US1858072A - Attachment plug receptacle - Google Patents

Description

May 10, 1932. CLEMENCE 1,858,072

ATTACHMENT PLUG RECEPTACLE Filed June 25. 1927 INVENTOR EZZzIoZZ lemence,

. ATTORNEY v Patented May 10, 1932 UNITED s'rA'r-ss PATENT .orr ca ELIOT! omen. 01' m YORK, I. Y; M19110], 3'! ml IO m IOHOWAT'I' ELECTRIC CORPORATION. .01

roan-Ion or conmrcor 33111032031. comm-rice '1, A 008- arracnxmtr rave ancnrrscm Application am June a, 1m. mm 'I'o. aouoe device. the metallic conducting parts thereof as well as the metallic attachment. arts not in circuit are duplicates,thereby h ving the die work necessary for striking up the metallic portions used.

Other advantages of'my device are that,

owing to the location (if the contact recesses for receiving the metal .parts of opposite polarity, these particular members are widely spaced, insuring absolute insulation, and at the same time are located to receive the standard connector plugs now in use.

A further advantage is in the arrangement of the recesses in the main insulator body, wherein said recesses are all open from the top of the body, with no openings at the rear thereof.

Another advantage of m deviceis that the parts of the receptacle a and easily assemb ed, are fixedly held in asgab sembled condition by the simple operation of fastening two cover plates, with a single fastening means for each plate, whichin addltion to lockin the assembly also ocks' up receptacleattac 'ng straps in a rigid and suitable manner. I

These and other capabilities will be ascertained as the description proceeds, and 11'. is obvious that structural modifications may be made in the details of my receptacle without departing from the spirit thereof or the scope of the ap nded claims.

In the rawings:

.Fig. 1 is a plan view of my'device.

Fig. 2 is a side view thereof.

Fig. 3 is a plan view with the plug receiving cover plates removed.

Fig. 4 is a lan view of the main recessed receptacle y with all assembly removed.

Fig. 5 is a sectional view taken on the line 5--5, Fig. 4, looking in the direction of the arrows.

r being quickly Fig. 6 is a sectional view 6-6, Fig. 3. r

Fig-7 is a combined view of the plug receiving cover plateshowing the bottom and end view thereof. 1

Fig. 8 is a combined view of 'one of the duplicate contact members inside, plan and en elevation.

While certain featuresof the present invent on are adapted for use in single flush receptacles, the invention is for convenience taken on the line illustrated as applied to 'a'duplex flush rece tacle. The parts are all carried by an insu sitingl body 1, which may be made of porcelain, obmolded or other insulating material. The base for the duplex receptacle is shaped to have two substantially cylindrical end sections 2 and 3, and two centrally disposed 'laterallyeextending lugs 30. The front face 4 of t base is provided with a number of recesses. As. here shown,-these recesses are in pairs; 5 and 6 adapted to receive contact members, and 7 and 8 adapted to receive supporti'n straps. The insulating body is also provi ed with key receiving recesses 18. f

In the molding of these bodies there is also provided a series of bushin one of which 9, is a centrally located bushing threaded and embedded and molded into the material as shown in Fig. 5. In addition thereto, there are also provided at substantially the center of the cylindrical members 2, and 3 two upstanding pins or thimbles l0 and 11 provided with a thin upstanding cylindrical portion adapted to be either spun over in the form of a hollow rivet or threaded to receive a screw.

The other insulating parts. of the duplex receptacle may consist of cover caps or plates 14, preferably made out of molded material. These covers are provided with blade receiving slots 15, spaced to receive the blades of attachment plugs, and also with central holes when the parts are assembled.

One of the conducting members, suitable for a duplex receptacle having a base of the type .above described, is shown in detail in Figure 8. Figure 3 shows the assembly of these conductin members in the insulating base. These con ucting members 19 are alike,

and each is made from a flat blank of suitable resilient metal such' as manganese bronze, the

stamping being bent to suitable form to provide on opposite ends a pair of folded over spring contacts 20. These spring contacts may be provided with the usual indentation or teat 21. The contact member 19 is als provided with a centrally located laterally extending lug 22 to the bottom of which is secured a reinforcing plate 23. The lug and plate are threaded for a wire receiving screw 24. Portions of the conducting strip are bent as indicated at 25, to provide an offset cenwhat deeper and wider than the remainder.

of the recesses. These recesses conform to the shape of the conducting members, and are adapted to receivethe conducting mem-- bers, as indicated in Figures 3 and'6, and

, hold them immovably therein. When the contact members are inserted in place, the

. offsets 27 rest against the side walls 28 of the recesses 5 and 6, and the lugs 22 and the conducting members extend outwardlty) to overlie the lugs 30 on the insulating ase These lugs are provided with enlarged blind holes 29 to receive the screws 24.

