US1778615A - Attachment plug cap - Google Patents

Description

Oct. 14, 1930. N. H. wA'rrs ATTACHMENT PLUG CAP Filed June '7, 1926 Na/.E X1. Mvrrd,

INVENTOIL A TTORNEYS.

Patented Oct. 14, 193@ p UNITED STATI-:s1 PATENT ori-Ica NOBL H. WATTS, OF OAKLAND, CALIFORNIA, ASSIGNOR, BY MESN ASSIGNMENTS, -TO

GENERAL ELECTRIC COMPANY, OF SCHENECTADY, NEW YORK, A CORPORATION OF i NEW YORK ATTACHMENT rLuG CAP application med .Tune 7, 1926. seriai no. 114,aoo.

This invention relates generally to a connection .terminal for electrical cords.

It is an object of this invention to devise a connection terminal for a cord which will be practically indestructible.

It is a further object of this invention to devise a connection terminal which 'will' be sealedv against external vapors and liquids.

It is another object of this invention t`o lo devise a novel connection terminal which will incorporate aresilient insulating material such as. rubber.

It is a further obiectY of the invention to devise a cord terminal which will have no exposed screws or bare wires and which will not become short circuited.V

appear from the following description in which I have set forth the preferred (emvl 2o bodiment of my invention. Itis to be understood that the ap ended claims are to be accorded a range o equivalents consistent with the state of the prior art,

My invention is illustrated in the accompanying drawing forming a part of this application, in-Which- Fi ure l is a longitudinal section through the evice,.

Figure 2 is a section along thelline of Figure '1, Y

F'gure 3 is a front elevation of the, device, v and Figures 4 and 5 are views similar to Figure 3, but showing the terminals o\the cap in dierent positions.

In` carrying out my invention I provide a cable l, which houses two insulated wires 3 and 4. Terminals 5 and 6 of the shape shown in Figure 2, are carried by al1/insulating housing 7, and are connected to the wires 3 and'4 in a manner now to be described. s A

Each terminal hasv an eyelet 8 around which the insulated wire is wrapped'one or two revolutions. y wrapped an kadditional number of turns around the portion of the terminal forming the eyelet, and is then soldered to the terminal. I have found that the portion of the wire disposed adjacent to thesoldered The bare wire is then point will not ieX so readily, and it is for this reason that I have provided a number of turns of' Wire to ermit relative movement of the termina With-respect to the wire, Without the wire becoming broken through use.'

After the Wires 3 and 4 have been wrapped y around thir respective terminals 5 and 6 in the manner just set forth, a core 9 is forced through the eyelet 8 and spaces the terminals 5 and 6 the required distance apart. The casing 7 is now set into place and is vulcanized tothe core 9. It Will therefor appear that the terminals 5 and 6 are completely surrounded by rubber. The casing 7 has a sleeve 10 i which encloses the cable 1 for a slight dis- The further objects of the invention will tance.

From the foregoing description of the,

ll should be a greater distance apart than the distance between "the terminals 5 and 6,

the casing? could be depressed in the man' ner shown in Figure 3, whereupon the terminals 5 and 6 would be moved the required distance apart, thus permitting the cap to be inserted in the plug. The cap 7 would be depressed in the Imanner shown in Figure 5 in case the openings in the plug 11 were close together.

The casing 7 is made of rubber and prol vides a casing which performs a threefold function, in that the casing insulates the terminals 5ian'd 6 from each other, it permits the terminals to be moved toward lor away .from each other, and it also yieldingly holds the terminals together, thus `exerting a suiii-` cient force for causing the cap 7 to be secured to the plug 1l. f t

I claim:

l. A. device of the type described, comprising a cable carrying wires, terminals having eyelets at one end thereof, said wires being wrapped around' said eyelets, an insulating and resilient core passed through said eyelets, and an insulating and resilient casing securing said core and said terminals to seid cable. I

2. ln a resilient terminal, a resilient body of insulating material, a'pair of spaced contact strips having their ends embedded in the resilient material of the body whereby the exposed ends of the Contact strips may give relative to each other due to the resilient nature of the body, and a single anchoring memm ber embedded in said body and connected to the embedded ends of kboth strips.

lin testimony whereof I aiix my signature.

vNOBLE H. WATTS.

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