US2519694A

US2519694A - Insulator supporting bracket

Info

Publication number: US2519694A
Application number: US753833A
Authority: US
Inventors: Leon J Olivier
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-06-11
Filing date: 1947-06-11
Publication date: 1950-08-22
Anticipated expiration: 1967-08-22

Description

. Aug. 22, 1950 L. J. OLIVIER 2,519,694

INSULATOR SUPPORTING BRACKET Filed June 11, 1947 2 Sheets-Sheet 1 INVENTOR KW} W 21 Z, WWPM A 1950 L. J. OLIVIER 2,519,694

INSULATOR SUPPORTING BRACKET Filed June 11, 1947 2 Sheets-Sheet 2 2, 67 WWYLW W Patented Aug. 22, 1950 UNITED STATES PATENT OFFICE INSULATOR SUPPORTING BRACKET Leon J. Olivier, New Orleans, La. I I

Application June 11, 1947, Serial No. 753,833

3 Claims. 1

This invention pertains to an improved form of bracket or support for insulators, and more particularly, to an improved form of a wire stringing, sagging, and supporting bracket.

In my Patent No. 2,302,883 entitled Method of Stringing and sagging Wires and Apparatus for Use Therein, I have shown a bracket of the general type involved. The bracket of the present invention provides a new and improved form of pivot support for the insulator pin.

In employing a bracket of the type herein involved, see particularly Figure 6 of the drawings, an insulator is loosely mounted on a spindle or bolt which is adapted, in an outwardly or horizontally extending position, to receive a cable or wire and to permit the wire to be uniformly sagged between poles. After the proper sagging has been efieoted, the wire may be secured to the insulator in the manner shown and the insulator is moved to a detachably looked vertical or angular position, such as shown in Figure 2 or the drawings. To remove the wire, the procedure is reversed.

In a bracket of this type, a suitable form of pivot mounting for the insulator supporting spindie or pin must be provided such that the insulator may be moved from one angular position to another, that the spindle may be detachably locked in its vertical position with respect to the bracket, that the spindle may be released from its locked vertical position and moved to a horizontal position, and that the spindle may be securely supported in the horizontal position when a wire or cable is being mounted on the insulator or removed therefrom.

It has thus been an object of my invention to provide a new and improved form of insulator bracket.

A further object has been to provide an insulator bracket having a simplified and improved type of pivot mounting for an insulator supporting pin or spindle.

A still fru'ther object of my invention has been to provide a less expensive and simplified form of bracket of the type involved which will provide for different angular positioning of an insulator pin or spindle.

These and other objects of my invention will appear to those skilled in the art from the drawings, specification and claims.

In the drawings, Figure 1 is a side view in elevation of a bracket employing my invention. A spool type of insulator is shown rotatably mounted on the bracket, and different angular positions of the insulator 25 and its associated supporting pin or spindle 20 have been indicated by A, B, and C. The locked vertical position is indicated by the dotted lines of A, an unlatched intermediate position has been illustrated by the dotted lines of B, and a horizontal wire mounting or (removing position is shown by the full lines o Figure 2 is a side view in elevation showing the spindle at the position A of Figure 1; I

Figure 3 is a front sectional view taken along. the line III-III of Figure 2;

Figure 3A is a side View of a may be employed in connection of my invention.

Figure 4 is a top plan view of the bracket of Figures 1 and 2;

Figure 5 is a horizontal sectional view taken along the line V-V of Figure 2;

Figure 6 is a perspective view in side elevation of the bracket of my invention and showing the cotter pin that: with the bracket.

wire receiving position;

Figure 7 is a perspective view in elevation of a multiple insulator supporting bracket employmg my invention.

Referring particularly to Figures 1 to 6, inclusive, the bracket of my present invention has a base or normally vertically extending back member it! that may be provided with an opening H and suitable pressed out portions [2 for receiving a mounting bolt. A pair of outwardly and normally horizontally-extending spaced-apart supports [3 and H provide upper and lower arm members for an insulator supporting spindle, pin, or bolt 20.