As a means for attaching the plug receptacleto the usual outlet box, there is also provided a pair of metallic attaching straps 31 which are provided with the usual enlarged attaching screw-receiving hole 32, of oblong form, whereby the said device upon installation may be properly attached to the face of the outlet box in the usual and well known manner.

In the present instance the straps 31 are made separate and, as in the case of the contact member 19, are duplicates and are of such form that they are firmly and rigidly received into the shallow conforming recesses 7 and 8, as indicated in Figs. 2, 3, 4 and 5, and the straps are further provided with bores 33 whuch suitably register with the upstanding bushings 10' and 11,- so that when the straps are inserted in the position shown in Fig. 3, they aresubstantial y flush with the top face 4 of the body 1.

assume either by the screws 12 and 13 or by upsetting or riveting the end of the inserts 10 and 11.

The cover members bear on the extensions26 and secure the contacts and attaching strips in place. The receptacle is then ready for installation. The connections may be readily made by placing the wires under the heads of the screws 24.

From the foregoing description and the drawings it will be ascertained that all openings in this device-are from the top .of the body 1, and that owing to this structure the body -1 is easily molded in a simple type of mold because'of the fact that the openings are drafted in one direction for easy withdrawal from the mold.

It will be further ascertained that the assembl of all parts necessitates the handling of on y six pieces, disregarding the screws,

and that they are all introduced from the top of the structure and that two simple fastening means, also on the top, lock the entire assembly in operative relation, as previously described. a

It will therefore be ascertained that I have designed an attachment plug receptacle of great simplicity, easy to assemble and therefore of greater economy in manufacture, and at the same time have improved the article as to obviate the tendency of short-circuits by widely separating the operative parts, all

of said parts being. paired and being dupli-- cates, thereby further reducing the cost of manufacture through the elimination of extra sets of dies.

It will, of course, be understood that many of the features of the duplexreceptacle above described ma be employed in a single flush receptacle. lso that various modifications may be made within the scope of the ap- I pended claims.

Having thus described my invention what I claim is:

1. An attachment plug receptacle comprising an insulator body portionprovided with a plurality of recesses from the top thereof,

duplicate circuit contact members and, duplicate receptacle attaching straps, which are located in said recesses, a pair of cover plates mounted thereover with a single attaching means for each of said cover plates whereby said cover'plates are held in operative POS1-- tion, and lug means on said contact members for engaging thesides of said recesses and "q said cover plates whereby said contac t members are firmly held in operative position.

2. In an attachment plug receptacle an insulator body receptacle provided with recesses from the top thereof, a pair of metallic circuit conductin members therein, keyways molded in sai body member and disposed between said recesses, and a pair of covers for said receptacle, each of said covers being provided with a key for cooperating with the keyway to lock said covers 1n operative relation.

3. In an attachment plug receptacle, an insulator member provided with a plurality of recesses therein entering from the top, a

air of said recesses being at the ends of said iiody and adapted to receive therein opposedly mounted duplicate strap attaching means, another pair of said recesses bein adapted to receive therein duplicate opposing metallic circuit conducting members, said last recesses being on opposite sides of the said body, and opening to the opposite sides thereof to provide an outlet for wire attaching means on said conducting members, and cover plates fixedly secured to said insulating .member over said recesses and adapted tosecure therein said attaching means and said circuit conducting members.

4. In an attachment plug, aninsulator body provided with receptacle attachment means comprising a pair of oppositely mounted attachment straps set in conforming recesses in said body, and insulating cover plates overlying the straps, and metallic attaching pins, one for each plate, one of said insulating parts being apertured to receive the correspondingxpin which is secured to the oppo site part, t e pin being riveted over to secure the cover plate and the strap overlaid thereby in place.

