USRE12640E - Branch box for insulated electric wires - Google Patents

Description

' REISSUED 311.23, 1907. Y

l M. `HAVENS,11.1 BRANCH' Box ron INSULATED ELEcTnIc WIRES.

APPLIOATIOI l'ILEDOYVI, 1905.

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' 12,640. nmsstmn APB. 23,1907.

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ATTORNEYS y l To all whom it may concern-.-

l State of `UNITED STATES PATENT oEEIoE.

MoRToN HAVENS, JR., oF I./tLBirNr, NEW YORK.

BRANCH BOX FOR |S`ULATED ELECTRIC WIR-ES.

Specification of Beissued Letters Patent. Beissued April 23, 1907.

Originll lo. 775,037. dated Novoixihei'I 1li, 1904. Application for reissue filed November 16, 1905. Serial 110.287.746.

Be it known that I, Moirroxv HAvENs, Jr., of Albany in the county of Albany, in the blew York, have invented new and useful Improvements v in Branch Boxes for Insulated Electric Wires, of which the followy ingrilsnf;l specification. V

invention relates to boxes for branchelements`hereinafter described, andset forth in the claims. v

ing'insulated electric wires and it consists inA the novel construction of parts and the novel arrangements and combinations of parts and The object of this invention is to provide, with a metallic tubular conduit, a box having vin it an'oblong branch chamber of narrow removably secured to the bo 1 andA areadtpted to hold'the branching wires z fied form of construction,

"drawings, in three sheets, forming a part plan of the same.

piece. Fig. 6is a section of the same.

width which communicates with said conduit for passarre of two insulated electric wires in either direction to or from the same,

with the wires separated and branched and suit ,fix in a box-closingpiece, which is at suitable istances a art.

,Other objects an advantages will be clearl understood from the' followin de-l scription when taken in connection witthe;

o this specification, in which- Figura 1 isfa side elevation of the branch box embodying the improvements and tubular conduit coupled together. Fig. 2 is a Fig. 3 is a vertical section. Fig. 4 is a view of theV box from its lower side. Fig. 5 is a plan of the box-cloing 7'is a view of an insulator employed in tllige is a view o the same from its stem end. Fig. 9 is a'. side elevation of a bo'X` with a modiwith parts shown in section. -F` 1() is a view of the same from an end of the ox. Fig. 11 is a side elevation showing another modiication of form with art in section.A Fig. 12.is a modification's owing a conduit applied to one end of a box. Fig. 13 is a view s owing an application of this invention to conduits for a streetlamp. Fig. 14 is a plan of oneend of the branch box with the' closing-piece removed' and showing a device for holding a seated inelevation of the samedevice. 5 54 ha pass e through individual insulatorsl ably entf of the box,-

' shown in Fig. 14. Fig. 17 is an inside elevation of the same. Fig. 18 is a plan of a modification of the branch box for coupling on two conduits. Fig. 19 isa modification forcoupling on three conduits. Fig. 20 is a plan of another modification for coupling on three conduits. Fig. 2 1 is alplan of a modification 4,for coupling on four conduits, and Fig. 2'2 is a la-n of a modification for coupling on vthe ox two conduits in alinement with the length of the body of the same.

. Similar letters of reference referto like parts throughout the several views. f

In this invention the drawings show branch boxes for coupling on them, respectively, one or more conduits up to four in number.v These several modifications shown do notrelate to the branch box itself, but to the situation and position of the pro'ectionsV provided with lscrew-threads for cou ling the box on the res ective conduits whic i may be employed wit it. I will therefore give. a particular descri tion of the novel elements I embodied in the ranch box itself.

