US1950616A - Insulator - Google Patents

Description

March 135 1934.

W. D. KYLE 4 1,950,616

INSULATOR Filed July 27, 1928 l* Patented Mar. 13, 1934 PATENT OFFICE INSULA'IOR l William D. Kyle, Milwaukee9 Wis., assigner9 by mesne assignments, to Line Material Company, South Milwaukee, Wis.,9 a corporation of Dela- Ware Application July 2'5", 192%, Serial No. 295,63@l

i?, Claims.

'I'his invention relates particularly to means r mounting a conductor wire from an insula- It is an object of this invention to provide an insulator having a substantially dish-shaped washer member which permits a conductor to be inserted into its opening from one direction aut restrains movement in the opposite direc- Another object of this invention resides in the provision of an insulator having means incorporated therein whereby a conductor may be atl tached to thel insulator by merely inserting it into an. aperture in said means. A nd avfurther object of this invention resides in the provision of an insulator of the character described having means whereby one or more conductors may be attached to the insulator by inserting them into apertures in said means and having means for electrically connecting the conductors `attached to the insulator.

With the above and other objects in view which will appear as the description proceeds, myv invention resides in the novel construction.,

combination and arrangement of parts substantially as hereinafter described and more particularly deiined by the appended claims, it being understood that such changes in the precise embodiment of the hereindisciosed invention may be made as Acome within thescope of the claims.

In the accompanying drawing, I have illustrated several complete examples of the physical embodiment of my invention constructed according to the best modes I have so far devised for the practical application of the principles thereof, and in which:

Figure 1 is an elevational view of an insulator embodying my invention with parts broken away and in section;

Figure 2 is a view similar to Figure l illusgating 4a slightly modified form of my invenon; Figure 3 lis a perspective view of the dishshaped washer removed from' the insulator and with a conductor in position;

Figure 4 isa view similar to Figure 1 illusvtrating another modied form of my invention;

Figure 5 is a view showing still anothermod'.-

'50 edform of my invention, and

Figure 6 is a view taken through Figure 5 on the plane of the line 6-6.

Referring now more particularly to the accompanying drawing, in which like numerals designate like parts throughout the several views, 5 represents the body of an insulator which is preferably formed of porcelain and from which an attaching screw extends to facilitate its attachment to any suitable support. A transverse bore or opening '7 having one end 6o flared outwardh, as at 8, extends through the insulator and positioned in axial alignment with the bore and moulded or otherwise secured in the porcelain of the insulator is a dish-shaped washer member 9. The washer member 9 has a central aperture 10 from which'a plurality of radially extending slots 11 radiate to divide the washer member into a plurality of springr fingers 12 which, by reason of the substantially dish-shaped formation of the washer member, permit the insertion of a conductor wire 13 from the ilared end of the bore 7, the points of the ngers biting into the conductor when retrograde movement is attempted. Thus it will ybe seen that to connect the conductor with the insulator it is only necessary to force the same into the central aperture 10 of the washer member moving its spring ngers 12 in the direction of the applied force to perm't the conductor to pass 8o therebetween, the resiliency of the fingers causing them to securely grip the conductor when pressure is released.

The modied construction illustrated in Figure2 is generally the same as that described in 85 connection with Figure 1 except that the washer member 9 is not moulded or otherwise secured in the porcelain of the insulator but is separable therefrom, being positioned in a longitudinal slot 14 extending transversely across the bore '7 and 90 opening to the outer end of the insulator. This construction permits ready renewal of the dishshaped washer members, as will be readily apparent.

vIn Figure l4, the transverse bore 'I is supple- 95 mented by a longitudinal bore 1'7 to accommodate a pair of conductor wires 13 and each bore or opening has a dish-shaped washer member 15 moulded or otherwise secured in its walls, the washer members being stamped from a single piece ci metal and having-their adjacent peripheries connected by a bridging strip 16 which is bent to position the washer members at substantially right angles with respect to each other. The pair oi conductor wires are electrically con- 100 nected through the washer members by having their ends 18 stripped of insulation and received in the suitably reduced apertures of the washer members.

That form of my invention illustrated in Figconductor inserted between th prongs against detachment.

From the foregoin nection with th be readily app to which an e points of the g description, taken in cone accompanying drawing, it will arent to those skilled in the art ntion of this character apperg a conductor wire usual necessity of tytwo or more conducthereto which obviates the the wire and in which tors may be electrically co What I claim as my inven 1. In a device o1' the char prising an insulator havin imbedded in said insulato acter described comg a bore and means r and having a part -shaped washer drical member 19 nding transversely ng secured therein of the bore moulded 'Ihe cylindrical rcumferentially to divide said part into resilient lingers for gripping a wire inserted into the bore, said means permitting the insertion of the wire in one longitudinal direction but automatically restricting movement thereof in the other direction.

2. In combination with an insulator adapted to have an electric wire connected therewith, said insulator having a bore into which the wire is longitudinally insertable, a centrally apertured spring member embedded in the insulator in a position across the bore to substantially close the same, said spring member having slots extended radially from its central aperture to divide the same into a plurality of spring biting into the wire.

WILLIAM D. KYLE.

Images