US998810A - Combined taplet or crossover and receptacle. - Google Patents

Description

, J. S.STEWART. COMBINED TAPLET OR OBOSSOVBB AM) RECEPTACLB. APILIQATIOI TILED {AB-23,1910.

998,810. Patented 3111125, 1911.

.2 &4. M

.dgauriixabxm JAMES S. STEWART, OF NEW YORK, N. Y., YORK,

COFIBINED TAPLE'I. 0B CROSSOVER AND RECEPTACLE.

Specification of Letters Patent.

ASSIGNOR T0 ANNIE STEWART, OF N. Y.

Patented July 25, 191.1.

Application filed March 23, 1910. Serial No. 551,193.

To all whom it may concern:

Be it. lfllOWTl that I, JAMES S. STEWART, a citizenof the United States, residing at the city of New York, in the borough of Manhattan and State of New York, have invented certain new and useful Improvements in Combined Taplets or Crossovers and Re- "ccptacles, of which the following is a full,

clear, and exact description.

This invention relates to that classof devices known as taplc'ts and cross-overs, such devices being .used for tapping oil from electric light. wires or the like, or for cros connec in the wires of ditierent circuits; the use 0 devices of this character being in many localities obligatory by statutory enactment and further being necessitated by the rules of the underwriters.

My invention has for its object the simplitication of devices of this character, and the provision of inexpensive appliances by the use of which certainty agains short-circuitin at such points is. assured.

rly invention also contemplates the combination of a taplet or cross-over with a re-- ceptacle or rosettc.

()ther novel features of my invention will be hereinafter set forth and particularly pointed out in the appended claims.

Referrin to the drawings which form a part heme? and in which like characters of reference designate like parts throughout the several views: Figure 1 is a plan of cross ovcr cap embodying features of my invention. F g. 2 is a side elevation of said cap. Fig. 3 is a sido elevatiou of the crossover base-block to which the several leads are respectively connected. Fig. 4 is a plan of the 'said base-block. Fig. 5 is a bottom view of the same. Fig. 6 is a transverse section taken on lin VI-VI of Fig. 4. Fi 7 is a transverse section of the assembled parts, illustrating the application of a lamp receptacle to, for example, my cross-over cap; and Fig. 8 is aplan of a taplct cap very similar in genera construction to the cross-over cap above referred to. Fig. 9 is a side elevation of said taplct cap.

Considering now the simple cross-over, the cap whereof has been designated 1. This cap is provided with a recess 2,'prclerably rectangular in cross-section; said recess extending nearly through the said cap as indicated in Fig. 2. U .011 the bottom of this recess are provide lugs '3 which,

if the device in question be merely a simple cross-over, may be formed'as" a sin le lug, if so desired. Grooves 4 and 4', the ottom walls of which slope radually upward from a point adjacent the ottom of recess 2 extend upwardly and outwardly from said recess and gradually approach each other in the manner shown in Fig. 1, for the purpose of brin ing the circuit wires which lna' be inserted thereinto out into proper-space relationshi with respect to each other; the spacing etwecn the extremities 5 of said grooves being substantially that of the grooves in standard moldingz I prefer to .provide also small protuberances or lugs (i at the extremities of each of the said grooves and substantially. in; alinenient therewith. the ends of the grooves in fact sloping upward over the inner sides of said protuberanccs, as shown at 7. These lugs serve to force the insulated circuit wires well up into the molding, grooves. The cap is .provided'with a plurality of screw holes 8, by means of which it may be properly secured to the abutting sections of moldingk This cap is preferably made of porcelain or some other insulating material, and a base 9 of similar material is adapted Mr insertion into the said recess 2, so as to substantially fill the same. This base has the form, more or less, in longitudinal cross-section,'of a trapezoid with flanges 10 outwardly extending from the ends thereof. Each of the sides of the trapozoidally shaped mass is recessed or grooved as at- 11 to a suilicient depth to afford free entrance thereinto of an insulatcd conductor or circuit wire. One of the entrances to the grooves so formed is indicated at 12, and i to corresponding exit' at '13 in Fig. 4-. And it will he observed that I the mouth of the groove at 12 is somewhat larger than the corresponding orifice 13. Suitable screw holes '14; ali'ord 'means for supporting said basefrom a molding. and the conducting wires may be led downwardly from the grooves of said molding through the respective apertures 12 aroun the roove 11, and up again at 13 into the lllOlt ing' groove. Each'of the wires so bent or led has the insulation removed therefrom at a point substantially half-way of the length of the bent portion, so that the bored portion of the wire may be clamped under or around th' screw 15, one 'of .whichisfdisposed upon each side of the biise' 9,-.