The bracket of my present invention is similar in many respects to the bracket disclosed by the aforementioned patent. It includes a base or back member l9 that may be and preferably is provided with a bolt-receiving aperture II and outwardly pressed lugs l2 for engaging a head of a bolt extending through the aperture II. The base It] carries a pair of insulator-supporting arms l3 and ii which extend outwardly therefrom in parallel spaced relationship. When the bracket is in use the base 10 normally extends vertically and the arms l3 and H extend horizontally, with the arm 53 located vertically above the arm 17. The arms are so spaced that the insulator supported by the bracket is normally located between them resting on the arm 11.

The upper arm i3 is similar in structural details to the corresponding arm of the bracket disclosed by said Patent 2,302,883. The outer end thereof is provided with a spindle receiving slot l6, thus bifurcating the free end of the arm and forming spaced prongs M which extend in parallel relationship. Their outer ends are shaped so as to form a keeper for the head of an insulator pin or spindle 263 which forms a component part of the bracket. This is accomplished by so bending the outer end of each prong l4 that it extends upwardly, but Slightly backwardly and terminates in a forwardly inclined upwardly projecting portion l5.

The slot ill is slightly wider than the diameter of the spindle 2t and the inner end thereof is curved to correspond to the curvature of the cylindrical surface of the spindle engaged by it. The upwardly turned ends of the prongs M are adapted to engage the rectangular head .22 of the spindle 26 when the spindle is in place within theslot l6 and the head portion 22 thereof bridges and rests on the prongs it. When the spindle is in this position it is latched or locked to the arm l3, by the latch and keeper relationship of the head 22 and the up-turned portions of the prongs E4.

Whilethe lower arm ll of my improved bracket corresponds in function to that of the corresponding arm of the bracket disclosed by m above mentioned patent, it is of simpler form, requires less metal in its formation and contributes to simplification of the bracket in other respects. As shown the arm I7 is provided with a spindlereceiving aperture it which is located vertically below the slot i6, is aligned therewith and is adapted to cooperate with that aperture in positioning the spindle 29 when the spindle is in its normal upright position. The arm if is provided with, or so formed as to provide a downwardly eXtending, substantially U shaped loop or spindle-receiving saddle E8, the upper surface of which is a continuation of the upper surface of the major portion of the arm but is looped downwardly so as to form a concave spindle-engaging surface which extends horizontally and longitudinally of the arm and also below the major portion of the arm a distance substantially equal to the diameter of the shank portion of the spindle 20.

The relationship of the saddle l8 to the major portion of the arm ll is such that the aperture I9 is, in effect, transformed into a slot, although the inner edge it of the downwardly off-set portion or saddle it constitutes a bounding edge for the aperture. It will be noted that this edge iii of the aperture extends transversely across the arm, is looped below the upper surface of the arm but, nevertheless, forms a continuation of the remaining portion of the edge of the aperture H], which is curved to conform to the curvature of the cylindrical portion of the spindle 20 and is located immediately below and in alignment with the correspondingly curved portion of the edge of the slot I6.

As shown in the drawings, the lower end of the spindle 20 extends through the aperture 19 and the spindle is loosely or pivotally secured to the arm I! by reason of the fact that a cotter pin extends through the portion, thereof located below that arm. An aperture extends diametrically through the lower portion of the spindle but is spaced from the lower end thereof, and a double hump cotter pin 2! is located therein. The cotter pin is of such length asto prevent the removal of the spindle from the arm [7 although the cotter pin is so located as to permit free movement of the spindle from the position A of Figure 1 through the position B to the position 4 C of that figure. In the last mentioned position the cotter pin 2| may engage the edge [8' of the saddle to position the spindle with relation to the saddle and a portion of the spindle, located between the pin 2! and the head 22, rests in the saddle, whereas the portion of the spindle between its normally lower end and the cotter pin rests against the lower face of the arm ll. When the spindle is so positioned it constitutes a cantilever support for the insulator carried by it and is held against lateral displacement by the lateral, upwardly sloped walls of the saddle 18.

In the normal or upright position of the spindle 2B the head portion 22 thereof is detachably latched to the upper arm is by the latch and keeper relationship between the head portion 22 and the upwardly turned ends of the prongs Id. In this position the spindle is held by the cooperation of the inner edge [8' of the saddle, the curved edge of the aperture 59, the curved edge of the slot J6 and the upwardly turned portions of the prongs it. To unlock the spindle from this position it is forced upwardly so that its head 22 moves upwardly beyond the upwardly and inturned portions of the prongs it. The relationship between the parts is such that during this upward movement the upwardly extending prongs are flexed to permit the head to slide past them.

