US463955A

US463955A - Electric-wire insulator

Info

Publication number: US463955A
Authority: US
Publication date: 1891-11-24
Anticipated expiration: 1908-11-24

Description

(No Model.)

H. F; NEWELL.

ELEGTRIG WIRE INSULATOR.

Patented Nov. 24, 1891.

MMMMMMM UNITED STATES PATENT OFFICE.

IIIRAM F. NEXVELL, OF MANCHESTER, VIRGINIA.

ELECTRlC-WIRE INSULATOR.

SPECIFICATION forming part of Letters Patent No. 463355, dated November 24, 1891.

Application filed February 28, 1891 Serial No. 3831226. (No model.)

To all whom, it may cancer/t;

Be it known that I, HIRAM F. NEWELL, of Manchester, in the county of Chesterfield and State of Virginia, have invented certain new and useful Improvements in Insulators for Electric iVires; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

This invention relates to certain improvements in insulators for electric Wires.

The object of the invention is to provide an improved insulator exceedingly cheap, durable, and simple in Construction, which will firmly and separately hold several wires Without fastening-wires or other means, will prevent longitudinal movement of the wires, and so constructed thatthe wires can be easily and quickly attached or detached.

These obj ects are accomplished by and this invention consists in certain novel features of construction and in combinations of parts more fully and particularly set forth hereinafter.

Referring to the accompanying drawings, Figure 1 is a top plan of the insulator. Fig. 2 is a side elevation looking in the direction of the left-hand arrow of Fig. 1. Fig. 3 is a side elevation looking in the direction of the bottom arrow of Fig. 1. Fig& is a cross-section taken in the plane of line :u x, Fig. 1.

This insulator is preferably formed integral of suitable non-conducting material, and consists of the main or body portion a, preferably cylindrical and dome-shaped or rounded on top, and provided with the hollow base and suitably-forned socket b, by means of which the insulator is firmly secured on its support. The body at a suitable distance from its top is provided With a peripheral annular groove d, and beneath said groove, on diametrically-opposite sides, the insulator is provided with horizontally and laterally projecting portions c c. From the two onter corners of each enlarged lateral portion c arms e e extend up, each arm being provided With a vertical transverse groove or notch f, extending down from the outer end of its top edge, and with a horizontal groove or notch g at the lower end of its inner side edge at the foot of the arm e. Each pair of arms e e is loeated a suitable distance apart. A pair of downwardly-inclined or overhanging arms or flanges h h are located on diametrically-opposite sides of the insulator between the lateral enlargements and below the horizontal plane of the wire-holding grooves or notches f and g. A wire can be firnly held and supported by this insulator by resting the same in the top grooves ff of the two arms e e on one side of the insulator-body and catching the portion of the wire between said grooves beneath the fiange h on that side, thereby supporting the wire and firnly holding it against longitudinal, lateral, downward, or upward strain. Instead of passing the Wire through grooves f it can pass through grooves g around the bases of arms e c to and beneath the flange h, or the wire can be secured by having a hitch or loop taken in the same and passed around the bodyso as to rest in groove (Z. It is evident that several wires, either parallel or extending in opposite or different directions, can be separately supported by this insulator. The lateral arms and grooves so hold the wire that if broken between two poles it will not sag` and drop between the other poles. The number of insulators heretofore necessary is reduced. The supportingarms are stron gly braced and strengthened to withstand the strain and weight of the wires, and the holding grooves and arms are so arranged and formed that the Wires can be easily and quickly secured or removed by the linemen.

hat I claim is- 1. The insulator consisting of the body having` the socket in its under side and annular groove around its upper portion, the separated grooved arms rigid with the body and extending upwardly beside the upper portion of the body, and theintermediate downward- 1y-proj ecting arms, substantially as described.

2. The insnlator consisting` of the body, arms on opposite sides thereof and rigid therewith and extending up beside the upper portion of the body and having` wire-holding grooves or notches, and the intermediate downwardly-projecting arm from the side of the body, substantially as described.

TOO

ing two dianetricaHy-opposte lateral enlargenents, a pair of arms extending up from eaeh enlargement provided with transverse grooves in their top edges and nner sdes, and downwardly-inelined lateral arms between said enlargements, substantiaily as described.

In testinony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

IHRAM F. NE\VELL.

\Vitnesses:

S. M. PERDUE, R. L. TAMLIN.