US1766220A - Adjustable terminal mounting - Google Patents

Description

June 24, 1930. c, LQTZ 1,766,220

ADJUSTABLE TERMINAL MOUNTING Filed Dec. 51, 19 23 3 Sheets-Sheet l flue/770W w'edzzzagi June 24, 1930.. A F LOTZ 1,766,220

' ADJUSTABLE TERMINAL MOUNTING I Filed Dec. 31, 1923 I5 Sheets-Sheet 2 Ky/ F210;, I

June 24, 1 930. c LOTZ 1,766,220

ADJUSTABLE TERMINAL MOUNTING 3 Sheets-Sheet 5 Filed Dec. 31, 1923 wmms MM- Patented June 24, 1 930.

c Animus; gmwz cincneo, 1 mnors, nssie \ron genes-newsmani itates 7 ""*EQUIPMENT-191);0F? C A L N J ,A'FQRP'ORATIQN OF} Em i-"s I js jnnans'rniarn TER INAL 'MoUn TINGj'i;,, f p, Applicatiozifileii 'liecinlier 31, 1923; zseria'l'noz 68357 2. i

This invention'relatesjto improvements in 1 electrical switches,'and"more particularly to an mprovedcontact terminal or clip mountingzfor switches of-the 'disconnecting type,

, although the invention is not limited to a particular type or class ofswitches nor is it limited to mounting of a particultu v contactmaking partof theswitcli.: f In switches for opening andclosing electrical" circuits, particularly those foropening and closing electrical'circuits carrying large quantities of current', the matter of accuj rately' aligning thegseparable contacts .and

maintaining accurate alignment between the V 31 contacts I has presented: a difficult practical problemfilVhere considerable Voltages are carried, the' (length of. the switch arm must be made relatively tan'ce Hence, accurate and "stable adj ust- "Disalignment 'betweenithe' contacts may either preventclo sing of'the contacts entirely I p p is theprovision. of anradjustable mounting V or itma y cause improper oi-incomplete. clos- =tact and employment of only part ofthe con ducting material in jco'nducting the current. :Where only part of the material is employed in carrying or conducting currents,;wh=ich the switch is designed to carry; the circuit is subj ectto heatingv and failure, or excessive material must be employed; j Accurate. alignment between the contacts, even ,where the construction andifinishing'oftheparts is substantially perfect, has been exceedingly 'diflicultk It 1 is" practically impossible, "for example, to avoidvariationlin the centering of l ca 7 the insulatorsupporting studs,"whereinsulators so mounted are employed, and-in mount- 'Ing'and connect ng the various parts. It is constrnoting and finish'ihgthe various parts. The slightest variationzm'ay disalign thecon tact s sufliciently to cause ".very obj ectionable results Even if, -'after great labor. and'precisioni in cons'tructing and assembling the I been practically impossible to maintain 7 that {a lignment, after the, switch has been muse .for'a ti1ne.-; 1

'vide meansifor adjusting the se ara e COIL ra'tus or otherwise, and for removing, when-,

great for. striking di sinen't of the contacts becomes of importance.

ing. This usually results "in-imperfectcom' Another aspect ofthe invention ,is tlie also dilfliclllt' t0 avoid entirelyyariation's 'in I f switchjandwwithout n switch, accurate, alignment is 'securedyit, has

tactslot a switch, oresimilandevic'e, --.;to accu rately, llnev them. up with each, other so that proper closing and-uniform contact overl the entire contacting areaswill be secured. The i adjustment provides for removing an i dis;

alignment caused byinaccuracies incOnStruc- 1 l tion, mounting Land assembling Iofj the appaever desired,;any, disalignment,noccurring after use. Specifically Ijprovide an adjust able mounting fora relatively stationary I contact ofithe switch, butfitgis not limitedto application to the-relatively stationarycontact f It may be a'pjp'lied to either or both of R the stationary and relatively movabl "coni tacts of the switch and wherebothof thejcontacts are movableto either or both ot said c 1 contacts or it may bejemployed; for making relatively stationary contacts adj ustable-with 7, 3, respectto'each otl1er. f; l

I Another importantaspect of the-invention which will beuniversal in its application to switches and 1insulatorf fittingsqof; different types and sizes. This universalv character simplicity, ruggedness and inexpensive fcon? I broader, aspects of the invention, a

vision of means for adjusting the contacts} by i a motion of. translation, preferably in more an P ne and f dii t i r y figule Y motion, point center.