5. In an attachment plug receptacle, an insulating body having strap recesses, straps in said recesses, the body having contact receiving recesses, contacts therein, cover plates having blade receiving openings, and aligning keys registering with recesses in the bod and means for securing the cover plates 1n position on the straps to hold them in the recesses.

6. An attachment plug receptacle comprisin an insulating base provided with a lurahty of contact receiving recesses openmg toward the front face of the base, the re? cesses having lateral o nings, a air of contact members conforming to the s ape of the recesses and insertible into the recesses from the front face of the base, each contact member havin a spring terminal opposite the correspon in spring terminal of the other contact mem r and a wire receiving terminal extending out through thelateral opening, and an insulating cover plate secured to base, the cover plate having apertures to permit contact blades to pass through to reach the spring terminals, the cover plate and contact members havin co-operative parts to force the contact mem ers to the bottom of the recesses whereby they are immovably heldtherein.

7-. An attachment plug receptacle comprising anmsulating base provided .with a plurality of contact receiving recesses opening toward the frontface of the base, the recesses having lateral openings, a pair of contact members conforming to the shape of the recesses and insertible into the recesses from the front face of the base, each contact member having a spring terminal opposite the corresponding spring terminal of the other contact member and a wire receiving terminal extending out through the lateral opening, and an insulating-cover plate, one of the said insulating parts having a metallic attaching pin adapted to pass through an aperture in the other and be riveted over to secure the two parts together, the cover plate havin apertures to permit contact blades to pass t rough to reach the spring terminals, the cover plate and contact members have cooperative parts to force the contact members tozthe bottom of the recesses whereby they are immovably held therein.

8. An attachment plug receptacle comprising an insulating base provided with a plurality of contact receiving recesses opening toward the front face of the base, the recesseshaving lateral openings, a pair of contact members conforming to the shape of the recesses and insertible into the recesses from the front face of the base, each contact member having a spring terminal opposite the corresponding spring terminal of the other contact member and a wire receiving terminal extending out through the lateral opening, an insulating cover plate secured to base, the cover plate having apertures to permit contact blades to pass through to reach the spring terminals, the cover plate and contact members havingco-operative parts to force the contact members to the bottom of the recesses whereby they are immovably held therein, the base having a recess in the front face, disposed between the contact receiving recesses, and an attaching strap fitted therein and held by said cover plate. 7

9. An attachment plug receptacle comprising an' insulating base provided with a plurality of contact receiving recesses opening toward the front face of the base, the recesses having lateral openings, a pair of contact members conforming to the shape of the recesses and insertible into the recesses from the front face of the base, each contact member having a spring terminal opposite the corresponding spring terminal of the other contact member and a wire receiving terminal extending out through the lateral opening, and an insulating cover plate secured to base, the cover plate, having apertures to permit contact blades to pass through to reach the spring terminals, the cover plate 1 and contact members having co-operative parts to force the contact members to the bottom of the recesses whereby they are immovably held therein, the base having lateral extending supporting lugs underneath the wire receiving terminals.

10. An attachment kplug receptacle comprising an insulating use provided with a plurality of contact receiving recesses opening toward the front face of the base, the recesses having lateral openings, a air of contact members conforming to the s ape of the recesses and insertible into the recesses from the front face of the base, each contact member having a spring terminal opposite the corresponding spring terminal of the other contact member and a wire receiving terminal extending out through the lateral opening, and an insulating cover plate secured to base, the cover plate having apertures to permit contact blades to pass through to reach the spring terminals, the cover plate and contact members having co-operative parts to force the contact members to the bottom of the recesses whereby they are immovably held therein; the cover plate having an alignment lug adapted to enter a recess in the insulating base to align the apertures with the spring terminals.

11. In an attachment plug receptacle, a one piece insulating body member provided with a plurality of longitudinal recesses entering therein from the top, said recesses being adjacent opposite sides of said body and opening centrally through said sides, duplicate opposing metallic conducting members disposed in said recesses and extending through said side openings to the outside of the body and there provided with wire attachment, means, and cover plates fixedly secured to said body over said recesses and adapted to secure said conducting members therein.

Signed at New York, in the county of New York and State of New York, this 24th day of June, A. D. 1927.

ELLIOTT CLEMENCE.

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