It will be noted that the structure of the lower arm I! as heredisclosed makes it possible to employ aspindle so having a cylindrical shank portion from the head end to the opposite end thereof. Such spindles are cheaper and more effective in operation than spindles such as are shown in my aforementioned patent and to this extent my improved bracket contributes to a further simplification of the insulator bracket as a whole. It will also be apparent that the arrangement of the saddle i8 disclosed, provides a more rugged and stiffer structure than is disclosed by said patent, with the result that each insulator spindle when functioning as a cantilever as disclosed in Figure 6 is capable of sustaining a relatively heavy load without the danger of distorting the bracket or any portion thereof.

In Figure 7, I have shown a multiple insulator bracket embodying my invention wherein a plurality of pairs of spaced-apart arm members l3 and Il are positioned in a spaced-apart relationship along the base member Ill.

As shown particularly in Figures 1 and 2, the cotter pin 2! is positioned to extend through the spindle 2E, transversely of the bracket. The location of the pin 2i is preferably behind or to one side of the curved loop portion i8, and adjacent to such portion, in order that the spindle iiilfmay be raised and pivoted as indicated by the dot and dash lines of Figure l. The cotter pin 21, as shown by the position 0 of Figure 1, lies transversely. adjacent'to the bottom surface of the arm I! when the spindle 2!: is in its horizontally .ex-' tended position; it thus may serve to supplement the supporting action of the lower end of the spindle when the spin-dle is in its horizontal position.

Although for the purpose of illustrating my invention I have shown aparticular form of a bracket, it will be apparent to those skilled in the art that various subtractions'addi-tions and revisions may be made thereto without departing from its spirit and scope as indicated by the appendedclaims.

WhatI claim is:

1. An insulator-supporting bracket including a vertically extending base, upper and lower horizontall extending arms secured thereto and an insulator-supporting spindle pivotally connected to the lower of said arms and movable from a horizontal position to a vertical position in engagement with the upper arm to position the insulator carried thereb between said arms; characterized by said lower arm has a spindle-receiving aperture formed therein adjacent the free end thereof and is provided with a transversely extending downwardly looped, U-shaped saddle forming a closure for said aperture at the free end of the arm side thereof and having a concave spindle-engaging upper surface constituting a continuation of the upper surface of the major portion of said lower arm and extending horizontally longitudinally of said arm and downwardly below the major portion of said arm an amount substantially equal to the diameter of the portion of the spindle engaged thereby.

2. An insulator-supporting bracket including a vertically extending base, upper and lower horizontally extending arms secured thereto and an insulator-supporting spindle pivotally connected to the lower of said arms and movable from an extended horizontal position to a vertical position in engagement with both the lower and upper arms to position the insulator carried by said spindle between said arms; characterized by that Said lower arm has a spindle-receiving aperture formed therein intermediate the ends thereof and is provided with a transversel extending, downwardly looped U-shaped saddle constituting an extension of said arm and having a concave spindle-receiving upper surface forming a continuation of the upper surface of the major portion 6. of said arm, extending longitudinally of said arm and below the major portion thereof a distance substantially equal to the diameter of th portion of said spindle engaged thereby.

3. An insulator support bracket including a base portion, upper and lower arms formed integrally therewith and extending at right angles thereto and an insulator-supporting spindle movably connected to the lower of said arms and movable from a horizontal position longitudinally of such arm to an upright position in engagement with both the lower and upper arms, wherein the insulator carried thereby is located between said arms; characterized by that said lower arm has a spindle-receiving aperture formed therein in= termediate the ends and sides thereof and is provided with a downwardly off-set, transversely extending portion located immediately adjacent said aperture having a concave spindle-receiving sur face forming a continuation of the upper surface of the major portion of the bracket and extending below the major portion of said arm a distance substantially equal to the diameter of said spindle, with the inner edge of said ofi-set portion constituting a downwardly looped portion of the edge of said aperture.

LEON J. OLIVIER.

REFERENCES CITED UNITED STATES PATENTS Name Date Olivier Nov. 24, 1942 Number