US1642528A - Electric switch - Google Patents

Description

' 1,642,528 E.' G. K. ANDERSON ELECTRIC SWITCH Sept. 13, 1927.

Filed June 25, 1921 5 Sheets-Sl'xee'.'l 1

1,642,528 Y -Sept' 13 1927' EY. G. K. ANDERSON ELECTRIC SWITCH Y Filed Jun@ 25. 1921 s sheets-sheet 2 Patented Sept. 13, 1927.

PATENT forties i K. ANDERSON, O'i' CHICAGO, ILLINOIS, ASSIGNOR, BY IVI'ESNE ASSIGNMNTS, l `'.LO AiPPLETON ELECTRIC CO., OFfCHICAGO, ILLINOIS, A' CORPGRAVTION OIF-ILLINOIS.

ELECTRIC SWITCH.

Appiication nieuwe 25,

.s-called universal spot lamps-.and in this installation saidfmechanism may be enclosed by :and -supported :in the 'rearwardly extending stem 4of-theflamp structure by l.which the lamp structure-can, .be suitably adjusted about the `axes of the universal tmounting -for the lamp. l f Y :Among kthe lobjects of the .invention :is ,to

` w produce asimple, economical,andcompact 'switch mechanism ,of-the'character that is capable of being .esofenclosedand supported `fand :so (arranged ywith respect to vthel mount- .ing that the' switch can .be manually con- "'0 'itrolled :or can be .automatically controlled by means which-are .operative upon ,relative motion of the members of the universal movement n Y l 1 .A .further object'v of `the invention"l is to "1'0- provide a fswitchineehanism of this charvacter,-the circuit closing-elements of which are vso-constriicted as te be :arranged and f 'supported` in han f elongated 1 compact.. closure ofi-such character asto protect .the elements of falso from `derangement y-duef to external shocks :and bruises.

" Another object of .thejin-ventionisto pro 'vide a novel means 'for `actuating lthe switch `v`elements, so constructed` that the. actuator -\'can:have'simplemovements, and also jso arranged with respect totheeenclosure'that'the actuator can be extendedthrough the closure `rwall. whilemaint'aining a weather-proof oint q.between the actuatorandclosurenA y Another object lof-the invention is to 4prolvide a switch `mechanism and a `tubular 'mounting therefor of the character described, wherein .the f operative switch elelsocket at one fend of ;-said support :and can '.'be iremoved `with :the soclret endwise yfrom one open end .of the elongated closure and Y 'tional view of a switch embodying my in-k the switch mechanism fromthe weatherand f j y of Figure ll, with parts inelevation.

ments ,arev partially supported -by-the lamp A 1921. Yserial No. 480,347.

Other objects of the invention are-Ito improveand simplify switch mechanisms for ings andl described in the specification, and 60 isl pointed out in the appended claims.

In the drawings: Figure l is aipartial rplan'and'* partial sec- Y vention. Y

- Figure is asection taken on the 4line ofFigure 1, with `.parts shown .in elevation. l l

Figure 3 isapartial rear elevatioin'with partsbroken away, and .with parts in .section.

- Figure 4 is an enlarged detailsection on ,theline lftof Figure 2.

.Figure 5 is afragmentary enlarged sectional detail of the blades and the actuator and associated parts.

K Figure is a detail .plan -view of some-of theparts shownV in F igure` 5. i

Figures ,7, 8,- and Qare details of insulating andl supportingelements 4for the switch mechanism j VIFigure l0 is alongitudinal section of one ofthe switch blades, hereinafter to .be described.

