US884641A - Hanging insulator. - Google Patents

Description

PATENTED APR. 14,1908.

W. G. CLARK. HANGING INSULATOR. APPLIOATION FILED 001'. e, 1906.

. a sec WALTER G. CLARK, OF NEW YORK, N. Y.

HANGING msuLa'ron.

To all whom it may concern. 1

Be t known that I, WALTER G. CLARK, of the clty, county,and State of New York,

have invented a new and Improved Hanging Insulator, of which the following is a full, clear, and exact description. My lnvention relates to improvements in that class of" insulators which are used for carrylng transmlssion wires or cables and the ob ect of my lnvention 18 to produce a device of this kind which can be conveniently suspended from a cross bar or other support so that the transmission wire can be readily fastened to the'lower end of the insulator and further to arrange the structure so that the wire can be conveniently clamped and will be rotected from the weather.

n my improved insulator the petticoats are used as in other forms of outdoor insulators except that the petticoats are given a pitch opposite to that which is usual in such cases and pitch or incline awav from the support instead of towards it. an insulator as that described is particularly convenient in many places where an upright insulator cannot be well used and that the structure is more compact than the customaryupright or standing insulator.

To these ends my invention consists of, an insulator the construction and arrangement of which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar letters and figures indicate corresponding parts in all the views.

Figure 1' is a cross section of the insulator embodying my invention; Fig. 2 is a side elevation of the same; Fig. 3 is a broken inverted plan of the structure and Fig. 4 is a broken detail view showing-a means of .fas-

. tening a transmission wire or cable in place.

The body of the insulator is made up as is usual of a series of shells although the inner shell 10 instead of being a block as is sometimes the case, is of a generally cylindrical shape so that cement'or other binding material can be run into and through it and this inner shell merges in the outer petticoat 11. which inclines outward and downward so as to shed water, and the shell and petticoat can be made of glass, porcelain or any suitable insulation, or the part 10, 11, can be made of paper stock or anything which will shed water, even if it is not a particularly I Specification 01 Letters latent. Application filed October 6, 1906. Serial No. 837,816.

ing hanger or rod 14.

Tfind that such.

Patented April 14, 1908.

good insulator. adapted to abut witha eam or other support and so it has preferably a raised bearing rim or ring 11*, as shown.

Outside of the cylinder or shell 10 is a shell The to of the part 10 is l2'which is longer than the shell 10 and which is sufliciently larger to permit the cement or other binding material 13 to form a layer between-the two shellsand this cement binder also binds the shells 10 and 12 to the support- The shell 12- has on its inner wall barbs or shoulders 12 and 12 which are adapted to engage similar barbs or shoulders 12 and 12 on the hanger 14 and as shown in Fig. 3, the barbs are not annular so that the hanger can be inserted in the shell 12 with the barbs 14" and 14 out of register with the barbs 12 and 12 and then by turning the parts in relation to each other the barbsor shoulders are brought into locking contact in which position they are held by the binder which is then poured into the shell and around the hanger. The shell 12 merges in an inclined spreading etticoat 15 which is arranged within the petticoat 11 and preferably at a steeper angle so as to prevent rain from driving inward into contact with the shell or body 16 which is preferably thicker than the shells 10 and 12, and is separated from the shell 12-.by a layer of cement or other binder. As is usual in such structures the shells are separated and bound together by cement, glaze or other binder, and

the surfaces which receive the binder are roughened so as to form a good bond.

The body or shell 16 has preferably a cir- I cumferentialgroove 17 to receive a binding.

is held to the insulator by a clamp 20, but it will be understood that the means for fasinvention and it can be secured in any suitable or convenient way. For instance, in Fig. 4 I have shown the insulator or shell 16' provided with a transverse recess or socket 21*which has an annular opening 22 to the outer end surface of the shell, the restricted opening being of a size to permit the wire 19 to be pushed into the soc 'et21 and a split ring 23or other similar means can be placed around the wire or within the socket to prevent accidental displacement of the wire. This matter is shown and covered in my aptening the wire has nothing to do with this lication for Letters Patent of the United tates, No. 328,015, filed July 27, 1906.

The several petticoats 11 and 15 and there can be more or less of them if desired, are at points above the wire turned up or otherwise formed into flanges 24 which thus serve to prevent the water drippings from' the petticoats from dropping upon the wire 19,

' 1906, might be substituted for the hanger shown. The essential thing is to provide means for fastening a wire to the underside of the insulator and to arrange the petticoats in substantially the manner shown, so that they shall serve as a protection for that portion of the insulator which carried the wire 19.

It will be seen that the hanging insulator which I have shown and described, carries the wire in sucha manner that if it does accidentally break loose, as wires will some,- times, it does not fall upon a cross bar where the current will be grounded or the cross bar burned off. Another advantage is that where the wires are carried on the top of the insulators in case of rain more or less of the current is dissipated andcarried off with the water, whereas if the wire is carried as shown in this invention, the Water cannot come in contact with it, as the. wire is perfectly shielded from water.

Having thus fully described my invention,

I claim as new and desire to secure by Letters Patent,

1. A hanging insulator comprising an inner shell adapted to receive a hanger and merging into an outer s reading petticoat, a second shell receiving t e lower end of the hanger and fitting over the inner shell, the second shell merging into a second inner petticoat, and a body portion fitting on over the second shell and having a wire receiving means at its lower end.

2. A hanging insulator comprising an inner shell adapted to receive a hanger, said shell merging into an outer spreading petticoat, a second shell fitting on over the innershell and merging into a second petticoat lying inside the first one at a different angle, and a central body ortion fitting on over the second shell and aving means at its lower end to support a wire.

3. A hanging insulator comprising a series of shells nesting one within the other and ada ted to be supported on a hanger, the shels being separated from each other by cement and merging at their upper parts into downwardly spreading petticoats, and an inner body portion secured to the inner shelll and adapted to carry a wire at its lower 6TH 4. A hanging insulator com )rising s preading petticoats of different pitc arranged one within the other, said petticoats merging into central shell or hub portions, a hanger to support said shell or hub portions, an inner body portion having means for supporting a wire at its lower end, and layers of cement separating the several aforesaid parts.

WALTER G. CLARK. Witnesses: v

WARREN B. HUToHINsoN,

FRANK L. SrUBBs.

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