screwing into recesses in the material thereof -circu'it wire and positioningithe same for contact with the head of screw L Screws 15 areeach in mechanical and electrical contact with a metallic tongue 18, which forms an arm'or offset from 'a'conductive bar 19, one of which'is disposed upon each of the respective outer sides of the base. Bars 19 are somewhat Z-shaped as viewed laterally,

the middle ortion of each bar 1 'ing along a sloping e go of the trapezoida base. As viewed in Fi 5, the said bars 19 appear L- shaped the s iort arm of the L, extending partially over one. of the flanges 10. This member may be made of sheet metal and is bent'into proper form by means of suitable dies; the tongue 18 being bent downwardly so as to adapt the same for contact with a flattened portion of the groove 11, said tongue being further provided with the usual prongs 21. which aid in seating the conductor. in-properposition. The recess in cap 1 may be formed with a shelf or ledge 22, at each end thereof, as shown in Fig.1, and the cap maybe further cut away as at -23 in order to clear the head of the screw 24 which is in engagement with the bar 19. The cap should also be cutaway or recessed at 23"to afiord clearance for the short arms 20 of bars 19. It is obvious of course that the ledges 22 need not be provided, but said ledges serve to steady the cap in position "upon the base b their engagement with the lower surface 0 the respective flanges 10 of the-base block. The bottom surface-of the trapezoidal base is grooved at 25 for engagement withthe lugs 3 which further serve to steady the cap in PlflQQ'liPOl'lltS base.

The leads which are adapted to pass through thegrooves 4.- are afforded space between thebase'and the cap by reason of the 'tra ezoidal configuration ofsaidbase; such lea s passing over the respective flanges 10 and having-the insulation removed from a portion of each of the same in order to make electrical contact with their respective screws 24. It will' hence be seen that the around the projections 16 upon each side of the base; and being'respcctively secured in electrical connection with the bars 19 upon either side of said base. The pair of circuit wires coming at right angles to those first, mentioned pass downwardly through" grooves 4 and through between the spaces rovided between the sloping "faces of the use andits capy-beingin turn respectively secured m electrical connection by means of 'screws24 with the short lateral and 20 of each of the respective bi s19. Thus a lead approaching through the upper right hand groove 4 shown in Fig. 1, will be in electrical connection with the bar 19 shown to the left of Fig. 5, and will hence be alsoin electrical connection with the ri ht hand member of a pair of wires dispose at right angles to those before mentioned. In corresponding fashion the wire through the lower right hand grooved wi 1 be in electrical connection with the. left hand member ofthe pair of circuit wires. Recesses 25' afford clearance for the respective leads or circuit wires which rocecd through grooves t and 1t, should here noted that recesses 25 aid in disposin the respective leads in their 'predeterm1'.'1ed.po-

sitions between the oblique walls of the base and the shorter walls of the cap recess, when the cap is placed in position on said base. It should also be'observed that the crossover cap and base are both symmetrical,

Referring now to Fig. 8, it will be seen that I have provided a taplet which'is of substantially the same general construction as the cross-over abovedescribed, the base being identical with that used in connection with said cross-over and the only alteration in the cap-being the formation. of the latter with a straight side at 26, in lieu of the grooved extension; such extension upon the other side of the tapletbe-ing, however, identical with the corresponding portion of the' cross-over, r p 4 I may provide my cross-over'or taplet cap with means for'the application of a lamp receptacle, rosette, or like appliance thereto, and Fig. 7 illustrates such a structure." The bottom of the cap, in this instance a crossover, although the same obviously might have been the cap of the taplet equally as well, is recessed as at 27 for the reception of a receptacle base 28, which is adapted to support the usualthreaded shell 29'. into which'the lamp or other apph :nce is socketed. The center in or screw 30 of the lamp receptacle exten 5 up through the receptacle base 28 into threaded en a ement with an enterin aperture in the bottom 0 tie cross-over or taplet cap; the threaded end 31 of such screw extending entirely throu h the insulating material of said cap. 11 corresponding fashion, the screw 32 extends upw rd from side of theta let or cross-over base. Bar

- 19' is'substantiallythe same as 'bars'lfi herecentrally disposed pin'BO in.the manner above described.

