US1579050A - Wire connection for electric plugs - Google Patents

Description

March 30 O. ABBADINI WIRE CONNECTION FOR ELECTRIC PLUGS Filed NOV. 11, 1922 gn'ucufoz 0. ii& $01272 Z WNM Patented Mar 30, 19 26.

ononmo 'AJBBADINI, or FAIRBANK, rnmvsnvanm.

wmn CONNECTION roa nnncrarc rimes.

Application filed November 11, 1922, Serial No. 600,830.

To all whom it may concern:

Be it known that I, Ononnro Aaannnv a citizen of the United States, residing at Fairbank, in the county of Fayette and State of Pennsylvania, have invented certain new and useful Improvements in Wire Connections-for Electric Plugs; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art. to which it appertains to make and use the same.

This invention has relation'to a connec-.

tor for electric wires, which will admit of the wire 'being quickly connected and readily disconnected as may be required, and which will avoid torsional strain as provision is had for a relative turning of the parts while at the same time maintaining firm electric, connection.

Specifically considered, the invention relates to means whereby an electric wire may be connected to'a plug which cooperates with a socket, said plug .being required to be rotated when coupling or uncoupling the same when connecting or disconnect-f 'ing the wlre.

The invention provides a connection which operates by a snap action and which is free to turn, whereby to prevent any torsional strain 'on the wire ,or joint.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

While the drawings illustrate an embodiment of the invention it is to be understood that in adapting'the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the nature of the invention.

Referring to the accompanying drawings .forming a part of the application,

Figure 1 is a detail view of an electric wire connection embodying the inventlon,

the parts being separated,

Figure 2 is an enlarged sectional detail,

the parts being connected,

Fi re 3 is an end mem r,

' ification wherein the connection socket spring, and

' Figure 4 is a detail plan view of the Figure 5 IS a sectional detail of a modiis applied toadouble contact plug.

view of a coupling Corresponding and like parts I are referred to in the following description and designated in the several views of the drawings by like reference characters. a

The numeral 1 designates the usual plug of an electric wire connector, the same being provided at opposite sides with studs 2 for cooperation with the bayonet slots of a.

cooperating socket in a manner. well understood. Th1s plug may be of any insulatingmaterial and is provided with a contact 3 which may be single, as illustrated in Figures 1, and 2, or double, as indicated in Figure 4, accordingly as the plug is of the single or double contact type. A cap 4 is threaded to an end of the plug 1 and is apertured for the passage of the wire 5 to be connected to the plug 1.

In accordance with the present invention,

a stud 6 is integral with, riveted to or otherwise applied to the plug 1 and is in electric connection with the contact 3. A socket '7 is soldered or otherwise applied to the terminal of the wire 5, and 1s adapted to engage the stud 6 by a snap action. The stud 6 and co-acting socket 7 may be of any type or make common in the art of snap or separable fast-enings. For instance socket 7 has an entrance opening 7? for the ball of stud 6 and the socket contains a wire spring 8 having jaws 9 between which the ball of the stud 6 is adapted to be forced upon engagement and disengagement with the socket, the jaws 9- tending to assume'the position shown in Figure 4 so that they will contract about the stud inwardly of the head, to retain the stud as shown in Figures 2 and 5. The parts 6 and 7 ma be attached to the cooperating parts 1 an 5 in any preferred way and admit of the wire 5 being connected to the plug lby a snap action, or instantly disconnect-ed therefrom, the connection admitting of the plug 1 turning to effect coupling or uncoupling thereof without creating any torsion on the wire 5. As shown most clearly in Figure 2,

- the cap 1, besides protecting the joint, func-' tions to secure and prevent casual separation thereof, since the socket 7 is adapted to be clamped between the cap and the adjacent end of the plug 1. As hereinbe,

fore stated, Figures 1 and 2 show the inven--' tion applied to a single contact plug, whereas Figure 4 shows it applied to a double contact lug, the connectin means being substantially the same in eac instance.

I Whatis claimed is: I

vided with a contact, a stud applied to the 'plug and in electric connection with the contact thereof, an electric wire, a socket applied to the electric Wire and adaptedv to be coupled to said stud by a snap action and to relatively turn to prevent torsional strain on the Wire, and a cap receiving the wire and having screw thread connection with the plug and adapted to prevent casual separation of the socket from the stud.

2. In combination, an electric plug provided with a contact, a second contact applied to said plug and in electric connection with the first contact, an electric wire,

a contact applied to the electric wire and adapted to connect to the second contact for turning movement relative thereto to prevent torsional strain on the Wire, a cap through which the Wire passes, and said cap having supported connection with the plug and extended inwardly to overlap the lower surface of the second contact to. prevent casual separation of the secondv contact-s, said cap being turnable indepemlently of the contacts and wires.

In testimony whereof I afiix my signature.

ORGERIO ABBAD-INI.

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