US1746159A - Electric-cord swivel connecter - Google Patents

Description

Feb. 4, i930. J. MARCH ET AL 1,746,159

ELECTRIC CORD SWIVEL CONNECTER Filed July 18, 1927 JEn n e s 772 cw'ch/ Jhw flail e3 INVENTOR ATTORNEY 20 or damage to the conductor cords caused by Patented Feb. 4, 1930 UNITED STATES PATENT, OFFICE JAMES MARCH AND JOHN DAILEY, OF BEAVER FALLS, PENNSYLVANIA ELECTRIC-CORD SWIVEL QONNECTER Application filed July 18,

This invention relates to swivel connecters for electric wires or cords, and its general'object is to provide a connecter that is primarily designed to permit rotary movement of elec trio cords so as to prevent the latter from twisting. and allows for the eflicient use of electrital appliances having connection with the cords.

A further object of the invention is to provide a removable plug head with contact tongues or pins in electrical connection with .cord conductors that are secured to independent movable members electrically connected to the tongues or pins, with the result twisting of the conductor cords will be eliminated, and the head can be used with socket plugs or other socket means to accommodate the tongues or pins without fear of the latter casually pulling out of the plugs or means,

twisting, when used with electric appliances vsuch as irons, tools, lamps, utensils and other like articles.

Another object of the invention is to provide an electric cord swivel vconnecter that is extremely simple in construction, inexpensive to manufacture, easy to apply for use, and is eflicient in operation and service.

This invention also consists in-certain other .features of construction and in the combination and, arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanyin drawings and specificallypointed out in tie appended claim.

In describing our invention in detail, reference will behad to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which a :Figure 1 is 'a sectionalview taken through. the casing and showing vthe other parts of our connecter in elevation.

Figure 2 is a vertical sectional view taken through the conn'ecter in its entirety.

Figure 3 is a sectional view taken approximately on line 33 of Figure 2.

Figure 4is a sectional view taken approximatel on line 4:4 of Figure 2. Re er'ring to the drawings in detail, the reference numeral 1 indicates a plug head cas- 1927, Serial No. 206,707.

ingv formed from insulating material, and while we have illustrated our connecter applied to-a plug head, we want understood that it can be applied to other devices that necessitate electric cords secured thereto without departing from the spiritofthe invention. The casing 1 is substantially cup-shape as be:'t shown in Figures 1 and 2, and formed centrally through its closeden'd is an opening 2 for a purpose which will be presently apparent. Disposed in the casing is a pair of bearing members each of-which include outer shells 3fand 3, and'these shells have formed with one circumferential 'edgev'thereof an inturned flange disposedsubstantially at right angles't'o the; body thereof as best shown in Figureg2, and the opposite circumferential edges of the shells are curved in.- wardly. Secured in any appropriate manner to the curvedportions of the shells are trans Versely curved race ways 12, and it is to be understood-that the shells and their race ways are fixed within-the casing Cooperating with the race ways 12 are iri'ner'shells 4 and Pwhich asbestshown' in Figure 2 are provided with curved portions overlying the race Ways 12 and cooperating therewith to receive balls 5. The inner shells are provided with straight portions disposed in close proximity to the inner edge of the transversely curved race ways, and by this construction, it will be apparent that the balls are retained in their path of movement and casual removal of the balls will be prevented. The curved portions of the inner shells 4 and 4 may likewise be termedrace ways, asthey cooperate with the-race ways 12 as above set forth to accommodate the balls .5. I 'i Bridging the inner shells 4 and 4 and having their opposite ends'secur'ed to the curved portions attheir juncture with the straight portions are strips 6 and 6", and'these'strips are provided with threaded openings mid-- way their ends to accommodate headed terminal screws 7 and 7 that secure one of the ends of conductors 8 and 8 to the bridging strips as best shown in Figure-2. The conductors pass through the opening 2 and have their oppositeends electrically. connected with a suitable electrical connecter, or. may be dithe inner wall of the casing 1, thence being bent at right angles upon'itself and further bent accordingly is one of the members which provide a tongue or pin 9 which cooperates a can be inserted in the sockets of a socket plug with a companion pin or tongue 9 disposed in spaced relation with the tongue or pin 9 as shown in Figure 2 and the member providing the tongue or pin 9 is provided with a right angle portion arrangedwithin the casing, with one of the arms of the right angle portion fixed to the outer shell 3*. e The tongue or pin members are secured to the outer shells 3 and 3 in a manner to be diametrically oposed with respect to each other as indicated y the reference numerals 10 and 10 respectively. w

The bearing members are spaced through themedium of an insulating washer 11, and the casing is provided with a cover 13 of insulating material which has disposed therein slots to accommodate the tongues or pins 9 and 9 that pass therethrough whereby they or the like and disposed between the cover 13 and the shell3 is a disk 14;" of insulating material.

From the above description and disclosure of the drawings, it will be obvious that we have provided an electric cord swivel connecter that prevents the cords from becoming twisted when the device is in use with an electrical appliance, with the result efiicientuse of the latter will be possible as well as preventing damage to the cords.

.It is thought from the foregoing description that the advantages and novel features of our invention will be readily apparent.

We desire it to be understood that we may make changes in the construction and in the combination and arrangement of'the several parts,- provided that such changes fall within the scope of the appended claim.

What we claim is:

An electric cord connecter comprising a casing having a closed end provided with an opening, bearing members arranged in said said members, one of said tongues being setures;

' 'JAMES MARCH.

JOHN DAILEY.

casing and each including an outer shell having one of its circumferential edges bent at right angles and its opposite edge curved, a

race way for each curved edge and secured thereto, inner shells having curved portions cooperating with therace ways, balls between the curved portions and race'ways, straight portions included in the inner shells for retaining the-balls between the curved portions and race ways, strips bridging the bearing members and having their ends secured to theinner shells, means carried by the strips for securing conductors thereto, said'conductors being adapted to pass through the opening, spaced parallel contact tongues included in

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