In the drawings, A is a branch box embodying the novel parts and elements in this invention and com rises fthe body A -andclosing-piece'Ag. T e body A maybe made of cast-iron, malleable'iron, brass, or any other suitable alloy and has iii it 4the oblong 4chamber B, which is closed onfive sides by 'walls a a', and closing-piece A2, which is reinovably secured to the said body A', preferably by screws b passing through suitable perforations b and screwing into screwthreaded perforations made in the internal projectionsv c c, which project binward from` side walls a a and aregintegral with the same. This chamber B is of len tween three and one-hal inches and four inches in the clear between side walls a a, and is preferably about three-quarters of an inch in width, yet it may be of greater or less width, according as may be found to be advantageous for'readily receivingl two or more A insulated wiresW W. i

In body A", at a suitable point therein, is provided a screw-threaded perforation C for couplin conduit D, preferably iron, which incloses a negative and a positive wire, which.` after passa e out fron said conduit enterinto the cham er B and se ara'te andare spread a art Within said cham er and. pass out there om YthroughA the closing-piece A? at points aboutl th preferably be- IOO two and one-half inches apart or at such other distance apart as boards of underwriters or municipal or other laws may specify saidtwo'wires W lW' are to be apart g for insuring safety of wires' for preventing accidental burning of combustible substances in near proximity to the same. Provided on an outside portion of this body A is a guard a2, which prevents said bodgT from having close contact with a partition, wall, or ceiling or other part gf a building.

In Figs. 14 and 15 are shown two vertical projections 'a a3, -which are projected inward trom the end -of the body of the box, between which projections is vertical groove a, and in Figs. 16 and 17 is shown instead of said projections a a and groove a* the cavity a5, the p oses of which elements willbe hereinafter escribed.

The closing-piece A consists of an oblong piece of metal`of length, Width, and form inA correspondence with the outline of the outer Walls of said bodyr A', surrounding the open-v ing of chamber B. This closing-plece is rovided with two circular perforations E, their centers about two and one-half inches apart for reception-insulators F. In this el -piece are provided suitable notches e c, madein the circumferential walls of said perforationsE, vwhich notches extend radiall from the respective vperlorations to a lshort tance.

The insulators F are' preferably made of porcelain or glass or other substance which is a good non-conductor and -not inflammable. These insulators are duplicates of each other `and each comprises a ring-form outer portion f, circular stem j' of diameter corres ending with the diameter of perforations E F) in the clsingieee A', into whichV said stem f enters, an projections f f2 from the outside of said stem to -a distance corresponding with the notches e e made in the closing-piece A and extending vout from the respective perforations E, so that said projectlons j'z may pass throu h said notches e e when stemsf are entere into the respective perforations and interlock with the portion of the 'material in Which said notches are made. These 'insulators F are rovided with central perforations F, whic communicate, respectively,y with chamber B and receive each one oi the two insulated wires W W', which are in the chamber of this box and are branched in direction from each other as they-enter said chamber from the conduit D, inclosin bothI said Wires. The closing-piece A2 Wil have its insulators F inserted in place in it and be turned a uarter-turn,' so that the projectionsfzlirom stemsff may be in situation for register with vroove's a4, Figs. 14 and 15,Y or cavities a5 in i s.' 16 and 17 when said` closin iece is app ied in place to the open side o t e body A of the box. Thebranches .piece A2 is applied to the box. closing-prece will non' be applied 'to the box,v with one ot the projeetlois 1"2 of the steml of length of t of wires W W will be passed from the chamber o f the b ox and through the central openlngs rn the insulators F l he'or'e thtI closilzg- -'l he said each insulator entered into groove u* or rotch a5, when the closing-piece A2 will be secured ix; place on body A by screws b b. When secured in place, the insulators will be securelrl held from turning in either'direction. lil

l Fig. 3 the two insulated wires in said cor. duit are shown Vto be held adjoining each other by an outer insulating-covering, which outer covering is cut away or removed from the two separate insulated wires lodged in the chamber VB and projecting out' through the insulators FF; yet these insulated wires W may be contained in the tubular conduit D Without being bound together by a common outer insulating-covering.

