US1279201A

US1279201A - Headlight.

Info

Publication number: US1279201A
Application number: US21745918A
Authority: US
Inventors: Overton Winston
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-02-15
Filing date: 1918-02-15
Publication date: 1918-09-17
Anticipated expiration: 1935-09-17

Description

OVERTON WINSTON. F MINNEAPOLIS, MINNESOTA,"

TES

PATENT oFFiQE.

HEAntIGHT.

T o all whom itmay concern.-

-Be it'lmowi'i'that l, Ui'iiu'loN WiNS'rori, a citi/.en of` the United States. resid-ing at Minnealiolis, in the county, oli Hennepin Vand State of Minnesota, have inventml certain new 'and useful `Improvenients in Headlights; endl do hereby declare the following to be Ia tul|eleai', and exact `description off` the invention, such4 as will enable others ed inthe art-toirvliichv appertains to i y and use t-lie'aanie. Y l., pmseiitaini'cation related.,.tehmltlllgll .for auton'iobiles andother ve iig-les and is in v 86,852, tiled `ol: date,

sis

the nature of, or improvement on, or modilit-ation of the constrllotion...disclosed .and claimed in my peiidin application-S-N.

lilarch 21,1916, and entitled, Headlights, but is idirected to means adapting thelicafllight for multi? filaii'nent electric light bulbs. Generally 'sf'z'it`ed,.the invention consists of tlie`noveldevices and combinations of devices liereu mlb. some parts being broken iaway; and

Fig. is` a view ,corresponding-'to Fig. 1, li'ur illustrating a somewhat Vmodified conof the shank. The Iaid contacts r l y f The; filainent 2 has ite intermediate or bot The light bulb 'l has tivo filaments' 2` and 2, the outer ends of. which are'connected,

. ielspeetiively, 'to terminal wires' and 4 and fthe" inner ends of which are connected to an intermediate electrode, which terminal ivirls are located within tli'e bulb and Sup-f pla/led lrou'itlie shank l'l'le'reof. The shank ii fle bn'lb'lias three electric contacts 6, 7 l"l$.',that are electrically connected,`re yto thepcleetrdes, 4 and 5, with surroundedl by ay 'flanged' internallf the reflector.

' given adjustments, bothlongitudinall and 'socket are not necessary or `desirable wh rk Spcction 0f Lett, t Patent. Patented Sept. 17,1918; Application led Aprillll; 1916, Serial No. 91.228. Renewed February 15, 1918. ASerial No. 217

the reflector, it will be above the nig-Off de the-reflector. u

The reflector 9 has an axial opening and threadedwannular Vanchoring plate 10. T e metallic sleeye Bofftlieligl'itbulb is vided with plurality of'radially pro] ting. lugs. 11 adapted to be inserted `through .a correspondin `internal longitudinalfgrooife 12 of a lam) ioldingco1la'r 1,3,A and to engaged wit a serrated or Ierrugated tei'nal shoulder. `14 of said collar. 'llie colli 131s `prgwidel at itsiniier endwith'an c centric externally threaded lImrtionftha screwed into theinternall-y threaded porti,` of a` socket tube 15, whieh,`in ti1 rn, ifs ,Sorely 'threaded `into the annular. micliiing` 10 and is thereby rgidlyflildf in respectltb The holdin. collar. 13 l and socket tube 15 afford abul n l'iol`diii.,efr socket, l

by means of which the light bulb maybe"fffy transversel of the Aaxis of the rereetr. The oscil atory .movements olf" the "p a mult-iflanient/light liulb is ,employed,"ai`id l consequent-ly'. the relatively ffixed meriiblir of' the lamp socket' is rigid or noila'd.]il`eit` able, in respect to the yreflector'. L. The holding collarl'of thefsocke :.r a centering ring 16 seciiredtokind carried by its" inner end"portiohl Ihfefpa sage `through the centering.ringdG-isfconeen to the axis of the shank` engajgingthe Vfli'it end of the collar 13, andaehnseqiientl'y in all of the rotary adjustments of 'siiidj el jwill be concentric to theL shank of the'el 'tricli ht bulb. f

In?, ie outer end of the fixed tubularni i' 15 of the l'amp'socket is a-plug` or bloeltjI-T of ins'ulatingl material land projecting axialllyrf" forward therefrom is' at forwardly spring-e105 i pressed contact plunger, the head of Vwhich normally Spring-,pressed into engagement with tl'ieiaxial contaet`8 `of the. light bulb.) The numeral 19 indicates-'a coiled ,springt2U which is extended throughfthe centering?lill)` H ringI 16, re-actini.'` .against the insulating l 'block 17 and has electrical Contact with the annular contact ll of. the light bulb. The

