US908174A - Combined fuse-plug and circuit-closer. - Google Patents

Description

I. F. VINDEMORE.

COMBINED FUSE PLUG AND OIBCUIT ULUBEB unicum! num un. 1,l nos.

908,174. Patented Dsc. 29; wos.

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F. F. VINDBMORE.

OOHBINBD FUSE PLUG AND OIEOUIT OLOBHB.

unicum! rma un. 1. 1m.

908,174. mem nw 29,1908.

I Ililll-IRBIT I.

WITNESSES INVENTOI? M /ndemore ATTORNEYS FREDERICK F." VINDEMORE,

PATENT OFFICE.

' "COMBINED FUSE-PLUG AAND CIRCUIT-01305123..

Specification of Letters Patent.

' Patented Dec; 29,' 1908.

Applicationled Hatch 7, 1908. Serial No. 19,682.

To all whom it many` concern:

-Be it known that LEBEDERICK F. 'VINDE- uonn, aictizen. of the United States and a resident of Fairvievwin the county ofr en s .and .Stateof NewJersey, Ihave invente a new and-Improved Combined Fuse-Plug and Circuit-(208er, .of .which the :following 1s a full,..clear,. and exact description.

This invention relates to certain improve- 1o ments in; means forclosing wire wireburn out, the- \entire. plug may. beremoved,. the electromagnet secured to a new 25 ph, .and the latter replaced in position.

' my improved construction 4promfide an electromagnet adjacent theplug and adapted tozbe operated by the elo of a secondary. :circuit Theroperatxon o the electroso magnet serves to'close the -'circuit adjacent the plug and :permit the'rpassage of the cur- `:trent throughsaid. lugand its fuse.

Reference is to had to the accompany- .ing drawings, fo a part of this speci- 35 .catonjn whichue'- r characters of .refer- -..ence..-indicate correspondjngparts in all the .:Egureg-.andin-whic f- Figure 1=. is aoentral-.longitudinalsection through a device constructed in accordance 4o withr-m invention. and sho diagramyuan -mangementof t -primary and secondary circuits; Fig. 2 is e. section on thelinc 2e-2ofFig. 1; Fig. 3 isawiew of theI innemend ofthe socket for receiving the plug, 4 -5 together with .the mechanism for holding the =.same=in-place;.and Fig. 4 is a. lan view of .oneorni4 csf-connecting membertween the :zphandzone ofthe main conductors.

thespeoic form-.of my deviceillue- 5c trated intheiaccompanying drawings, I em- :ploy: a base A of unsulatlng material and `adapted tobe secu-red in an'ly: suitableman- :.ner to the-.wall-.or he base 1s prol@vided withrtwortransverse. grooves for fre- 5t eeiving and supporting the two main insulat- .inghconductors 1L and .12, and is also-provided with a flange or wall 13 for se arating :the socket which receives the fuse 'p ug from said conductorsz so as to prevent anyossibihty of short-circuitiug t edevice. a tthe opposlte side of' the curved wall-13 from.said conductors, there is secured in place-a socket 14, preferably formed of .sheet metalha'nd threaded to receive the plug 15. 'Thesocket is rlgldly held in place, preferably .bywthe mechanism illustrated in detail in Fig: 3. '.lha inner end of the socket is provided with inwardly-directed flanges 15., and ex .laterally into 4the opening in theoideothe socket and with. the. inner surfaces of thetwo flanges, is a clamping plate=.16. The plate is providedwith a central .aperture 17= and two smaller threaded apertures 18a in the portions .overlappiingn the im: es .-1'5. Two screws 19 exten outwardl m..the inner surface of thebase throng a portion thereof and through.the linges 15% intmthe threaded apertures' 18 oftheisaid;-.clamping --plate The lower end: 2010i the-clam plate is provided with an aperture. throug which extends a-co mbined clampin screw and binding post 21, which serves or. olding the claupixg.- plate tothe4 baseand also pernts 1attacl'rrrifllent if erwire 2 tosd c ampmg ate.; soc et-14ist usrigi y held in plltceA and electrically conneetedto the binding -post 21 and wire'22.

Screw-tlneaded into-.the socket -14- is the plug 15 dpreviously referred-to. 'Ehebody .23 of sai plug is dpreferably formed of insulatmg material, an encircling the lower portion thereof, which screws into the soeket; is a shell or cov -24 osheet metal. :Extendlng outwardly t rough the center of the l is a .tube of mediating-material 25, .whic 1s s scedfrom theouter wall toleaveen annular ber, within :which is; disposedmheuse 26. The fuse lttt-.one end iis-connected through an a rture in the sidewall to the outer met casing 24,A and cormeeted atthe' other :end with a collar 27. at the inner exposed .end ofthelug. Exten throught the tube-25 is aro l28, havi aco ar-29.carried .thereby adjacentthe co ar 27 -ot-the plug, andthe inner-end of the rod extends-beyond the eoll.lar through the aperture 1-7 of theclam g plate 1-6 and through anaperture in the ase to the inner side thereof. Contact between the collar 29 or theA rodl2-8 with4 the clamping plate, is prevented by means of a disk 30" o =1nsulat' material within the socket` and between t e=co11ar-29 and the plate 16. The

rod 28 is longitudinally movable to brng the collar 29 into engagement with the collar 27, but the two are normally held out of engagement with each other by the action of a coil s ring 32 encircling the inner end of the rod. Sliiid rod is electrically connected to the c onductor ll b f a connecting strip 33, against one end of w rich the spring 32 engages. The strip extends through an aperture in the base to the outer surface thereof, and is there provided with a separate clamping plate 3.4, adapted to hold the conductor 11 to the strip upon the tightening of a suitable screw 35.