1 InFigs. 1 and 3 this branch box Ais shown to lie colpled on the up er endofa vertical i conduit by its screw-t read perforation C, being screwed on the screw-threaded upper end of said conduit, and thetwoiwires assing fromsaid conduit into the chamberv are made to branch out from each other and respectively have passage out from said chamber through the central openings of insulators F F at suitable `distance apartt. be continued in direction and to a distance preferred.

In Figs. 9 and 10 this branch box is shown to be coupled to two horizontal conduits D Dz and in its chamber receives the ivires NV W"' from the said conduits when they pass out separately through the respective insu'- latorsFF. Y

In Fig. 11 this bra-nth box is shown to lie rovided with a st reW-threaded projection or coupling with a vertical conduit 'D and the box-closing piece A2, which is removably secured to the upper open side of the body A' ofthe box A; f In Fig. 12the box shows a horizontal tubular conduit coupled with it by one of its ends` being providedwith ascrew-threaded perforation, (which is not shown) into which the screw-threaded end 'of the conduit ma)v be s( rewed While the closing-pieceA2 is applied to the upper sidevof the body of the box.

In Fig. 18 this branch -box is shown tolfe provided with means for coupling -it with two conduits D. f

In Fig. 19 the box is shown to lie-provided with means for coupling it with three tonduits D, one at each end of the ltox and the IOO los

other at opposite side and at the middle of A ends with two conduits, and in Fig. 22 the i box is shown to be provided with means for -Coupling it to two conduits, which are exbox A is applied to and coupled with conduits C2 C'l of a street-lamp. (Shown in Fig. 13.)

The following is mv preferred mannerl of introducing into the chamber-B of therbox A the wires W' YV and arranging them in said chamber for their separation and leading out therefrom: The two vwires to be incased in the conduit D and then vto be. individually branched from the same and away from each other to an exit out from the chamber B, are

to be introduced into the said conduit after the box A has been coupled together by the means rovided. Then the wires W IY', assed rom the conduit D into the chamber of the box, areseparated, and one of these separated ywires `is passed through the central opening F' in one of insulators I", and the other wire is passed through thel perforation F in the other insulator F, when the (losingpiece A* will be placed over the open side of chamber B of said box, with the separated wires projected out from said insulators ,to a distance preferred, when the said' closingpiece A* will be secured in place on thefopei side 'of body A' ofthe box,.with projections f* of the insulators in the ooves afor cavities a", by the screws b b, wien the conduit D may be placed in osition and be secured inv place, with the si e of the box A having its guard a2 in' bearing against the partition,

wall, or ceiling of the building to which this box and conduit are to be applied.

It should be understood that conduit D may be of any suit-able length for .passage onlv through timbers or other material or for inclosing the wires .in their whole length between ceilin and floor or between partitions or walls, an when so inolosed the wires may be protected from injury, and with.V this improved box prevent accident to each separated wire 'and preventthe Wires having contact with inflammable.' substances.

Having thus fully described my invention,

what I claim as new and desire to secure b v .Letters Patent, is:

1. A branch box for wires comprising a 'hollow body open on one side and provided with an opening for the introduction of a wire, seats formed in the hollow body, afcover adapted to fit over the open face, openings formed'inthe cover, insulators having stops ning's andheld 1othe stops, said .Stops engaging t e seats o the hollow body,

wires outside of buildings and in open air as hollow open body formed with one or more perforations for the passage of wires, a detachable cover formed wit-h openings, de tachable-insulators in said o ienings, means carried by the hollow body w iih coact with the insulators tolock the latter to theiox and means for fastening the cover to tlie ox. 3. A branch box for wires comprising a hollow open body formed wit'h one or more perforations for the passage of wires, "a def tachable `cover formed with openings, the edges of the latter being notched. insulators having lugs, the shape of the insulators and their lugs corresponding to the shape oi th?l openingsv and notches, means on the box which coact with the lugs to lock the insulators against displacement, and means for fasi tening the cover to; the hollow body.

