US1273056A - Electrical connection. - Google Patents

Description

J. H. GEORGE.

ELECTRICAL CONNECTION.

APPLICATION mu] JAN. [2. ms.

Patented July 16, 1918.

[IT/067L507? Joli/rail. G60

UNITED STATES PATENT OFFICE.

JOHN H. GEORGE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO HAWTHORNE MANU- FACTURING COMPANY, INC., 01? BRIDGEPORT, CONNECTICUT, A CORPORATION OF CONNECTICUT.

ELECTRICAL CONNECTION.

Specification of Letters Patent.

Patented July 16, 1918.

To all whom it may concern.-

Be it known that I. JOHN H. Gnoaon, a subject of the King of Great Britain, and a resident of Bridgeport, county of Fairtield, and Stateof Connecticut, have invented an Improvement in Electrical Connections, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to electrical devices and among other objects provides a simple and effective means for connecting conductors.

The character of the invention may be best understood by reference to the following description of an illustrative embodiment thereof shown in the accompanying drawing, wherein- Figure 1 is a front elevation of an embodiment illustratingthe invention;

Fig. 2 is a side elevation of the embodiment shown in Fig. 1;

Fig. 3 is a vertical section taken on line 3 3 ()f,Flg. 2;

Fig. 4 is a transverse section taken on line 4-4 of Fig. 1;

Fig. 5 is a plan view of a section of the P Fig. ti is a front elevation of the section shown in Fig. 5;

Fig. 7 is a plan view of a section adapted i to mate with the section shown in Fig. 5;

Fig. 8 is a front elevation of the section shown in Fig. 7; and

Fig. 9 is a detail to be referred to.

Referring to the drawing, the cml'iodimcnt. there shown as illustrating the invention comprises a body formed of mating sections land 3 (Figs. 5 to 8) of rubber or other appropriate insulation material. To facilitate accurate registration of the sections on assembly. the section 1 may be'provided With,a central. longitudinal rib 5 adapted to enter a similarly shaped. longitudinal dc prcssion 7 in the section 2;) and the rib may have a nub E] (Fig. (i) interna-diatc its ends adapted to engage a similarly shaped recess 11 in the depression.

The dcvicc may accommodate one or more conductors as desired. For purposes of illustration two insulated conductors 13 are shown herein. To receive these conductors the body sections described may have longitudinal grooves mating to form holes 15 to accommodate substantial end portions of the insulated conductors. The body sections also may have grooves mating to form holes 17 to receive contact terminals 19 urged outward by helical springs 21 adapted to press against heads of said terminals.

The holes 15 are connected with the holes 17 by grooves forming central passages 23 preferably slightly smaller in diameter than said holes. r

The mating grooves in the sections greatly facilitate the introduction and securing of the conductors into the device as more fully hereinafter described.

The terminal holes 17 may be provided with lining sleeves of brass or other appropriate conductive inatcria ihaving necks 27 projecting into and fitting the passages 23. The outcr ends of the sleeves may have internal flanges 2!) for engagement with the heads of the contact terminals to limit the outward movement thcrcof. Each contact sleeve may be formed in sections corresponding to the grooves in the body sections.

The conductors ha to bare end portions 31 projecting somewhat beyond their insulations into the nccks 27 of the contact sleeves. the latter serving to connect the conductor ends with the terminals. Screws 33 may be entered through smooth holes in the body section 1 and necks of the contact sleeves and have threaded engagement with the body section The heads of the screws may set in counter-bores 35 in the section 1.

These screws serve the dual function of holding the body sections securely in assembled relation and of anchoring the bare ends of the conductors in the necks of the contact sleeves.

The end portion of the body receiving the contact terminals may be formed cxteriorly to prcscnt a plug 37 adapted to be inserted into a similarly shaped socket (not shown). To limit the movement of the plug into its sulating material socket the body may be provided with a circumferential flange 39 intermediate the ends thereof.