. 'Figure 1 1 is a partial horizontalsection andV` partial yplan view of vanother type-of vlamp vmounting showing my improved universal spot lamp whichincludes `as Vone V'of itseatures aq reel on which the lamp cordv is wound Awhen the lamp is supportedfat its 95 normal -stationonfthe car or .other place Lwhere it is to be used,'fand from which reel theY cord is adapted to .'beunwound .when the y lamp is removed or extended from itsfnor mal support. vIn;Figures l1 and 12 :said 100 switch mechanism isshown as applied to a .simpler form'of universal spot lamp mounting. @First referring tothe construction vshown in Figures l to 10,'finclusive, l0 designatesa 105 single shell lamp casing having an interior ieliector`, ll an electricvlamp located in .the focal axis of the reector, and l2 a hollow stein which is lixcdly attached at its forward end to the casina' and extends rearwardl7 therefrom to constitute nieans ilor directingl the lanip in its universal movements. Said stcln hollow to receive the lanip circuit switch niechanisni. il?) designates the easing 'tor containing` thc cord rewinding reel such, 'tor instance, as shown in iny prior United States Patent Number 1,309,678, issued on the l5 day oit July, i919. Said casingV inajiy hare means ot attfufhnicnt to a suitable support, such as the post of a windshield lranie, when used on a motor vehicle. The universal lanip .mountingA embraced in the structure shown in Figures l, il, and tl, comprises an elbow 'fitting lo having; a horizontal arni 1G and a rerti ual arna 17. l't is hollow to constitute a conduit 'tor 'the passage of the lainp cord 118 :troni the casing 13. The terininal ol. said vertical arin 1"? has a tapered rota tional bearing' connection with the lined bracket ring; itl that supports the reel structure casing); and through the medium of which the ruioun'tintcr is attached to a lifted support, and said tapered bearing elements `are forced together by a nut Q0. as shown in llipure 3. The rotational ioint between the arin 17 of' the elbow 'tilting 15 and the supporting; ineniber tor the reel easing permits the laiup to be adjusted in a horizontal plane by the application of moderate n'1anual power.

Between the horizontal arm 1G oit said elbow fitting" and the stein 1Q ot the lainp casing; is a rotational lioint which permits vertical, adjustnuntr` or' the lamp casing. It embraces a sind Q8 integral with and at a ripht angle to the stein 1Q, and the stud is rccntorced by a metal insert sleeve 29 which is ilforincd beyond the stud with a tapered extension lll. The arin 1G ot said elbow fit ting' is slittcd, as indicated in dotted lines at :ll in Figi-uro l. lt lits over the external taper ol" said extension and is externally threaded at its tapered portion lo receire a "uutll that 'is formed at its screw thread with a taper that is opposed to thc taper ot the extension. Said nut locks the parts oi thc joints together while permitting,r rotational inoveuicnt o'l" said parts to allow rertical adjustment of the lainp structure.

The base 35 oit the larnp il tits within a socket 22.6 which is slidinn'ly mounted in the cud ot the stcn'i adjacent to the casing l0. Said .solltet and lamp carried thereby mayY he axiallyv shifted for focal adjustment and locltcd in adjusted positions.

,lt13i`e1'rinf;r now to the switch mechanism cuibraciiugj the present invention, All, ist designate coiuluctor terminal bars which are llxedlr attachei'l to and extend rearwardly :troni and are sum'iorted on the rear end ot the sorbet 3G. .n herein shown, said bars are provided with right angled feet elli which lie llat against an insulating disc ll-.G on the rear end of the socket and are pierced lor the extension therethrough of the terminal ends 48 of the lamp socket cohtacts il), illustrated in 'full lines in liinurc l2. the ter1uinals being' suitabli,7 swagred over the :feet LJl-i.

50 designates a` tlat insulating' sul'iportingr body which is disposed ionsritiuliiuilly olf the enclosingr casing lil for the switch mechanism. It extends at its 'trout end betwecni the terminal bars lland is attached to said bars between the endsI oi the latter b r means of the rivets ol. 52, 52 dosignz'ite resilient. switch blades which are disposed in a` rein orally longitudinal relation to said insulating support 50. Said blades are attached at their rear ends to said insulating support by ineans of hollow rivets or eyelets 523, 555 (Figure @ne end of each ejyelct is upset over one oi the switch blades to 'forni a head 54- that has grood electric contact with the associated blade. The other end oil each eyelet is ang'ed to 4forni a head 5G 'to enh eje the opposite side o'i the insulating;l sup-- port remote from said blade. lilith this construction it will be noted` troni an inspection of Figru'e 11.-, that each hollow rivet or eyelet 5255 lines one ol' the blades to the insulatingr support`- and that said support constitutes an insulating barrier between said switch blades. lt will also he observed that the said insulatingr support constitutes means to partially sustain the blade assemblw7 from the rear end o l the lamp soclrct ltl.