` anchoring late 10, andif l I 'spring interposet .lower filament sleeve contact tiof the light bulb is grounded through vthe collar 13, socket tube 15 and @connected to a circuit lea, 20, ,"oontact plunger 18 and sprin 19 arc'co respective to circuitdea s 21 and 22, diagrammatica-l y sh'o'wn in F' t, 1. Obviously, whenthe circuit is cl throu h leads 20 and `21, the. 2 wi be heatedwhile, when the circuit i'sclo'sed through the

leads

21 and 22, the upper ,filament 2* will be heated. By reference to 1, it will beI noted that through the passage thereof, the centering sleeve 16 is tapered and that the inner. portion of the contact sprin l19 is' sli htly contracted, so that the sai spring wi 1 not s ring out of working position when the light ulb is'removed. orward movement of the contact plunger 18 will also be limited b the usual or any well known means. s shown, the heai--of the said contact plunger issagrouned by an insulating collar 23 thatJ prevents,l electrical contact. between the samepand the surrounding contact spring 19, under all conditions. The numeral 24 indicates a short coiled between the plugr 17 and the centering colar 16,`and which simply serves to take up play between the threads of the eccentric 13l and socket tube 15, and

by producing increased friction, prevents accidentalrotary movements of the collar.

The centering ring 1G isof insulating material so that electrical connection will not be made between the said collar 13 and the contact spring 19.

Theconstruction illustrated in Fig. il is like that illustrated in Figs. 1 and L'. with the lfollowingr exceptions:

I nstead of the spring centering ring arto keep the fronty end of the contact sprl 19 centered in respect to the shank of the light bulb, the bulbl holding collar 13 .is provided with an insulating centering the passage in which is concentric to the axis of the socket tube 15, and, consequently, eccentric to the axis of the shank of the-light'bulb. 4Instead of the two springs 19 and 24 used-in Fig. 1, the construction illustrated in Fig. 3 employs a oiled spring having'relatively large and small sections 25 and 26, both of which constitute part of one of the electrical contacts. The rear end of the lar section 25 re-acts against the insulating lock 17 and against a shoulder on y -porti'on 26 of said the centering ring 1G, whereas, the small spring is extendedthrough ring;` and engages the an thepassage' of said the light bulb.' ,The said nula'r contact 7 of s ring'25--2G, therefore, serves the combined unction of 'a spring contact and ofaspring taking up play between the threaded engage` ment. of the collar 13 and Socket -tuhe l5.

collar 13, Vin the. construction4 illustrated in Fig. 1. is rotated, the frolitfend of the spring 19 will be kept concentric to the shank ot' the light bulb, and when the socket of the construction illustrated in Fig. 3 is rotated, the front. end of the spring scction 26 will be held always concentric to the axis of thc socket tube 15, but. 'will be eccenF tric to the shank of the light bulb, butl nevertheless, always in more or less contact with the annular contact ring 7. The arrange ment illust rated in Fig. 1 is believed to be tbc most practical of thev two .constructions illustrated, but. either form will be found perfectly operative and practicable.

Obviousljlv, undci' rotary adjustments oi the bulb holding collar 13, the threaded en gagement between the same and the sockel' tube. 15 will impart adjustments to the light bulb, longitudinally to the axis of the reflector and will also adjust the light bulb transversely of the axis of tlierefie'ctor, or in a plane that transversely intersects the` axis of said reflector andof the lamp. lVhen the shank of the bulb is pressed rearward against the tension of the spring contact 9c plunger 18, the collar 13 may be adjusted without rotating the lamp, and by these compound adjustments, the filaments of the light ullb will always be properly set in respect to the reflector. 5

It will be noted that the shank of the electric lightbulb, atits end, is formed withv a. conical boss that projects through and be yond the annular intermediate contact 7 and that the axial contact S is applied on the ex? tended or truncated end' of this boss` T-lfi'iiiV construction is important for the. following. reasons: Then the bulb is removed from th" holding collar, the. outer end of the cont spring 19. or of the contact springs' 25 and? 26, as the case may be. will project out into. the collar 125 .unich 'farther than shown in the d rawings and will project through and liro|rx y the insulating centering ring. Then th` bulb is inserted into the-holding collar, tlconical boss will come into engagement with the free outer end of said contact sprixgf-l and will immediately centerv the same 1n spcct to the shank of t-he'bnlband bring-'the same into proper engagcmellit with the inter- '115 mediate contact 7, and moreover, as the bulb is forced into 'interlocking engagement: with.

the olding collar, the said boss willfmainiV T`l tain such proper enneigement. between-"Whe said spring and the said intermediate corr-@filati cantaor A Y a back thereof, a bulb holding collar pli'ovigev iaving-t'irea e with an leccentric portioii D engageinent with the interior ofsaidsocket ti"ibe,ii forwardly 'spring-pressed axially lo- 6 cated contact",plungerv within saldi".socketl tube, a.[coiled`contwt spring-within sind" socket `and an insulated centering ring Qni-neii-bi/Stid 0911er und' engaging 'the front poi-,tion ofsaid'coilcd contactspring` 10 i `3.\Iii a headlight, the combination with a reflector, of a Socket tube siipliort'ed atthe' back thereof, Va bulb holding collar 'provided with an eccentric portion' 'iaviiig threaded en agement 'with the interiorosaid socket i5 tu ie, a forwardly .spring-.pressed-axiallylocatedv contact 4- plunger within said socket tube, a coiled,coiitactfspi'ing within said aging said contact; plunger, 'one engaging.