St ll anotherimportant, a p :2 vision for, securing theiv ioregqing wltlwl fi movingor, adjusting a: great ni -imber oi parts ing parts] of "great Weight or, Jmass. makes very accurate ad ustment IJQ$SlblQ-q The adj ustment fprovidcd'fandi-ts unive-rsal standpoint; Great labor"andprecision, are

not necessary, yet thelmost accuratealignistic ofV-the meansprovided togcther' ithing Pr a l n? d e e l .1991 9 r i f According to m y I avhicli are usuallythe most difficult to remove linkage 15"wiu1 the fittings at the outer end V of insulator 10 and rocking of shaft 7 in a may be readily taken In the co-pend Steinmayer, Seria ary 19, 1924;; is shown a hanism and syvitch: in connectent invention 'is'pa'r mec vvhich'the pres adapted tor -em r crstoo'cl th tthis i 'comb-ination'with th l a; eh i n r eeoe V innwhlchz fzFigfl is 3, 81

, embodying the present invention; j

e dfm te y' 3 7 FigA is Fig; .51 is,

Fig. 6 is asect Fig .'7's

iflOiedn i Fig. 8 {is'a'si H In thetdrawi me, lustratioh;

- described in the co-pen Gjfsteinmayer, Serial N V r,

ndvforms no partof supportlng' studs ll'LjPlttCB and m mountlnig a and COIIIIQGtlIlg the mucus parts :Itisalso utt gBriefly theiswitchshown practically impossible toprevent variation in I Y or" slabfi; A rock Shaft 1 is the'const-ructlon andfimsh-mgof, the-various 1 h Alwin 7 V filed January '19, 192.4, a

r V i theiprese nti V after pointed o l is? comprises a b'as 45 j'ourna v ,6 and mounted up cksha'ft 7' iszan in insulator. l Ofdisposed basefi. The switch may, o-t course', nted horizonta'lly'as shovvn for it; may l-ly orin any other desired uponbase" 6 on the other: insulator base 11 carrydisposed obliquely with One "line conductor '13 is rough suitable fittings on, th t insulatorto atfiexibleiconically connected at its oppoitablefittings; on the outer tilting operating insula-' ryin i k H "normal f 0be rnou be mountedvertica 1 '1; f position. f Mounted side I tshattY-is an ingfan insulatoril 55 respect to ba connecte ,outeriend o ductor "14 electr 1 site en'd throughsu 5 end ofa rocking J tor l5'withia mova V ;mechanism' 16" on the outer en in?"insulator. 5 a flThefitingsa r 5*sulatorjf15; are connec anism'nor to embodiment in 'itch,.but that it may be em otherjsuitable blade} or con and in various ot .other'apparatus. V

wDetails not already structi ona'l features W ,Iporta'nt 1 Will appear tailed descripti "Fig.13 i

stationary contact and adjustable thereforon line 3 -3 of'iFig. 2;

a" section online 'lan viewer the ada the particular swi i'lhe; switch itself is mor nvention ezi'cept as will be herein;

11 g 8 mounted-upon base onlba'se 6 on"o;ne sideot sulat-or baSe fittingQcarsubstantially led in a bean lication of Alwin G. counter clockwise direction, as by meansoi' l'No. 687,357, filed Januan operating link or han'dle'17, rocks insulan improved blade tor 15 and this serves to separate the movable on 'With contact or svvitchblade mechanism 16 from ticularly 1 the relatively stationary terminal clip-[or conbodimentybut it is to beunctactlsa Rocking of insulator l5'in the renve'ntion is'not limited to verse direction moves contact or magmatat'particular blade mechanism-16 into electrical'contactawithrcliplS that particular and thereby closes the circuit; "ET-he particular l d withnny blademechanism l6 ismore fully disclosed in V, tact mechanism I the hereinbetore referred to copending ape typ 1 wit h a d plication otAlwin-G.;Steinn1ayer. vIt comprisesa pair of blademembers 16' mounted referredlteand the conon the outer end otinsulator zl5-and spaced hich are novel andjimf to receive contact terminal or tongue 1-8v beromthe following detween and make electrical contact With'the, d the claims taken-With opposite sides of said t'ongue'when the switch t the accompanyingdravvings i3 8 61- As.- has already been pointed out, =ina,c.-

de elevationa'l vieW ot a svvitch e alignment between Contact blade i a mechanismslG and. terminal clip Side 1 switch shown or bet-Ween t e of: Va?

"s rabl t t ha i jIlOUS other types of switches and similarapr- 59c paratusemay: eitherr-=prevent closing, of the s ai-g 'tib th u h th' el fivfly contacts entirely or may cause improper-close v Support flng, Which results lnimp'ertectqcontact and '7 Y often in employingonly-part ot-the-material' 4 f Fi 3; of the contacts in carrying current. Where 95 k s sectionfin 11 7545 f F only part of the materialisemployedinconio nili Fi 3'; --duct1ng currents Which the.'Sw1tCl'l 1S' ,@e-

