US 2108504 A
Description (OCR text may contain errors)
Feb. 15, 193.8. v E, B, NOWOSlELsKl 2,108,504
ELECTRICAL CABLE CONNECTER INVENTOR.
. UZVI/V w 9 A .F 5 f. w l wf Z 4\\ W Patented Feb. 15, 193s PATENT OFFICE,
ELECTRICAL CABLE CONNECTERJ Edward B. Nowosielski, Sidney, N. Y., assigner to BendixAviation Corporation, South Bend, Ind.,a corporation of Delaware Application 'April 11, 1935, Serial No. 15,835y
The present invention relates to an electrical cable connecter and more particularly-to a solderless type of connecter adapted for either high or low tension solid or stranded conductors.
It is an object of the present invention to provide a novel cable connecterwhich provides a secure vibration-proof anchorage for the cable with a good electrical connection between the conductor and the cooperating terminal.
Another object is to provide such a-device in` which the connecter may serve-to anchor th cable in operative position.
A further object is to provide such a device which is readily attached and anchored without special tools of any kind.
A further object is t provide such a device which does not require the application of heat such as would be liable to deteriorate the insulation of the cable adjacent the anchorage.
Another object is to provide such a device which does not injure the conductor of the'cable or the strands thereof in case the conductor is stranded.
Another object is to provide such a device which' can be readily removed when required without special tools Vand then may be used over again if desired.
\ Another object is to provide such a device which is simple and economical to manufacture.
Further objects and advantages will be apparent from the following description taken in connection with the accompanying drawing in which:
Fig. 1 is an end view of a preferred embodiment terminal attachment,` parts being broken away` to illustrate the structure; and
Fig. 5 is a perspective view of the connecter mounted on the end of a cable.
Referring first to Figs. 1 and 2 of the drawing, lt will be seen that the connecter is in the form of a disc or plate I of suitable conducting material having a central aperture 2A and a pair of tapered slots or notches 3 and t extending obliquely inward from the periphery of the disc I so as to be laterallyvoifset or spaced sidewise from the central aperture 2. -f
'I'he slots v3 and I extend suiciently toward the opposite edges of the disc so that the remaining material 5 and 6 4of' the disc is deform-` able to permit closure of the slots but has such rigidity to securely clamp a conductor placed therein. y
Referring now more particularly to Figs. 3, 4 and 5, there is illustrated a cable 'l having a 5 stranded conductor 8 to be anchored to the connecter disc I. As there illustrated, this anchorage is -effected by passing the conductor 8 through the central opening 2 of thevdisc and then dividing the strands of the conductor into 10 two groups 9 and II which are bent outward and backward and inserted in the slots 3 and Il of the connecter. The slots are thereupon closed to clamp the portions ofthe conductor therein by any suitable means such as a pair of pliers, 15 whereby the conductor is securely anchored in the connecter.
As illustrated in Fig. 4, the connecter I is arranged to extend peripherally outward somewhat beyond the outer surface of the cable l, and is 20 used to anchor the cable in the terminal tting. As here shown, the ,terminal fitting comprises a cylindrical fitting I2 with an insulating bushing or quill I0 therein surrounding the cooperating fixed terminal I3; said tting being threaded to 25' receive a gland I4. A suitable sleeve I5 of insulating material on the end of the cable 1 is clamped against the connecter I by the gland I4 either directly or through the intermediary of a lip on the end of a shield i6 for cable 1. Sleeve 30 IS engages the extending periphery of the disc I to force the bent-back portions of the conductor 8 into intimate contact with the cooperating terminal member I3.
The connecter I may be readily removed by 35 pryingopen slots 3 and 4 by any suitable means such as a screw driver, whereupon the connecter may be re-used if desired. However, since the conductor 8 has been bent reversely prior to its insertion in the slots 3 andd, it will be readily 40 appreciated that accidental dislodgment of the connecter is impossible.
Although a single embodiment of the inven-v tion has been shown and described in detail, it will be understood that other embodiments are 45 possible and that various changes may be made in the form and design thereof without departing from the spirit of the invention as dened in the claims appended hereto.
What is claimed is:
l. An electrical cable terminal member in the form of a plate having a central opening for receiving a stranded cable conductor, and a plurality of notches extending inwardly from the edges of the plate for receiving groups of strands of said conductor, said notches being so tapered as to be smaller at their inner ends than at their mouths, the material of said plate being deformable by lateral pressure thereon `to close the notches on the strands of the conductor and clamp the same therein.
2. A terminal member for a stranded electrical cable in the form of a disc of conducting material having a central opening for receiving a stranded conductor of a cable, and a plurality of slots extending inwardly from the periphery of the disc for receiving backwardly bent portions of said conductor, said slots being so tapered as to be smaller at their inner ends than at their mouths, said disc being'deformable to permit closure of the slots on said portions of the conductor, said disc being suiiiciently resistive to deformation to securely clamp the conductor in said slots.
3. In combination with a stranded electrical conductor, an anchoring terminal member therefor in the form of a centrally apertured disc,
said conductor being threaded through said aperture, said disc having notches in the periphery thereof so tapered as to be smaller at their inner ends than at their mouths, the strands of said conductor being bent back and into said notches, said notches being closed on said strands to clamp them tightly therein.
4. In combination with an electrical conductor having an insulating sheath, an anchoring terminal member for the conductor in the form of a centrally apertured disc, said conductor being threaded through said aperture with the plane of the disc substantially normal vto th axis of the conductor, said disc having a notch extending inwardly from the periphery thereof. the conductor being bent back and into said notch and clamped tightly therein, said disc having a greater diameter than said sheath, and anchoring means for the conductor including a socket receiving the sheath and means for clamping the disc therein.
EDWARD B. NOWOSIELSKI.