said .coiled contact. spriiig. andthe other grounded through said holding collar.

reflector, of alsochet tube rigidly secured to *the back thereof, and a' lainp holding collar 'provded with an eccentric portion having' screw-threaded engagcinei'itwvith the said fixed socket tube, said socket tube and holding collar constituting an Aadiustable bulb supporting Socket and having three electrical .35 contacts, and a multfilaincnt electric light bulb having a shank dctachably engageable with said holding collar and provided with three electrical contacts for engagement with the three electrical contacts of said socket. t0 5. The coiiibiiiation with a socket sleeve having un insulating block lin one end, and having internal threads in itsotlier end, ct' a lainp holding collar having an ext-eriially threaded eccentric engaging the internal. threads of said sleeve, anV axihl springprcssed `contact plunger projecting troni said insulating;` block, an insulating ring in serted 4into said threaded eccentric, and a contact lspiii-ng tleated .at its rear end againsttt said insulatingblock,aiid at, its forward endiirojcittiiig E'hiiloillgli salid insulating riiipr tor engagement?. with one ofthe lanip shank contacts, thc` io'uter. end of said contact sprl-iig and the4 interior of `saiid insulated im ring'bci'iig outii'ardly tapered so that .the

said spring cannot bc projected out of said collar,I v 1 (i. ln a headlightgi the coinbiiiation with a reflector. of a 'socket tube' located at the .60 bach; thereof, allanip holdingr collar roti tively inouiited` in saidsocket tube and adapted yto'liold an electric light bulb, a for,-

.wnrd springpi'cssed contact pl linger' within` said socket tube for engageincntfivith -an 4axial contact of the light bulb, a coiled contact spring within said socket tube, for en- "vu' nient withunothcrconta'ct of the light, ju b, u nd an insulated centering ring car ried by said' collai and engaging the front portiojnof said .coiled contact spring.

' l'7. Iii ah'eadlight, the conibinatioi'i'with a reflector of a socket tube located at the back theof, a liiinp holding `collar rotatively ,mc inted insaid socket tube andadapted to -iold an electric light bulb, a forward springt-pressed contact plunger Within said socltct'tube forerigageine'nt" with an axial Contact' tlie light bulb, a coiled contact spring within said socket tube,.i"or engage- 'fmentwitli anothercoiitact of the light bulb,

an insulated centering ring carriedwby said.

collar und engaging the front portion of j said coiled contact spring, vthe ,axis of said holding collar beingeccentriclto the axis .of

' said socket tube', and an electric light bulb 'rotlativcly adjustable within `saidfholding col ai'.

'8. The combination with a bulb socket forni of ra coiled spring, of an electric li ht bulb provided on the end of its shank with 4. In a'licadlight, the combination with a a projecting tapered boss and atzthe base of said boss with a contact, the said boss being engagcable with the cild ot said' contact spring 'to position thc same inproper. engagement with said Contact.

t). The combination with a bulb socket having ,within the saine a contact in theof s aid boss with a contact, the said bossiA being engagcablc with thccnd of said contact spring to position the saine in proper engagement with saidy contact, the said socket further having'an internal insulation liolding said contact spring out of engagevnient with the walls thereof.

10. The combination with a bulb socket 'havingr within the saine a contact-'in the `torni of a coiled spring, ofan electric light "bulb provided on the end of its shank with a projecting tapered bossand at the base of.

said boss ivitli a contact` the said boss bein Y efigavgealile with the ond of said contae, spring to,V positionV the saine in pro )er 'gen'- gageinent zwitlrsaid contact, the said liiilb havingiivo other contacts, one at the extended portion of said tapered boss and thel other 'at the exterior of its shank,"the `said bulb further having two filaments and three wires connecting said tivofilaments tothe.

Said three. contactsiof said bulb.

I1` The combination with a' bulb socket i.

having within the saine a contact in the form of a coiled spring, of an electriclight bulb rovided on the end of its shank' with a, pro1ecting` tapered boss and at the baseof said boss with a contact, the said boss being 'engageable with the end of said contact iso` Lavamat apr' to position the `-same in pro r en- Eagenfent wth'aaid contact, the eagle bulb aving two other contacts, one at the entended portion of said ta red boss and the other at the exterior o its shank, -the said bulb further having two filaments .and

a lam lholding collar having an externally threa ed eccentric engaging the internal threads of said sleeve, an axial spring pressed contact plunger projecting from said insulating block, an insulating ring inserted into said threaded eccentric and a Contact spring. seated at its rear end againstsaid insulating block, and at its forward end projecting through said insulating ring for engagement with one of the lamp shank contacts.

In testiinonyvwhereof I aix my signature in presence of two witnesses.

- OVERTON WINH'V Witnesses:

Barmen G. William, HARRY D. Kwoonn.