US882892A

US882892A - Electrical protective apparatus.

Info

Publication number: US882892A
Application number: US18805604A
Authority: US
Inventors: James A Kenny
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-01-07
Filing date: 1904-01-07
Publication date: 1908-03-24
Anticipated expiration: 1925-03-24

Description

PATENTEDMAR. 24, 1908.

2 SHEETSSHEET 1.

MN Qhil vN MN RN :iL v fi w l I I 1'7 I! I I l h) RN J. A. KENNY. ELECTRICAL PROTECTIVE APPARATUS.

APPLICATION FILED JAN. 7. 1904.

No. 882,892. PATENTED MAR. 24,1908. I I

J. A. KEN my. ELECTRICAL P V APPLIUAT ROTBCTIVE APPARATUS.

his 15mm: I I

UNITED sin mils JAMES A. KENNY Ul" CHICAGO, ILLI NO ZtS.

, ELECTRICAL PROTECTIVE APPARATUS. t

' y no 882,892.

)fentetl certain new and useful improve- .ments in Eleetrieul lroteetix'e .kppm'ttus, ol' lgwhieh the following is a lull. 'elear, z'tntl exnet t'lt sorihtion'. 1 "This invention. while suse-eptihle of use so ltif'far ascertain of itl'eatures tre eoneernetl i'nother sittmtionh. hats for its ohjeet more ffijtflllltftllfill)"to provitle imprm etl means for fgnartling telephone. telegraph or like instrul Xl(-1ll-S and the users thereol'\ against injury "fionrlightning and high tension currents f t-hut may inrzttle the circuit in w hieh sueh instruments are etnplovetl;

' The invel it ion eons 5th" in-the featurea ol' 'l ip'rqyenient hereitnil'ter tleseriliet l. illusitetlin the a -eo npanying tlrztwit'igs illltl partitiulurlv pointed out in the elziinis at the end of thisspeeiliention.

Figure} is a plan rieu'tpmt's beingshown section) of an zlppztlzllllfi einhtitlyingflny ES im'entiOn'. Fig 2 is i View iu ,itle elei'zitioii lhg. 3 is n \'l(\\' in \'tillt'ztl (-i-tmgelion1m LlineQl -Ql, (i i-Fig. t. lii fll lrl t Similar 'iew on line -l'--f-4,'ol' Fig-.1. Fig. '5 is n siinihtr ;.\'ie f}online 5 5.. ot'l ig. ,ll lhll phmrie'wf ot one of the t'zltlnnir ;A tlesignutesthe lmse ol' theapparatus. tliis lmse liein; lpinietl ol' an suitul ile ins'ttl:i-tii1;: material, sun-h as. llill'll rnhher, \"ultniZet-l lilier,porcelain or thelike.

for nse in t n nll lllt'tztllle telephone eirenit nnl the .Hltt'lllllllSHl ,tTlll]) lt \'ttl to. prevent l.. llljtll' from lightningor from high pot nt inl 40. currents that mu ytrespassnponthe line eir- -'1.cuit, is shown as tluplieittetl for the twositlesthe invention"shown. there is mounted at each side. (if-the vert'iei l long-itnthnztlrenter "of tlw hasel, a pair ol'enrhon-holtlers that adapted to enter a. corresponding groove in Specification of Liecters Patent.

Application filed Jan-nary 7. 1904. Serial No. 188,056.

vln the m'eo'tnpanting drawings in in,\en il'on is show 11 as more purtleulatrl' :nluptwl One ot' these e-zi-r-hon-lioltlers,'

the periphery ol" the earlm n B. The purpose ot the rib is to more securely retain the 'eurhon ll within the socket aml thewalls 01" the eup 2 will h'z'n'e sutlieient elasticity to permit lhe eurhon B to he l'oreetl tlowtiw aird t until. the rib b enters the groovelin the periphery 0 1 the eurhoir he runlm'etl. :1 hole '--l Inn hc' l OIlBttl in the wall ol the socket o" that it" ioixitetl in'struinent Inn)" he tl irnht lttlltztlll the c'arboh to loree it from the soeket. wall ol the gocliet =2 tinttons to enable theeurlmn' to he in'or remlilr set in positioi'n The upper mn'lm ii-hohler pre-lergtlilw"cOnlivltji that pztlsses tlll fUtl gl-l the upper rilrln'in 8'." this nppet utt t'u'rinetl' wit h neentral hole and with rc'otnitersunlt portion to receive the nut ti on the bolt ol' t he t'zuhtln-holtlel'. li'olt 3 poses through :1 eross-lm-riti of ins'ulzll in;- lllit terinl. suitable washers beingpreferztl1l [ilnt'ttl I v where the limit ipu ssesthrough The soelufttorinetl in the upper .eitrlion B t6 ret't'lie t he n'nt (t nitj: he of ihl i'goinilshapeto more seem-eh retd in Zthe nut in p i.)sit ion..

sists at The pair of eurhons llfnnel l) beneath thev o pomte engl ol' titeinstilztttng but correspond Hi :tll l'espt't'ts, to the ezn'honb lj and B. zti nl the holders for these eurhong a1e. .tl1e s'zttiiens the lmhlers sho'\\'n.':it the opposlte Slllt ol' the instrtrz nent.