58, 58 designate shorter insulating;l strips, one oit' which orerlies and the other of which underlies the insulating support 50, and are, therefore, interposed between the blades and said support. Said strips 5S are respectively attached to said support 5t) by the flanged or headed ends 5d: o'l the eyelets The said insulatinnr strips terminate at their for fard, 'tree cnds at shouldered por tions 59 olE the switch blades in roar ol the Contact ends (it) ot said blades that are adapted. when tho blades spring' towarda cach other, to engage on the tern'iiual hars ll of the socket contacts and to ther-eb)7 close the lamp circuit. The branches (ll ot the conductor cord 18 are stripiied at` their ends to extend into the e'relcts ."il iu anw1 suitable manner and are fixed to said crelets by current conductingl solder joints (i2, whereby each ot said branch coi'iductors is connected to one of' the switch blades.

A preferred 'torni ot switch blade is shown in Figures l and lll` wherein the blade, niadc oit resilient current conducting inatew rial, is torined between its ends with a lon- `sritudinal strongfthcniiuil rib (33 to reil'itorce or stillen it, and is formed near its contact end (l0 with an indciitation or lug' Gfl to en gage in a` notch or aperture (35 at one side oi and near the adjacent end oli the associated insulating' sti-rip (Figfjures T. and 9). Figures 7, 8, and 9i (':onsidcred in conlll) f mgm-,ws

@separate :the blades'. .its itherein s-shown, the .outer .or :free fend fol Dthe support l:'50

is provided kwith two .apertures 67 for Vthe 'passage ot the eyelets 53,'.1an'd the I'insulat- :ing strips '58 are provided 'inea-r their outer sends with ...apertures :68,50 that when the said :strips =58 .are :laid one v:0V-er .and Aone Runder the. insulating support li50, lthe apertures 68 will .match 'with =`the `apertures vr67 iforftlie passage .ofthefriuets orzeyelets 15.3. .In the complete switch assembly "the said eyelets nalso extend through apertures'.52' Vat Y the."liXed-'orheel ends #of :said :switch blades. The saidv `zinsulating support :is formed at its'front aend with apertures 69 'for the'fpassage ofithefrivets 5l bywhichi the 4said support isfastened to the socket :con- 'tact-terminal bars 44. yflhefmanner shown not attaching the switch blades tothe insu- ;zlating support causes said blades y*to assume .arelative I crossw'i-se relation, `as shown in `Figure :1. :It is not 1 essential (though desirfablefthat said blades'a-ssume this crosswise .-rel'at'ionj it f only beiug: desirable that they IeX- tend atfea'ch eside ,of the insulating support,

or its equiv-aient, towards and -for-*contact V:with .the terminal kbars L44, fso that .said blades may properlyl ,closer on said Y terminal bars toclose the switch, and.maybe .spread -apartfor separated '.'by the fmeans hereinaftter describedY to openthei-s-witch atiftheir contact3ends-6O. y

The attachment .ofY the switchfbl-ades 52rto A.the rearend ofthe -insulating support 50 .-.is such that the, ends .of .said lblades .-.are :nor-

Ymally .pressed against'ithe vsoclret 4contact terminals 244 .to v,close thelampcircuit.; vThe .open .the circuity .by ."a ,switch-.2 actuator #ele- .ment liayingwa .fpart ,that l-ies between A.the

i. from feach circuit.

