US520367A

US520367A - Insulator

Info

Publication number: US520367A
Authority: US
Publication date: 1894-05-22
Anticipated expiration: 1911-05-22

Description

(.No Model.)

F. M. LOCKE.

INSULATOR. v

Patented May 22, 1894.

f c d i, d C :1 /c w ATTORNEYS.

. UNITEDE STATES PATENT OFFICE.

FRED M. LOQKE, or VICTOR, ASSIGNOR or ON ALF TO GEORGE A. PADDOOK, OF AUBURN, AND WILLARD 0. PAGE, or PALMYRA, NEW

YORK.

VINISULATOR.

' SPECIFICATION forming part of Letters Patent No. 520,367, dated May 22,1894. I

Application filedDecember 4. 1893. Serial No. 492,733. (No model.) I

To all whom it may concern:

Beit known that I, FRED M. LOOKE, of Victor, in the county of Ontario, in the State of New York, have invented new and useful Improvements in Insulators, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to the construction of insulators adapted to be mounted upon pins secured to the cross arms of poles, having partinnlar reference to insulating wires over which electricity is adapted to pass.

Ihave learned from experience that electric currents often creep through moisture, dust or other matter on the surface of an insulator part way, that is to the edge of the first petticoat, and then jump through the air to the wet cross arm or other points, and my object is to force the current over the surface,

if it escape-at all.

. My further object is to produce such an insulating hood so constructed that it may be .used to support one or more wires, and, at the same time, providing it with a multiplicity of petticoats'so constructed as to prevent the current from escaping from one wire to another, or from the wire to the pin itself without first traveling the surface of the hood, cheap and durable in construction and of great utility. It may also be used in place of double insulators for transposing wires, and to that end my invention consists in'the several new and novel features of construction and combination of parts hereinafter" described and which are specifically set forth in the claim hereunto annexed. It is construct-. ed as follows, reference being had to the accompanying drawings, in which- Figure 1, is a vertical section of the insulating hood mounted on a supporting pin cross arm,

showing the contour of the hood Figs.2and 3 are views of supporting pins provided with j di 'erent means for securing them to the upon which'the hood is adapted to be mounted, Fig. 2 showing the hood in dotted lines.

A- is the pin constructed of anyform or I design desired, adapted to be secured to the cross arm in any ordinary and well-known way, and having its upper end threaded or provided with other means by which the insulating head --B- is secured.

The insulator is provided with grooves and -.a.' in which the electric wires are adapted to rest and be supported, and care petticoats adjacent to.the wires upon either side thereof, and in front of thesame are petticoats of larger skirts or diameter d-, which serve the purpose of placing a dielectric in the path and prevent the es cape or jumping of the current from one wire to another, or from the wire to the insulating pin.

with a multiplicity of petticoats have been eretofore constructed; but this I do not claim.

What I claim is- 1 An insulator. having annular grooves, horizontally extending petticoats adjacent thereto, and auxiliary petticoats having a greater circumference adjacent thereto for the purpose of preventing the current from escaping from one line to another, as set forth.

In witness whereof I have hereunto set'my hand this 25th day of November, 1893.

FRED M. LOOKE.

In presence of PETER V. KEEFE, Z. O. CURTICE.

I am aware that insulating hoods provided