.(outmll x fthipttgli the instil :tingihuriO is lo rnletlhz hole throngh whieh pushes it 'Ve-rti mi! l'tltl lt'l."v h v..lowe1 entl ol whieh entlhiS rml ltti's provitleilnt its lower portion with'n slee ve oroll'set ll against which hears the lower einl of a eoil spi'ingli. the updei' einl of this spring; hearing against the utnlernmlh inrinsetl position. The upper end of the llltl lt) is.serew -thretnletl 'zu'ni' is fi=tted with a -11ut ll; tllltljjalli tlt1l*- llr;$t) that the position ol the hm nut hettuljustetlas (le- 4 propel relati u'i with respect to eaeh other,

;l]le -trienl ptrotee't ve (ltVlttS have hereto ..l'ore heen eonstrueteil in whi'ehtwoee trhons are plneetl zttlpreei t eneh other with Insulating strips of llllC-il-"() l',,Slllljlill -natrizil be: tween them, the purpose of such devlces hem tov permitthe slitirt-en'eu tmg of hlgh thepe rl oration ol' the mica strips whensuc 'lo'perniit the carbon to Jon being .Hltlt of the l Jtll' t. illltl serving: to, llOltl it nor-v.

The peripheral only he Spill or hon c011- iii oppositesi le of the hn-r (3 potential currents through the earb01i$ l) within the depressions in the face or faces of.

high potential currents trespass upon the line. Such prior device however is ob'eo' tionable, because when the mica strips or ike insulating material become punctured by the passage therethrough of the high potential currents, there is danger of articles of carhon lod ing in the opening 'ormed through the insu ating strip and serving to shortencuit through the carbons and through the hole in the insulating strip, the low potential or normal current of the circuit.

One important feature of the present invention consists in forming the opposing faces of the carbons with elevations and depressions so that in case particles of carbon should become detached by the message through the carbons of high potential currents or otherwise, such particles of carbon will not serve to effect the short-'circuiting of low potential or normal currents of the circuit. Preferably the opposing faces of both the upper and lower carbons B, B and. l), l) are formed with rooves and ribs l), b and d, d, the ribs or elevations of the upper carbons being arranged opposite the correspending ribs or elevations of the lrfwer carbons. llence'it will be seen that any particles separating from the carbons (either because of the passage of high potential currents therethrough or otherwise) will lodge the carbons and will not serve to short-cireuit;the low potential or normal current of the circuit.

The lower carbon-holders? rest upon and are preferably connected to a union'strip 15 having an offset through which passes a bindin -post 16 that is furnished with nuts 17 am 18 and from this binding-post- 115 a suitable wire lh'will lead to ground. The bolts 5 of the upper carbon-holders pass through the up )er ends of the spring contact plates E and C, the lower ends of which springs rest 11 ion the upper face of the base A and throu li the. lower ends ofthese contact plates in and F1 pass the corresponding binding-posts .20 and 2!. and the lower ends of the binding )osts 24) and 31 are prefe'rabli' embedded in the insulating plale A. Each of the. binding-posts 2t) and ll is provided with the

usual nuts

22 and 23 and to the hinciing-post 20 is connected the leading-in wire 1 of the. circuit, while to the bindingost 21 is connected the leading-out wire F. ihe binding-posts 20 and it also pass respectively through the metal base stri is g and g whereon rest the standards (1 not (i. lrcferablv, although not essentially, each of the standards (1 andfl is formed from a single strip of metal bent as shown more clearly in Fig. 5 ol" the drawing, and the open expanded bottom portion of each of these standards (i and (i' is connected to the base A by means of a bolt 25th:. passes through the corresponding strip g org. To the yokeshaped upper ends iil the standards G and.

G are plvotall connected. as by bolts 27, the rear ends of the fusewasings ll and ii that carry the fuse wires ll" and ll res iectively, each of these casings being of like construction.

in the )referred form ofthe invention the casings il and ll, which are formed of suit able insulating material. are provided at their rear ends with metallic ferrules It having tubular screw-thrciuled shanks It with which. engage metal sockets J, through the rear extensions j of which sockets pass the pivot bolts 27. The front ends of each of the tubular casings ll and ii are similarly provided with metal ferrules It, the tubular screw-threaded portions h" of which pass through a switchshandle bar K of suitable insulating material and are engaged by the threaded nuts if. The fuse wires ii and ll at their front and rear ends are soldered or otherwise suitably connected respectively to the tubular shanks 11- and h of the ferrules h and h Beneath the forward ends of the tubular casings ll and ll are mounted the metal posts or standards M and .\l'. eachof these posts being provided preferably with spring jaws m at its upper end to receive and yieldingly engage the ferrule h" of the corresponding casing ll or ll. Each of the posts M and M is suitably secured to the base A and these posts M and M pass through

metal strips

30 and 31 through which pass respectivel the binding-

posts

32 and 33. These binding-

posts

32 and 33 are furnished respeetiveljv with the usual clamping nuts 34 and from the binding-post 32 leads the outwire N, while to the binding-post 33% is connected the in-wire N of the circuit. The switch bar K is preferably furnished with a handle i" whereby it may be conveniently mani ulatcd, although if desired this handle may ie omitted.

