US895175A - Appliance for wiring conduits. - Google Patents

Description

APPLIANC FOR WIRING CNDUITS.

Ton 11.21) JUN 2 SHEETS-SHEET l.

PAA; Y

No. 895,175. PATENTED AUG. 4, 1908.

P. H. PIBLDING. APPLIANCE POR WIRING columns.

APPLICATION FILED JUNEYB, 1908.

@Vif/names 2 SHEETS-SHEET 2.

oniirni) crains ein ie H. ifi-eroine,

APPLIANCE FR CONDUITS.

To all whom it ymuy concern:

Be it known that I, PniLiP II. FiBLDiXG, a citizen of the li'iitetlStatcs,residing atthe city of New York, in the county of New York und Siate of New York, have invented certain new and useful Improvements in A ipliances for Wiring Conduits, of which the following is a fuil,clear, and exact description.

My invention relates to conduit wiring, and particularly to the provision of a convenient lamp receptacle or rosette adept-ed for use with wiring of this class.

The principal object of the invention is to rovide a forni of receptacle which can be tilted directly upon the ordinary inet-el piping of a conduit system, and inwhich the ele?.- tric connections are runde in a siin le, e011-, venient and highly ellieient way, am so as to hohl the circuit wires of the conduit firmly in a fixed relation outl of contact with the conduit. waits.

A further object of the invention is to enable the osi-ts to be -quick] assembled into place, to inve them firmly `locked or held in place when properly positioned, and to attain perfect insulation of all electrical connections by having -tliem'completely inca-sed in porcelain channels or ducts through which the circuit wires are led at the points of connection. A

Finally I aim to provide si practical structure of pieusingappearfince which has few parts, and which is not liable to breakage or disorder.

With these and other objects in view-,tiny invention consists in the features of construction niid combination hereinaer| 'set forth', and particularly sis pointed out in' the ap )ended c.aiins.

n the drawingszlfigure 1 is a side view showingr a conduit receptacle embodying the principlcs of my invention; Fig. 2 is a sectional vicw of t ic saine; Fig. 3 is a top view with the lamp socket removed; Fig. 4 is a transverse sectional view on the line IV-IV of Fig. 3; Fig. 5 is a transverse section of the lamp socket; Fig. 6 is a perspective view of the circuit wires and parts, the conduit pi e being removed; Fig.'7 is an end view of t ie two parts of the receptacle in normal relation.

In conduit, wiring for incandescent lain is, all the circuit wires are inclosed in meia lie pipes, generally ordinary Wrought iron pi ov 0F NEW YORK, N. Y.

Lettera Patenti.n

Patterned Aug. 4, 190s.

190e. serial No. 320,399.

neces to cut-and'threador aperture. the pip t the desiredpoints in order to get access to the circuit wires. When the pi is out in this way the exposed wires must gg prevented from short -circuiting u on one another, or from grounding u on t c pipe.` They should also be protecte from conn 0 in contact with any outside objects, an dampness. All of these objects are attained 5b. by niy resent invention, sind in addition? thereto obtain a strong, compact. and pleas-. ing iainp socket rigidly fixed upon the conduit piping, and which can be'easily assembled into position or taken apart.

in carrying out my invention I employ a receptacle having two insulating iarts, conveniently of porcelain, one of which is received within thd'couduit pipe, and the other of which has cors by which it is screwed to the outside of the pipe. The inside block or part constitutes the tern .iiisil block by' which the circuit connections.iireinade. The out-` side insulating block orpart constitutes a other device adapted to receivean ordinary incandescent lamp. The \arrangenient is such that the central stud cnnection of the lump socket is formed by a metallic clip upon the inside block, and entirely independent of like parts are desig ated by the seine reference sign', 1. indica es an ordinary conduit pipe, and 2 and 3 aio the usual circuit wire-s 90 contained therein. :The pipe hes an oper; ture 4 cut therein at the location where it is desired to have a lain In the practice of@ my invention I make t e aperture 4 of genen :illy rectangular forni, occupying a section of `35 the pipe, with end surfaces 5, per endicular` t' p to the exis of the pipe, and side et' ges (5,'tiie faces of which are preferably cut in the somo plane, es clearly shown in Figs. '4 and 5. The transverse extent of this a )erture has a. special relation to the inside b iock, for a-purpose which will he hereinafter stated. Inserted within the pipe through this aperture is the inside bloc 7 having a rounded exterior surface 8, corresponding to the internal wallof the pipe, and having' flat upper face 6r ledge 9, on which the terminal connections are made.