4. The combination with anexposed conduit for electric wires; of a'braiicli-'-box comprising a hollow body having an internal oby ong chamber for branching of the wires, and

having suitable means for connection with the conduit, and for permitting the tissage of the wiresiiito such chamber, said c amber being provided with an elongated opening in the niclosing wall thereof, and a removable piece for closing the elongated opening, such removable piece having means for permitting the passage of the wires fromsaid chamber and for insulating and spacing said wires, and clamping means for detachably securing said removablelpiece to the hollow bodv.

-5. The combination with an'exposedconduit foi electric wires; of a branch box cotnprising a metallic hollowbody having an internal oblong chamber for branchingiof the wires, and having a perforation for coupling said body to the conduit, and for assage of the wires into such chamber, said odk `,having a part thereof open, an clon ate l, piece for closing the open art of the ody, said piece being reniovab exfrom the body, Yand eing provided with means for permitting the passage Aof said wires singlyr kfrom the' Y body through said iece and for insulating said lwires and holdiu jthe same apart for Eburning of- 'combusti'- le substances in near proximity to the same, and clamping means for detachabl securing said removable piece to the hollow ody.

6. The combination with an exposed conduit for electricl wires; of a branch box 'com-v prising` a metallic hollow body having an internal Aoblong chamber for branching of the wires, andhaving its bottom formed intermediate of the ends thereof with a threaded perforation for coupling said'body tothe conduit, andfor passage of the wires to'such chamber, said'body having its top open, an

elongated piece for closing the top of the body, said elongated piece openings duit for electric wires; of a branch box comiece for om Vsai `spaclng said wires.

provided with an elongated opening in the inclosing Wall thereof, a removable piece for closing the elongated opening, and insulators removably mounted 1n said removable rmitting the passage of the wires chamber and for insulating and 8. The combination with an exposed conduit for electrilwilil'esl; of; rarlich box comprlsing' avmeta `c o1 ow o y aving an internal oblong chamber for branching of the wires, and having its bottom formed intermediate of the ends thereof Vwith a threaded perforation for coupling said body to the conduit, and for passage of the wires to such chamber,- said body having its top open, an elongated metallic piece for. closing. the topV said-L elo ated piece having openings/in its ends an insulators remov y mounted in the openings of the elongated iece for rmitting the passage of the wires' om sai chamber and for insulating' and s acing said wires.

9. he combination with an exposed conyduit forelectric wires of a branch box co-mrising ahollow body having an internal obong chamber for branching of the wires, and

having -suitable means for connection with the conduit, and for permitting the passage 2 of the wires infto such chamber, said chamber being provided with an elongated opening in the inelosing Wall't-hereof and bing pro-- vided with internal projections,V airem'ovable piece for closing the elongated opening,such removable piece having means for permitting the passage of the wiresy from said chamber and for insulating and spacing said wires, and screws passing through said removable piece and screwing into the internal projections. v

10. The combinationwith an exposed conduit for electric wires; of a branch box comprisinga metallic hollow body having an internal oblong chamber for branching of ythe wires, and 'having a perforation for coupli said body to the conduit, and for pasagel the wires to such chamber, said body having a side thereof open and having the lengthwise sides of its oblong chamber internalv rojections, an elongated piece for closing t e open side of the body, said elongated -piece Yavixlilg' openings arra ed betvveensid pi jecliol1lis and o the ody, t o w 'c openings Wires `assfrom theuiamber,the rtlons of said e ongated piece between sai, openings serving to space the wires 'apart for reventing ac cidental burning of combusti le substances in near proximity to the same, and

screws passing through said clos' pice and screwing into the internal rojections.

' In testimony whereo have hereunto signed my name in the presence of two at- .testing witnesses, at Syracuse, in the count of Onondaga, in the State of New York, 'thls 7th day ofbNovember, 1905.

MoRToN HAVENS, Jn.'

Witnesses z 'y S. DAVIS,

R. ARoNsoN.

portions of intermediate of the ends thereof formed with t eends the f

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