From the foregoing description it will be seen tlrat the low potential or normal current entering by the. leading-in wire l will )ass in manner well understood with those familiar with this class of devices, through the f use-wire ll' and connections to the outwire N, to the instrument or instruments in the circuit. and returning by the wire N,

will pass through the fusenvire It" and con nections to the leading-out wire F. in case lightning or high potential current should in-' vnde the circuit, as by the leading-in wire F, it will pass through the strip l), through carbons l3 and ll to base plate 15 and out by binding-post Hi and ground wire 19 to the ground. The working circuit and theim 'strument or instruments thereon will thus be protected from injury. v

llaving described my invention what I claim is new and desire to secure by Letters Patent is:

l. A protective. apparatus for electric cirami the UiiiPIUF 'wiiiriiis prov vuits com irising a rinse-board, cup-shaped carbon hoiilrr iixrii #0 said biisr board. :2 post on said imsv-boziril. an arm aiijustiihiy rarried on said post and. a pair of (a riion disks one rmnovahiy svcureri to said arm and The other rvmoviiiiiy hold in the hoidor on said basv. said carbon disks having oppositviy riispusmi donations ()liiiliil iiiijilll'i fairs, suhstmitiiiily as ilvscriomii .3. protvrtiviapparatus for oiwiriu cir- (*Hitr; romprising n imsv-immii, a pair of (HT- lmn i'|lliii(!' iivurl ihvroiu. :1 post iixmi to said base-imam! inirrmodiuiv sniil carbon hoieirrs. n ("was iirm lilijlirliiibiy inouiiiwi on said post and two pairs of mirhons, two of'rrhirii are romm'iilii Siililii to ssiiil iiiiii'zimi two oi which air romovoiiiy nrrim rml within said (:Hifmll hoiiiora. sisiastuiiiiaiii as described.

3. A protective zippzirzii ms for oirctririii virmiizs Comprising two cnrimix-holder s, on? oi \siiivh is provided with iuiziiis wiiorrizy it. ma; he eiectrioiiiiy runner-tori to the ground iiimi 'wi'aii inool'is whoroh it may he. or-Triroii r-oiiiieoiozi 102i tolopiioiw or like circuit, ow M has; of rho op iosing fares of {he miroons srriei ilfl -iilt being): formed wit ii eior'o tiUZk-S and J h 31 s )ring for separating said BDLi'SCWHV mechanism for adjusting said car bun-holder? reiativoiy in each other.

4. A protootiw aippomtus oioo'trioal circuitscomprisin 'wzo carbon-holders one arrrmgeii above Lilo oihar, a, oorhon oiook within e o-ii oi said hoiriers, a fiezriiiir spring support for one of said carhon-iioirirrs con nesting the same an aim iwriiiiiga circuit and eieoti'ir'sii coimeixtioii for uniting: the other of said carbowiioiaiors in ground, 8521i moons; for adjusting saiii CiNi)i)'i1-ilfii i9F-S roisifiivoiy .to each other.

5. A protoosivo apparatus for electrical circuits comprising two pairs of oarbom hoiriers, o base supporting the lower one of the CRH'bUiPiIOiiiPTS of each pair, a connection uniting together the upper carbon-holders of each pair a spring for sepziratioq SRiKi czirbonhoiriors and screw mvc-hanism all? simultaneousiy adjusting the carbon-holders and their vnriions roiativei to Pauli other. I

5. A protective :ip iarotus for electric cirw riots. comprising ii arr board. a carbon holder thireon romprifiuig a continuous ring of spring mvtzii having on iiiiiiuizir, inwardly extruding: rih at its outerportion, abortion (iisii rmnmzihly fitting in mid hoifiiei and how in an annular recess adopted to he engagrd ii said rib anri a second carbon disk odjiistaiiiy supported adjacent said carbon holder.

7. A proteotive' apparatusifor electric air omits comprising biaso o pair of carbon for supporting the lower oi sairicarbork holders, a vertically a ijiisibooio spring-sup ioriod hair for carrying the upper one of sa d corboo-hoiiicrs, said upper carbon-holder cmiiprisin; a, boit sus irorieii froiri said bar, and cariioii oroviiioi l with a perforation to receive said brill; and beizw coon torsuiik above tire lower end of said generation:

JAMES A. Emor- W5 mosses:

rimiiirrrgx 'ADAMICKQ, Lruirim Pm:ai'rioo