US1977757A

US1977757A - Swivel connection for electric cords

Info

Publication number: US1977757A
Application number: US523588A
Authority: US
Inventors: Edward J Elsas
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-03-18
Filing date: 1931-03-18
Publication date: 1934-10-23
Anticipated expiration: 1951-10-23

Description

Oct. 23, 1934. ELSAS 1,977,757

SWIVEL CONNECTION FOR ELECTRIC coRDs \Filed March 18. 1951 6/3 A? m a 10 1/ 6Jl76 artozwu o.

Patented Oct. 23, 1934 v 1.97735?" I SWIVEL CONNECTIONFOR ELEGTRIC.

- I 1. CORDS; f j Ed w ard J. Elsas, Kansas 'City,]Kans. Application. Marchis, 1931, Serial No. 523,588. f 1 can; (di its-g am)" This invention relates ,to 'a swivel" connectio n for electric wires or cords, the primary object of the invention being to provide means whereby the electric wires or cords connected with telephones, lamps, irons, or other electric appliances,

will not become twisted or knotted while in use.

An important object of the invention is to provide a swivel for electric wires or cords, so constructed that the swivel will be out of the way and will not catch on the edges of the table, desk, or other surface on which the appliance is being used.

Another important object of the invention is to provide a swivel connection which will securely hold the ends of the wires together, without the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to the drawing:

Figure l is a longitudinal sectional view through a connection constructed in accordance with the invention.

Figure 2 is an enlarged elevational view of the swivel, the same being partly broken away.

Figure 3 is a sectional View taken on line 3-3 of Figure 1.

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

Figure 5 is a sectional view taken on line 5--5 of Figure 1.

Figure 6 is a perspective View showing the inner members of the connection of the device, as disconnected.

Figure 7 is a perspective view of the tubular body portion or casing.

Referring to the drawing in detail, the connector embodies an outer tubular body portion 5, which is of a diameter approximately the same as the electric cord with which the device is used. 1

As clearly shown by Figure 1 of the drawing, the body portion 5 which is formed of metal material to provide a conductor, is formed with slots 6, the portion of the body between the slots being depressed as at 7, providing a space into which the wire 8, of the electric current 9, is held and secured to the body portion -5.

The reference character 10 designates tongues which are formed by cutting the body and pressing a portion of the body inwardly, the tongues being designed to engage behind the annularshoulder 11, in such. a way as to permit jof rotar movem nt r the swivel 12, of which the shoulder forms apart, but at the same'time t prevent movement of the swivel 12,1ongitudinally of the body portion.

away portions extended longitudinally thereof, the cut away portions defining fingers 13 which are designed to be bent inwardly in a manner to strengthen the swivel. An opening 14 is formed near the inner ends of certain of the fingers 13, which opening is of a diameter to receive the exposed end 15 of the electric wire, forming a part of the current 16.

It might be further stated that when the exposed end 15 of the wire is positioned within this opening 14 and the fingers are bent inwardly, the wire is securely gripped between the fingers, and held within the opening against accidental displacement.

Positioned adjacent to the inner end of the swivel l2, and contacting therewith, is a plug 17 which is constructed of suitable insulating material. This plug 17 is formed with a central opening to receive the wire 18 of the cord 19, the wire being free of its insulation, so that it will make circuit with the metallic member 20 which in turn is rotatably mounted within the tubular inner member 21 in such a way that the member member is constructed, between the slot and the end of the tubular member, being bent inwardly as at 23, providing lateral openings for the reception of the wire 24 of the cord which is attached to one end of the swivel. In positioning the wire in the lateral openings, it will be seen that the wire is brought through one of the openings, over one end of the inwardly extended portion 23, and passed into the opposite opening.

The circuit between wires 18 and 2 will be made through the inner tubular member 21 and member 20, while the circuit between the wires 8 and 15 will be made through the body portion 5 and swivel 12.

From the foregoing it will be obvious that due to this construction, one end of the wire may swivel freely in such a way as to insure against the wire twisting or knotting while in use on electric appliances such as lamps, irons, or the like.

.65 As clearly shown by Figure 6 of the drawing,

the swivel 12- is provided with a plurality of cut as shown by Figure 1 of the drawing, in order 7 It might be further stated that the wires extending into the ends of the body portion, may be insulated from each other, by means of a suitable plastic insulating material, not shown.-

I claim: A swivel connection for electric wires, com-,

prising a tubular body portion, an insulating plug" Within the body portion, a tubular swivel fitted in one end of the body portion and having an annular shoulder formed on the inner end thereof, tongues extending inwardly from the body portion and engaging the. shoulder, securingthe' swivel to the body portion and holding the swivel against the insulating plug whereby the swivel may rotate within the body portion but is held against movement longitudinally of the body portion, wires extending into one end of the body portion, one of the wires being connected with the the inner tubular member, a member for establishing a circuit between the last mentioned wire and the wire passing through the swivel, and said member adapted to hold the inner tubular member'in position against the insulating plug,

the other of the last mentioned wires being secured to the tubular body portion and in circuit with the wire connected to the swivel, through the tubular body portion.

EDWARD J. ELSAS.