1l) indicates a ridge or partition, which extends in a direction generally longitudinal of the block and of the iping along the center of the ilat face 9. Tiie arrangement is such lamp socket, and has af threaded sheli 'er 80.l

. l i t that a space is left for the circuit wires 2 and 3 on either side. of the central rib or partition 10.

In practice the rib or artition is not perfect-ly straight, but is elleeted at its centi'al portion, and has an integral irotubcrance 11, which extends upward and through the aperture 4. This protubcraiice' is eonvcniently flattened or recessed on one side, lo and constitutes a support for the central stud terminal of the socket. The two terminals are secured in place upon the face 9 of the inside block and in practice I make the central stud terminal l2 with an' upwardly extending stem 13, upon vthe top of which is a cap 14, which ovcrlies the upper surface of the prot-uberanee 11. The stem 13 is conveniently opposite the llat or recessed face of the protuberance l] above 30 mentioned.

15 indicates an ear which is turned up upon a portion of the terminal clip 12, and 16 designates a screw closely adjacent to the ear 15, and which servesto clamp one of the circuit. wires thereagainst.. rlfhe other ter minal clip 1T has a corresponding ear 1S and clainpiiier screw lt), co icratingjr therewith. f

2() indicates a tubular extension on the terminal clip 17, for a purpose which will presently appear.

The lamp socket block is indicated at 21, and has ears 22 al'icrtured for screws 23, by which the block is secured to the pipe 1.

Z4 designates the threaded shell cemented or otherwise fastened into the block 131, and additionally held by mechanical fastening means. For this purpose l conveniently ein ilov a screw 25, which `passes through the shell est, metallic washer 21', and finally through block 2l, and into a threaded bushim:r 26, prcjectinlf on the lower side of the lainpsoche't bloeit. The purpose of washer 24 is to insure a good electric connection bctfween the shell and screw. The position of the threaded bushingr .756 is in axial aliiienicnt with the tubular extension .20 ot the clip 17.

27 indicates a split portion of this bushingr which is adapted to be received in said tubular extension 2t). An additional fastening means is obtained by the fastener 2S passed through the block 21, and shell 24, and liavuner its head 29 in a counterbored recess in the block so as to preclude any possibility of a short circuit with the/ terminal beneath. .is The lamp socket block 2l has a cent-ral o iening 3() eo-axial with the shell 24, and its lower face is rounded to a curvature corresponding to tlieinternal bore of the iipc, as s iowiiatl. Thelengtli ofthis roun ed porce tion is equal to the length between the end surfaces 5 of the aperture 1, so that the socket block is closely received into said aperture in use. The position of the ears 22 upon the will come opposite the terminal clipsclZ and' 17.,A It is iiow merely necessary to insert the inside block 7 into place, which can be ac` coinplished b v an eiidwise movement. In

this relation the circuit wires 2 and 3 lie on opposite sides of the central rib 10, and o posite the rerminal'clips 1. and 17. `T ie iared portions are now clam )ed against theears 15 and 1S by simply tigllitenincr the respective. screws 1G and 19. It will be ob served that in this relation the two wires are adequately protectcd from one another by the central partition or rib 1t), and they are protected from any contact with the conduit )ipe by the two porcelain blocks which forni between them .i pair of ducts or channels which completely incase the bared portions. 'lhis protection is partly due to the shape of the lower surface 31 ofthe socket bloel: which takes the place of the pipe at all points where any short circuit might otherwise be possible. This curved surface of the socket block 21 slightly overlaps the-edges of the inside block T so as to gire absolute protection. lt is of coin-.ze not'essential to have. this particular form of either block, the ii-iiportaiit characteristic. being to have a pair ot" ducts or chan-l nels formed when the. two bloc-ks are placed together, in which the barcd portions of the wires are completely in fused. The relation is clearly indicated in Figs. 6 and 7 fioiii which it will be seen that the. individual circuit wires have what are. virtually little vitreous conduits at the region where they are bared for the coiuiections. A

The socket blocl' 1 is placed in position so that the protuberanee 11 extends upward' through the opening 30 therein, and the` bushing,l 27 projects downwardly into the tubular extension 2t) of the other terminal socket establishing the electric connect-ions and holding the two blocks firmly together. The screws 23 being,r then driven into place,

the receptacle is complete and ready for use.

