z-Figur'e 1 represents one form of my improved insulator partly in section .and partly in sideelevation, secured to a cross-arm or other support; Fig. 2, a section taken along the lin'e 2-2, Fig. 1, and looking down on top ofthe insulator, and Fig. 3, a bottom plan view of the insulator shown in Fig. 1; Figs. 4, .5,"6 and 7 illustrate different arrangements for securing the insulator to its support2 the said insulator beingy shown partly in section and partly in elevation; Fig. 8,'is a detail view partly in section of an alternative form'of device for securing 'the line wire to the insulator, and, Figs. 9 and/ 10 showin elevation the lower portion of the pendent member of the insulator provided with still another form of wire holding device. l

In the form of my invention shown in Fig. 1,- 1 represents the body of the insulator consisting of a massof insulating materia such as glass, porcelain, oi: other suitable substance, provided with central pendentwire lsup orting member 2`and suitable petticoats 3, or keeping dry the surface of insulator between the. upper surface and point of attachment of the line wire.

, In the upper end of the insulator, opening at the top thereof, is a cavity 4 provided with a series of projections 5, which, in the form illust-rated are separated by the-vertical recesses 6, though any other suitable arrangement of projections may be employed. Into this cavity extends one end of anattaching bolt or its equivalent 7,'suitably iougliened as at 9 to provide retaining points. This bolt is heldwithin the cavity by cement, sulfur or other suitable substance E), poured into the cavity around the bolt and allowed to set `or become hard, thus engaging the projections on the side of the cavity Vand the roughened part of the bolt and firmly holding the latter in place. By means of this attaching bolt 7, the insulator may be secured to a cross-arm 10, as shown in Fig. 1, or to any other support and thus held in a depending position. In thus se-v curing the insulator to a crossarm or other support, it is advisable to slightly countersink the insulator in the cross arm as at 11,

to prevent the `accumulation of water between the cross arm and insulator, which, after freezing would'have a tendency to crack the -insulator and corrode the bolt. Whetherthe supporting arm is counteisunk orA not, it is always advisable to draw the top ofthe insulator tightly against the arm or other su port.

It-will) further be seen that as the top of the {insulator forms a continuous curve, that is, continuously convex, the insulator at every point recedes from the support, which does not allow water to accumulate 'between the insulator and support, as would be the case were the insulator flattened on top.

The line wire is supported at the depending end of the insulator as shown in Figs.

1 and 3, in which 12 represents the line wire and 13 the tie wire. For the purpose of supporting the line wire I provide upon the lower end of the member 2, two oppo* sitely disposed lugsor horns 14, formed by the oppositely inclined grooves' or slots 15. These lugs hold the line wire firmly without bending it, which will readily be seen-1s a great advantage. In securing the lmewire to the insulator it is merelyV necessary to, x

place thc wire so that it registers with the openings 1G between the lugs 14, and then turn the insulator, when the two lugs will pass over the wire and hold it as shown. By this arrangement a lineman is enabled to hook the insulator on a live wire and lift theline up and bolt theinsulatoi. to a cross arm or other supportLwit-hout dan er. This not only reduces the (danger Yof Vs rocks, but

greatly facilitates repair work and becomes an important feature in high tension line work. i

At a suitable point or points on the memb'er 2 are located one or more annular grooves 17 around which pass the tie wire, or, if desired, a line wire may be tied in said groove.

In Fig. 4, ll have shown another arrangement for supportin@r the insulator. lin this case the material of the insulator is molded directly around the attaching bolt 18, which is preferably provided with some enlargement, irregular or roughened portion surrounded by the material of the insulator. 'ln the case shownv the bolt is provided with a head 19.V

ln the form" of my invention shown in Fig. 5, an inverted bowl-shaped cap, consisting of a metal stamping, spinning or casting 20, covers the top of the' insulator and is bent over theedge of the outer petticoat as at 21. From the center of the convex surface of the cap20, extends a lug 22, into which is fastened the end of an attaching bolt23 by which the insulator is secured to its support. given the insulator byj the met cap 20, thisy form of my invention ,is especially applicable to use in localities where insulators are apt to be broken by being shot or thrown at. Instead of spinning the cap 24 directly on the insulator, it may be attached to the insulator with cement, or some substance which will set when cool, such substance bein poured around between the cap and insu ator.