i fswitchblafdes, Yandfadapte'd, upon suitable actuation thereof, to spread said Ablades othergand'to A.thereby open the The `l actuator ,element shown .in `the pres- Aentinstance consists of iapiu.Allwhichzex- .tends Vat fits `inner end transversely .across .the space between thebladesQ. .To .this endthe adjacent.sideoflzthe support 50 .is

`out .away between .the A ends. to i form. a recess 50 to receive thelinnerend .of the actuatory lpin. The outer .end ofr` said lpin .has rroclring andaXial bearingniovementin.ears or .lugs .73,.shown as .integral ',pa'rts lof the stem ,l2 yand stud 28. fBetween. said earsor lugs an ,arm .7.4 extends from vsaid vpin '.71 .to constitute anactuating arm, .through Y which to .impart `rocking movement .to `the pin. .Therecess or spacelbetween vsaidflugs or -ears ,is ofi a wldthto `permit-clearance .y space forffthe arm'E74offtheactuator eleot said insulating support.

ment when fthe. said element is zanially shiftfzed to .controlthe movements 'of .the switch blades.

The inner SenblottheJactuator .'pin 71 .is formed with a terminal Z7 which iis 'of .obilon'g .cross section. That isztofsay, said :ter-

-min'al .is made of substantially ,greater width zt'han .'depth,. as.;is clear by an .inspectieni-oi Figures zand 16. When the smaller dimeusionfthereof is presented Vtowards the l blades, afs showluin Figure f5, 'the .terminals yofthe bladesV are free, by :reason 'of there- 1-siliencyy thereof, land their Xed Amounting at their outer endsfto move into Contact with' thefsoket contact terminals 44. When said .pin iis i rocked 90 the wider 'portion of :the fend of th'epinis presented towards the blades, .as fshown iin Figures ,2;and .12 -to open 'the circuit between said 'blades and terminals by spreading the'blades apart.

' In order to Aavoid destructive wear leetweenthe :rectangular :portion of the Aactuator pin and the/insulating strips'58 a"U- shaped wear member fzis itted-over-the :intermediate portion of '.theinsulating sup port 50 at the 'recess '50 thereof so as to lie betweeuithe end ofthe pin andltheinsuplating stripsS .(Figures 1,-5 fandf). Said wear rplate is made of axlength, longitudinally ofthe support LOto'tlllfsaidfrecess 50 The support "50 is-notched .at 502 and the insulating strips 58 'are likewise,notched'aat 58" tojreceive'the lclosed portion of y-theU-shaped wear plate or member 73 `Aso that the parts will be :flush with each other. Preferably"thefclosed -'end of the wear Yplate isrecessedfat 732 to increasethe flexibility thereof. l

sTh-effend margins. of' the .-aruis of vthelsaid f` lglJfshaped 'wea-r `plate fare flared outwardly ,said blade-s Vvare .adapted Ito be forced or spread fawayplrom. saidwterminal .bars vto ain opposed vrelation :to `form tapered Alaces or :lips 178K :tof-engage tape-redftaces `79, .79 formed between :the :cylindrical zportion :of the actuator Ipin` :and fthe `rectangular end Vthereof'. .Contact of thetaperedfand :flar- 1ingportions of rtheactuator'piu and wear plat-e, respectiyely, has the effectfw'hen .the ipinfis;pushedzinwardly, to :spread thel switch blades apart :and open the switch. 'The switch will remain :openso-long as operatlllf) l.ing pressure is maintained on the pin.