- I particularly wish to direct attention to a. feature, not previously referred to at length, namely, that the confi ration of the cap and base'is such that t e outgoing wire whichemer through the upper right hand groove 4, o the cap shown in Fig. 1,

, can b no possibility-contact with the corre .spon mg outgoing wire which is emer ng from the adjacent orifice 13 in the base; since by reason of the relatively small size of said aperture; the wire dis osed in groove 11, will be sharply bent and held out of contact with the wire in groove 4, by the posterior wall 36 of said orifice 13. 7

It will thus be seen that my taplet and cross-over construction, while extremel sim lo and inex ensive of manufacture, a for s every faci ity for making connections thereto from the respective circuit wires, and further provides means whereby a resette or lam receptacle may be secured thereto; drawing current from the respective wires with which the base conductor bars are in electrical contact.

It is obvious, that when the taplct is used. the incoming lateral wires do not exten therethrough; the ends thereof being merely connected to the respective screws or binding posts 24.

Having described my invention, what I claim, is:

1. In an electrical appliance adapted to be positioned on a molding having longitudinal grooves, an insulating baseof substantially trapezoidal cross-section having recesses in t ie respective sides thereof adapted for the rece tion of circuit wires, conductive bars secure I to the said base, having lateral tongues upwardly, extending) into said grooves, said tongues carrying hiding-posts and a portion of each of the bars proper also.

carrying a binding post, and a recessed cap having grooves outwardly extending from the recess therein adapted forthc reception of circuit wires cooperating with said base to the end that the respective sets of wires may be directed toward their respective binding posts. I

2. In an electrical appliance adapted to be positioned at the junction of two divers ective;, terminals of sai gent lines of circuit-wire moldings, an insulatin base having overhanging ends and reeesse sides, the latter being adapted for the reception of circuit wires from one of the moldings, an insulating caphaving a baser'eceivin -recess therein and grooves opening into sai recess, the overhanging ends of the base co acting' with thewalls of the recess, when the parts are'in assembled relationship,

to form conduit's'for the wires extending from a secondmoldingthrough the coves of the cap, and tlie'recessed sides of t 1e base co-acting with walls of the recess in the cap to hold the first mentioned wires in place and to'insu'latingly space the same from the second mentioned wires.

3. In an electrical aiparatus adaptc'l to be positioned on a-molding having circuit wires, an insulating base, conductive elements carried by said base for ailording operative electrical cross connection between two anguiarly disposed and. distinct sets of.

circuit wires, a cap for said base, spaced from the respective angularly disposed walls thereof at predetermined points to accommodate said wires, and a contact making device carried by said cap, parts of which are in electrical connection respectively a with the conductive elements aforesaid and the terminals of an electrical appliance.

4. In an'clectrical ancaratus adapted to bepositioned on a mo ding having circuit wires, an insulating base, conductive elcmcnts carried by said'base for ailording operative electrical cross connection between two 'angularly disposed and distinct sets of circuit wires, and a receptacle base having means for rigidly sup ,orting the same contiguous 0 said insu atin base, the rebase being in e ectrical; communication with said conduc- ,tive elements.

5. In an electrical appliance adapted to be positioned on a grooved molding having circuit wires, an insulatin projections thereon insertililc into and en gageable with the grooves of said molding proximate the points where the circuit wires emerge therefrom, the'bottoin faces of saTd projections bearing against the groove held portions of the w res to hold said portions down firmly in the bottom of the molding grooves.

In witness whereof, I subscribe my signature, in the presence of two witnesses.

. J AMES S. STEWART.

Witnesses: Wanoo M. CnArIN, James Dr: AN'roN-ro.

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