A form of insulator in which the supporting cap is secured to the insulator by cement or the like isshown in Fig. 6. ln this form, however, the insulator differs somewhat from that shown in Fig. 5 in that the cap 24 does not extend over the whole of the outer portion of the insulator, but over only a portion thereof, the said insulator being molded with a head 25 yhaving an annular/"flange 26 over which the cap 24 lits; the connection between the cap and insulator bein formed by the cement or its equivalent ln Fig. 7, I have -showna form of my invention in which ythe cap 24 is spun directly over the head 25 of the insulator, passing around and under the flange 26.

lin Fig. 8, l have shown an alternative arrangement for securing the line wire to the insulator. ln this case, instead of forming the wire holding horns or lugs 14 integral with the lower end of the central member 2, l replace'these by similarly shaped horns or lugs 14 upon a metal cap 29, which exltends up the sides of the ilower end of the central member 2. The upper end of the cap 1s bent over as at 29 to engage an annular groove 30 in the insulator for the pur- By virtue ofthe protection pose of securing the cap in place. J[any other suitable means may be employed for attaching the cap 28 to the end of the insulator. l

ln Figs. 9 and 10 l have shownstill another form vof device for securing the line wire to my improved insulator. lin this case there are formed on the bottom end of the depending member, 2, three wire holding lugs 31, 32 and33, preferably molded integral with the insulator. 'lwo of these lugs, 31 and 32, extend in the same direction, while the lug 33 extends in an opposite direction and between the lugs 31 and 82 as shown, forming between said lugs a wire retaining opening 84 through which a line -`inoisture between the insulator" and the support as described; this also prevents the danger to breakage due to the freezingl of l such accumulatedtmoisture. v

llFhe insulator is further im roved4 by the avoidance of the use of wooden plugs'inserted into the insulator which absorb and retain moisture and not 'only thereby/.cause the breakage of the insulator by swelling' but greatly impair the insulation.I

1n addition to the above features, the manner of securing the line wire to the insulator, and other points before mentioned, all constitute, it is believed, a distinct advance in the art.

What l claim is:

1. A. wire supporting petticoat insulator, having attaching means secured thereto for supporting said insulator from above, a pendent member extending from beneath the petticoat of said insulator andhaving an annular groove in its periphery near its depending end, a metal cap havin a recessed end into which the lower end or said pendent ymember' extends, the side walls of said recess being bent to extend into said annular groove, and-wire retaining lugs formed on said cap.

2.k wire supporting insulator, having a metal cap sepured to one end thereof, said cap having oppositely directed lugs arranged to grip and support the wire.

3. A wire supporting petticoat insulator having attaching means secured to the said insulator for supporting the same from above, a pendent member extending from beneath the petticoat of said insulator, and

i wire retaining lugs formed on the end of ping lugs formed on the end of said pendent member.

5. A wire supporting petticoat insulator, having an attaching bolt extendingvfrom the top of said insulator for supporting the A same from above, a pendent member extending from beneath vthe petticoat of said insulator, and oppositely-directed wire re'-` taining lugs formed. on the end of said' pendent member, adapted and arranged to grip a. Wire passing straight across said pendent member.

G. A wire supporting insulator, having a body portion and annular petticoats formed thereon, a central pendent member eXtend ing from the body of said insulator beneath said petticoats, oppositely directed wire supporting lugs formed on thev lower end of said pendent member and arranged to grip and support a wire passing straight across the said member, and attaching means adapted and arranged to secure said insulator to a support in a pendent position.

7. A wire supporting insulator, having a body portion and annular petticoatsformed thereon, a central pendent member extending from the body of said insulator beneath said petticoats, oppositely directed wire supporting lugs' formed ori the lower end of" said pendent member andl arranged to grip -andsupport a wire passing straight across the said member, and means extending from the top of said insulator for attaching the same to a support in a pendent position.

In testimony whereof I affix my signature in presence of two witnesses;

WILLIAM ENOCH MOORE. Witnesses:

BYRON PORTER, EDW. K. DICK.

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