While the invention has been described more particularly in connection with a lanip receptacle, it is obvious that the features thereof are equally a iplicablc to use in rosettcs. and all similar electricappliances which are employed with conduit wiring. I do not therefore desire to be limited or restricted to, the particular application shown.

1. In combination with a. conduit pipe having a cut-out port-ion therein and `having circuit. wires, a block of a size corresponding to said cut-awav portion of the. conduit pi e socket bloei; is such as to secure and premrve c5" tli\is relation.

and adapted to be placed therein beneath t. e circuit wires, an a ditional bleek positioned n dditional hloclc to mln c clcctriciil connections with .the inside block when positioned on the tt-i uit pipe opposite said cnt-away 2. in combination with im ordinary cylin- 'dricfil witter-tight. conduit pipe having n. cut awa portion :ind circuit wircs thcroin, two bloc is of instituting n nitciiiil one'of which is 1()A rcccrcd within the conduit sind has terminal clips on its upm-i' foco, Suid ici'ininnl clips hcing coniicctci to thc circuit wircs nud the othcr of which blocks projccts through the conduit )ipc to coo iciiitc with thcI iiist nuiiicd iiiock to who I v inclosc the circuit wircs.

3. ln conihinution with no ordina-ry cvlindriciii waitcr-tight. conduit pipo, 'two hloc 5 of instituting iniitci'iiil onc of which is icccivcd within thc pipc und conncctcd to thc. circuitwitcs thcrciii. Suid circuit wircs triivcrsing 'thc uiipcr cxlioScd foci of thc block, und thc within a. conduitpipc and having a face which lics opposite thcl opening through which thc block is inserted, said fece adnptcd to support the. circuit wires, and a. second block having n threaded shell ositioncd on thc outsideof the conduit un; co ei'iitiug with said finit named hlock to mit c cicctriciil connections for un incandescent hnnp.

6. in :i lmnp rcccitaclc. for wiring conduits, iin insidie block having c. int up er face .mil iidaptcd to hc positioned within t. ie conduit pipo through nn opening thcrco, wherehy such fiicc is picscntcd in cxposcd i'cliition toward sind opciiing and is adapted to support thc circuit zwires, n. sccond'hlock hiiving,y n thrcndcd shcll :uid ndiiptcd to hc positioned on thc. outside of thc conduitpipc, find moans whcrchy clcctricul connections nro inode for t :in incnndcsccnt lanip.

7. In n.' liiinp rcccptacle for wiring condiiits,`iin insidi` Mock uving,r n. tint uppci' fiicc.. with iuctiillic clips tlicrcoii, `mid chg-'is having tcrininui scrcws, siiid block hcing ormcd to othcr of which projccts through thc conduit pipc, :ind clcctric. coiiiicctions from tin' cii'- hc inscrtcii through nn opening in the con- 65 cuit wirr` cxtcnding through :mid .iiccoud duit pipc and to ic. positioncd lcncath the g `\-.hlocl i#nid clcctriciil coniicctions living coincircuit wil-ns` with sind fncc, in cxposcd icla o plctcd hiv positioning siiid si-cond block in tion oppositc sind opcning whcrc i the torplucc. i ininul Scrcws um) hc tightcncd on thc circuit i' t. lii n lump rcccptncic for wiring conwircs froiu thc cxtcrior of thc iipc, i1 sccono 70 duits, :iii insidc block lowing nn uppcr fucc hlock hiiviug u thrciidcd shcll owing its ini- Q with iiictnllicv clips thcicon, u. sccond hlock dcr sinrfiicc foi'incd to ho poSitii-ncd on thc. :uhipicd to lic positioncd upon thc first und cxtcriiir of thc pipc,.iind incuus for making cojipcrzitiiig thcrcwth to forni pussugcs for clcctriciil conoci-,tions for :in incriudcsccnt thc circuit \\'ii-cs.s1id passages boing wholly lmnp when siiid second block is* placid in 75 such position. Y

In witncss whereof, I subs-critic my signor i turc.y in thc picscncc of two witiwsscs.

inclusi-d und continuous from onc cud of thc. t l lilock to thc. othci, und moans on said second liloclc for cstiihlishing clcctricul conncctions -l'roiii thc circuitwircs to an inciiizdcsccnt lump. 40l lli ai hiiop rcccptiiclc for wiring conduits, un insidie block ndnptcd to ho insci'tcd Writncsscs WM. M. S'rocxnuiocn, ALriti-:n iN. Pnoorok.

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