US2712567A - Electric fence insulator - Google Patents

Description

July 5, 1955 s. P. CALTRIDER 2,712,567

ELECTRIC FENCE INSULATOR Filed April 23, 1955 INVENTOR 614M054 f? (34 ATE/Z75 -5' ATTORNEY aa e 1; Claim. (6i. 174 663.)

This invention relates to an electric fence insulator, and has for one of its objects the production of a simple and etficient insulator which is so constructed as to facilitate the dropping of a slack fence wire into the wire receiving channel or slot thereof, and to hold the wire against accidental displacement after the wire has been fitted into the channel or slot.

A further object of this invention is the production of a simple and efiicient electric wire fence insulator having a transversely extending sepentine wire receiving slot or channel formed in the top face thereof to facilitate the insertion of a wire in the slot or channel thereof, and to prevent the accidental displacement of the wire after it has been placed within the slot or channel.

Other objects and advantages of the present invention will appear throughout the following specification and claim.

In the drawing:

Figure 1 is a top plan view of the insulator, the supporting post being shown in transverse section;

Figure 2 is a side elevational view thereof;

Figure 3 is a horizontal sectional view taken on line 3-3 of Figure 2;

Figure 4 is a longitudinal sectional view taken on line 44 of Figure 1;

Figure 5 is a transverse sectional view taken on line 55 of Figure 2;

Figure 6 is a transverse sectional view taken on line 6-6 of Figure 2.

By referring to the drawing in detail it will be seen that 10 designates the insulator which is preferably formed of porcelain or other insulating material. The insulator 10 is provided with a tapering inner end 11 having a vertical notch 12 formed at the inner extremity thereof. The insulator 14) is preferably circular in cross section and preferably is provided with an annular channel 13 formed near its outer end.

An anchoring bolt 14 extends longitudinally through the center of the insulator iii, and carries an eye 15 at its inner end for fitting over the supporting post 16, which post preferably is circular in cross section, as shown. A thumb nut 17 is threaded upon the outer end of the bolt 14 and abuts the outer end of the insulator 10 to draw the eye 15 into the channel 12 and to thereby lengthen the eye 15 around the post 16. The vertical notch 12 preferably is dished inwardly, as at 1%, near its center to provide a sufiicient inward movement of the eye 15 to clamp the insulator it; tightly against the post, as shown in Figure 4.

A transversely extending serpentine slot 18 is formed in the top of the insulator 1d, comprising a pair of spaced longitudinal portions 19 and an intermediate rearwardly extending substantially V-shaped portion 20, generally in Patent the form of a numeral 3. his slot 1.8 defines a rearwardly extending central lip 21 and two outwardly extending spaced lips 22 and 23 and also a transverse bottom portion 24. The lip 21 extends in an opposite direction to the lips 22 and .13, as shown. The outwardly extending lips 22 and 23 extend laterally of the rearwardly extending center lip 21 in spaced relation thereto. The area constituting the ti-shaped portion is provided with a beveled wall 25 which is inwardly inclined in the direction of the lip 21. Because of this serpentine slot 1 .3, a fence wire 26 may be dropped transversely across the insulator 1t) and will fall into the slot or be easily pushed or moved into the slot. The beveled wall 25 will direct the wire 26 down into the slot 13 as the slack wire 2-6 falls across slot 13 in a manner as shown in dotted lines in Figure 1. When the Wire 26 is tightened, the wire will extend transversely across the insulator 10 in contact with one end wall of the slot 18 or the bottom thereof, in a manner as shown in the drawing. Because of the irregular shape of the slot 13 and the arrangement of the lips 21 and 22, the Wire 26 will not accidentally jump out of or become accidentally detached from the insulator. it should be noted that the lip 21 extends into the V-shaped portion 2i) and inwardly of the parallel lips, to hold the wire 26 against accidental removal. As shown, the terminal of the central lip 21 extends into the ii-shaped portion, and the two outwardly extending lips 22 and 23 extend forwardly of the terminal of the central lip 21 thereby defining an irregular slot to receive an electric fence wire.

Having described the invention, what I claim as new is:

An insulator specially constructed to retain a slack wire of an electric fence comprising an insulated body, said body haivng a slot defining spaced longitudinal portions and an intermediate rearwardly extending substantially V-shaped portion generally in the form of a numeral 3, said slot also defining a rearwardly extending central lip and two outwardly extending spaced lips and a transverse bottom portion, said outwardly extending lips extending laterally of said central rearwardly extending lip in spaced relation thereto, and said central rearwardly extending lip extending in an opposite direction to said outwardly extending lips and inwardly between said outwardly extending lips, said slot constituting the V-shaped portion having a beveled wall inclining in the direction of said central lip, said slot being serpentine in form and extending transversely of said body, and said beveled wall being adapted to direct a slack fence wire into said slot when a slack fence wire is dropped transversely across the body above the slot, the slot in the form of a numeral 3 being adapted to prevent the fence wire from jumping out of the slot even when the wire is relatively slack which is the normal condition of electric fence wires as distinguished from other fence wires.

References fitted in the file of this patent UNITED STATES PATENTS 94,037 Scott Aug. 24, 1869 874,445 Shears Dec. 24, 1907 1,595,653 Gammon et al Aug. 10, 1926 1,718,259 Scott et al. June 25, 1929 1,721,657 Cutter July 23, 1929 2,386,129 Maack Oct. 2, 1945 FOREIGN PATENTS 653,428 Great Britain May 16, 1951

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