Encirclin the outer end of the plug 15, and prefers ly threaded to the body thereof, there is provided a sheet metal casing 36, serving to supportthe coils 37 of an electromagnet. The casing 36 preferably carnes two arms 38, connected at their outer ends by a cross bar 39, which latter supports the ets in the proper osition. y adjust-- ing the bar 39 longitudinally of the arms, the position of the magnets in respect to the lug may be adjusted. At the outer end the rod 28, there is provided an armature 40, adjacent the ends of the cores of the electro ets. The armature is movable to and m the magnets, the movement in one direction being against the action of the spring 32 and serving to brin the collars 27 and 29 into e ment wit each other and to close the circuit, tvhile the movement in the opposite direction is caused by the denergizing of the magnet and tension of the sp 32.

The current livered throu h t-he conductors 11 and 12 may be used or o rating any suitable device desired, as, for instance, the electric arc lights 41. The wire 22 from the bin 0' 21 leads to one of the arc lights, an t other is connected in any suitable manner to the conductor 12, as, for instance through a wire 42, shown in dotted lines. he electromagnets 37 are energized in any suitable manner, but referably from a circuit of low otential, inc uding a battery 43, wires 44 an 45, and a switch 46.

My mechanism is especially designed for use 1n places where the presence of the high tential current is objectionable, but where 1t is desired to frequently turn on and oli the light, as, for instance, automatically by the operating .of certain machine or mechanism. To mount a switch the electric lighting or electric power circuit direct-l f on the machine might result in accidente injury to the operator or injuriousl a'ect the work operated u n, but by closing the circuit thro h an c cctroma et and operating the latter y a current of ow potential, the wires and switch of the latter current ma be disposed at any point desired, without anger. il' liile the switch 46 is closed, the magnets 37 will be energized and the amature drawn into engagement with the cores thereof. This will permit a passage of the current from the conductor 11 throu h the strip 33 to the rod 28, collar 29, colar 27, fuse 26, casing 24, socket 14, and clamping plate 16 to the binding post 21. From the inding post, the wire may pass to the lights, machinery, mechanism, or other device to be operated, and thence back to the conductor 12. Should the fuse burn out, the armeture may be removed from the rod 28 and the plug screwed out of its socket. A new fuse ma be readily inserted and the device i'eturne( to its original position.

If it is desired to close the high potential circuit for an suitable len h of time and it is not desire to employ t ie secondary circuit, or in case the seconda circuit is broken or out of order, the p ug may be screwed into the socket until the collar 27 firmly cngagcs with the collar 29 and the circuit will closed inde .ndent of the armature 40. The normal istance between the two collars may be controlled at will by varying the distance to which the plug is screwed into its socket.

The device may be used in various diierent positions or with various different mechanisms, but I contemplate particularly using the high potential circuit for lighting purposes in connection with cop or other photographic o rations, and mount the switch 46 on t camera or other photographic apparatus, so that when the arts of t c latter are in roper position, the hts will be turned on, ut as soon as the sensitized plate or ground glass screen is removed from the camera, the secondary circuit will be broken at the switch 46 and the lightswill be immediately turned oi.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In combination, a base, a. member including a fuse and dctachably secured to said base, a circuit-closing member, and an electromav'net carried by said detachable member for operating said circuit-closing member.

2. In combination, a base, a plug detachably secured thereto and including a fuse, an electromagnet carried by said plu and means whereby the ener 'zing of said e ectromagnet closes the circuit through said fuse.

3. In combination, a base, a plug screwthreaded thereto and including an annular bod and a central tube a fuse intermediate sai body and tube, an electromalgnet carried by said plug, a rod extending t irough said tube, an armature for said magnet and operatively connected to said rod, whereby t 1o energizing of the magnet moves said rod longitudinally, and means carried b said rod for closing a circuit through said seupon the energizing of the magnet.

4. In combination, a base, a plug detachably secured thereto, a collar carried by said plug adjacent the inner end thereof, a rod exten through said pl and having means a ted to engage wit said collar to close an e ectric circuit, an electroma. et carried by said plug at its outer end, an an armature for sald magnet connected to said rod for movin the latter to close the circuit. 5. In com ination, a bese having a threaded socket, a plu threaded into said socket and including a a circuit-closing member carried by said plug and Within sai socket, and an operatintrlc-od for said circuit closer and extendi ugh said plug to the outer end thereo 6. In combination, a base, a member including a fuse and detachably secured to said base, a circuit-closing member within said base and beneath said detachable member, and an cperatinrod for said circuit closer and extending t ugh said first-mentioned member.

7. In combination, a base, a lug detachabl secured thereto a circuit c oser within sai base and beneath said plug, and an electrom et carried by said plug for operating said circuit closer.

8. In combination, a base, a plug detachably secured thereto, a collar carried by said plug adjacent the inner ond and forming a. portion of an electric circuit, a collar earned ly the plug at the outer end thereof an e ectroma et supported from said last mention collar, and a circuit closer Within the base and beneath the plug and adapted S5 to be operated by said electromagnet.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERIGK F. VINDEMORE.

Witnesses:

CLAIR W. FAIBBANK, Evenmin B. MAnsHALL.

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