To contribute to the finished appearance of the fitting, a cap 4]. may be provided threaded on the end portion of the body receiving the insulated crnductors. This cap ma be tapered and have an aperture 43 at the outer end thereof through which the insrlated conductors may project. The inner end of the cap is adapted to abut against and be limited by the circumferential flange 39. A circumferential bead 45 at the inner end of the cap contributes to the pleasing appearance of the fitting.

The conductors may be easily, readily and permanently connected with the contacts. The end portions of the insulated conductors are presented into the grooves in one of the sections with the bare ends of the conductors occupying the parts of the contact sleeves in said section. Then the mating section is presented to the section having the conductors therein, the rib 5 and nub 9 enabling the ready, accurate assembly of the sections. Next the screws are inserted and in the course of their entrance into the sections will press the bare ends of the conductors into tight engagement with the necks of the contact sleeves.

The body sections and contact sleeves may be very readily pressed by dies into their desired form and be very easily assembled, thereby providing a strong, simple construction cheap to manufacture.

There is no danger of the screws cutting or tearing the conductors in removing the latter from the body, since the conductors cannot be removed without first releasing the screws and this permits the body sections to fall apart, thereby exposing the conductors and freeing the same from said screws.

It will be understood the device may be readily constructed to accommodate any number of conductors desired.

Having described one illustrative embodiment of the invention without limiting the same thereto, what I claim as new and desire to secure by Letters Patent is 1. A device of the class described comprising .1 body of mating sections of inhaving grooves therein forming a hole for receiving a conductor, sleeve sections of conductive material seated in said grooves having nwardly directed end portions, spring-pressed contact terminals in said sleeve sections having enlarged portions embraced and held by said in wardly directed portions, and a screw for securing said body sections together and for securing said conductor to said sleeve.

2. A device of the class described comprising a body of mating sections having opposed grooves therein forming a hole for ieceiving a conductor, and an element for securing said sections together constructed and arranged to engage the conductor for anchoring the same in said hole,

3. A device of the class described comprising a body of mating sections having opposed grooves therein forming a hole for receiving a conductor, a longitudinal member on one for entrance into a longitudinal depression on the other for facilitating registration of said sections on assembly thereof, said member and depression being correspondingly enlarged at a point along their length, and means detachably to secure said sections together.

4. A device of the class described comprising a body of mating sections having opposed grooves therein forming a hole for receiving a conductor, means including a rib on one for entrance into a depression on the other and a nub on one for entrance into a recess on the other to facilitate registration of said sections on assembly thereof, and means detachably to secure said sections together.

5. A device of the class described comprising a body of mating sections having opposed grooves therein forming a hole for receiving a conductor, opposed contact lining sections seated in said grooves, a'spring- .pressed plunger in said sections, means for securing the latter together having provisions for anchoring said conductor to the lining, and a ca on said body.

6. A device 0 the class described comprising a body of mating sections having two sets of opposed grooves therein forming holes for receiving conductors, contact linings in said holes, spring-pressed plung'ers in said linings, a rib intermediate the grooves on one section for entrance into a longitudinal depression between corresponding grooves on the other section, and screws for detachably securing said sections together and anchoring said conductors in said holes.

7. A device of the class described comprising a pair of mating sections having opposed grooves, substantially semi-cylindrical members of conducting material providing linings for said grooves, said members iaving inwardly directed portions, a spring pressed contact terminal having an enlarged portion embraced and held by said inwardly directed portions and means for securing said sections together.

8. A device as defined in claim 7 wherein the securing means passes through the semi-cylindrical members, positively positioning the same.

9. A device of the class described comprising a pair of mating sections having opposed grooves. substantially semi-cylin- (h'ilf'll members of conducting nmteriul proname to this specification in the presence of vnhng hnmgs ior snnl gru'rn'es, u (:onductn'u subserlbmg witnesses.

tuxreeeived between said members and :1 \I H w P OR L. metallic seenrmg dm (-0 huhhng he twu JOHL (I (I u seetmns together, pass-111g through sunl Wnnesses:

members and engdglng the eomluvtor. lfinnen'un'ru A. HAWTHORNE,

n testimony whereof, I have signed my I. Hermon llmv'ruunxn.

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