Then the :pressure is relieved, however,the

`resiliency of the 'blades and wear .plate 73 y on .the A24th .1 day .of `July, I1923. The switch,

*when opened by .rocking movement of the piu 7l, is v.operated.by hand, and, owing to T'the flattened. faces oftheend i7? .ofesaid pin, Vthe L,pinremains in .a4 given .adjustmentuntil terminals, and adapted as a unit to be withdrawn from the case through said open anda rocking and axially'- movable actuator element extending through thel wall of 'said 'case `and, transversely between the switch blades and constructed at its inner end to spread the blades apart upon both axial .and rocking 'movement rto ,open the circuit Abetween the bladesl ,and-said ,terminals 7 .A (switch mechanism and its hollowv elongated case, the latter open at oneend to receive a lamp socket provided with rearwardly directed terminals, an elongated, insulating support fixed between said terminals andextending rearwardly through the case, said insulating support being sustained at one end by said terminals and supported on, but 'free from attachment at its other end to the case wall, switch blades attached at their rear ends to said support andthereby insulated from each other, said blades being normally springable toward said terminals, and an actuator extending through the wall of the case, having an inner spreader endto act on both rocking and axial movement of the actuator to spread the blades apart and out of contact with said socket terminals.

8. A switch mechanism and its hollow elongated enclosure, the latter open at one end to receive a socket provided with rearwardlydirected terminals, an insulating support fixed to and between, and partially sustained by, said terminals and extending rearwardly therefrom, iand switch blades i" mounted on said insulating support and thereby insulated from each other and adapted to close on said terminals, said insulating support being otherwise unattached and the switch blades being movable with ,said support to be moved endwise from the case with said socket.

9. A switch mechanism and its hollow velongated case, the latter open at one end to said terminals and extending rearwardly v therefrom, switch blades fixed at their rear ends to said support and thereby insulated from each other and springable towards each other and said terminals to close the switch, and an actuator extending through the wall of the case and having rocking and axial movement therein and provided at its end between said blades with an oblong cross sectional terminal and exterior to said ter minal with tapered or wedge faces to engage corresponding faces of parts that act with a spreading effect on said blades to open said switch. i

10. A switch mechanism and its hollow elongated case, the latter open.`y at one end to receive a socket provided with rearwardly spaced terminals, an insulating support fixed to and between, and partiallyV supported on, .said vsocket and extend-ing rearwardly'therefrom, switch blades, insulating stripsflying between said insulating support andsaid blades, with means to fix the rear ends of said Yblades to said strips and insulating support, said blades being normallgy springable at their other ends :to-v

ward said terminals,L .said insulating body and strips .being notched between their ends, al1- shaped wear plate fitted to the notched portions of said Vinsulating support and strips, and an actuator member extending through the wall of the case and` having an oblong cross-section terminal iitted between the arms of said U-shaped wear plate.

11. A switch mechanism and its hollow elongated case, the latter open at one end to receive a socket provided with rearwardly spaced terminals, an insulating support fixed to said socket between said terminals and extending rearwardly therefrom, switch blades, insulating strips lying between said insulating support and said blades, with means to fix the rear ends of said blades to said strips and insulating support, said blades being normally springable at their other ends toward said terminals, said insulating bodyand strips being notched between their ends, a U-shaped wear plate tit-ted to the notched port-ions of said insulatingV support and strips, and an axially movable and rocking actuator member extending through the wall of' the case and having an oblong cross section terminal fitted between the arms of said U-shaped wear plate, said wear plate extendingbeyond said insulating support and provided at its open side with flaring margins, and the actuator member being provided with corresponding tapered portions to fit the `flaring margins of said wear strip.

l2. In a switch mechanism, the combination with a. fixed, elongated insulating support, with terminals fixed thereto and insulated from each other thereby, of switch blades extending longitudinally of said support and insulated from each other thereby, insulating strips lying between said insulating support and said blades, means to fix the rear ends ofsaid blades to said strips l and insulating support, with the said blades normally springable against said terminals, said insulating body and strips being recessed between their ends at their overlying portions, a U-shaped wear member fitted llO a tamp Socket jprmeidoffl with rearwardy frreetet'l terminals, ot an elongated insnlat ingr' support xed to said Sockety and extendH ing rearwaw'ty Within said Stem, switch hhldes Carried hy said snpgort and insulated thereby from each other. Said Madere -heng sprngahh towards each other and said termnas tor Contact with the latter`r and an actuator extenchng through and 1U hming axia and rocking movement in said

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