' t dfit i signed to carry,the cn'cuit 1ssub]ect'to;heat;

mg and failure and excessive. material must 'parts a and; even if after; great labor and preinitial'a-lignment'is secured,lit has been prac- -v Inorde'rto secure-accurate initial align- -WltllOl1t greater precision inanswering, finaccurately realignv it, With 1' blades '16? Where they become disaligned after use, I. mount even'wherethe construction/and finishing of full the parts is substantiallyl perfeet, i m ti din application fC2Llly 1lI1pOSS 1bl. I t*1s, mm u i m 0. 6 7 7 toavoidvariatlon 1n cementingthe insulator V i v: clslon in fconstructlon and assembly accurate .ticall'y impossible tomaintainthatalignment after the switch hadbeen in usefor: a} time. l

3115 mentwithouteany greatamount of labor and clip18 upon a clip supportingmemberQO. ,1 l V The clip or tongue 18 may be provided with 7 an integral out-turned base 2l'r yvhich' base constitutes a supportingmemb'er forthecon-I 1 1 t swi h bl d ta'cte'cli'p portion18 'integral therevvithisaidg d f'thfro k, base beingsecurediupo-n memberQO bysa'bolt;

122 or it 'may'ibemounted uponmemberQO":'

uterend in *any'other Suitable or' preterredmranncf.

ted through suitable 'A number'ot apertures 22 permitj'di'fierent na i w bf' m usually be employed. As also alreadyjr'pointed iot ngs. 5 designates, in its e out accurate alignmentbetweenthe contacts,

tch selected for ilpositions of the :clipand adapt I member 22 forsupporting'cli'ps of different types and sizes. The details of the-" mountingjof clip 18 upon member 20'may of course be'varied "as desired, as may the details of contact mech- :anism 16 and the other details of the switch.

"sup ertingmember 204's preferably molded or castwitha supportingor' clipmounting upper wall '23- and with=-fintegral side walls 124 depending'5'froii'i the edge ofwall I 23 and provided attheiriower dg s with integral equally 'spagc'edmuiauy "extending lugs-P25.

Each lug 25"hasan" ap ijture26 and formed integral with and depending from'the under surface of eaoh lugis afoot 28.j The lower ends of feetl28 are finishedto-conform to a "spherical seating" surface =30formed integral "with and raised fromi a triangular flange 31 at the u er end 'of -a isupporting'pedestal 32.

"Eaclr coiiner of flange1i31 is aperturedat 33. Bolts exitending through apertures 26 and 33- and engaging insuitabl nuts; clamp sup- "porting-mmberfl20{with it's'feet in engage- "l'nentiwithse'ating surface 3Q and lock the supporting nieinber s cure-1y place upon the spherical seatingsurface 30ofpedestal 32. i Itiis 'to'be noted thatsupporting member 20 "is adapted" -for universal adjustment about seating urat-@6 30 andfeet 28 With their coma ment, while adjustment brine 'positionr fil'ementa'ryi endsccoperating with the seating surfacefsupport member 20 with its mountfing base 23and the termina'lor contact clip 18 carried thereby, firmly in any adjusted 'or more {of-the bolts 35; and tightening up the other one or more nutsysupporting member- .mentrof supporting member '20- laterally to eitherside withrespe ct to blade mechanism 16 permits removing any inaccuracy in lateral I mber18 in adireetion; along the-length of the blade I mechanism ustsfthe po sition of contact 18 I "thatj direction 'Obliqueladjustment of 'ine nberi2Q1adjuststhe position o f' 'co ntact 18 preferably rna tiy; ort; sogth t. as" great later ly l d l 19. line d rec n I along the len th t e/harmonies ffTheQradiusof curvature of surface 30 is asapossible arange oftilti'ngof contact 18 .with reference to its supporting insulator,in

iadj ustment of the contact overi surface 30 is :secured.--; -Relatively "slight ad justment or supporting member:20; however; usually permits: the range i of adjustment requiredfor an practical purposes andtiilting of the conta'ct-is not appreciable; in 'isuch' cases. The

or base flange-40 having four application to Byloo'sening thenut-on either one fin spaced range ofadjustment may, of course; beas great as desired. v a Molded or east integrally with the opposite 'end'of oblique pedestal: 32 a mounting equally spaced bolt apertu'res38and two diametrically oppo site s'lotsor elongated bolt apertures 39.- "In Figures 1 and 3 pedestal 32 is shown mounted. upon the upper flange 42 of an'adapter' fitf ting 43, base fiange4O being rigidly secured or"clamped to flange 42 by bolts 44 shown extending through 'slo-ts 39 andelongated.

apertures or slots 45 in flange 42.- Elonga? tion of openings 39 and 45'permit variation in' positioning of bolts 44 such as'might result from inaccuracies in finishing and as 'sembling. *Thej elongation of these openings alsopermits'use of-the'adapter withpedesi talsof different sizes'and of the pedestal =with' adapters of difi'erent sizes: Upperflange 42of adapter 43 also has-four oper tures 46 which with s'lots'45 provides clamp- .ing openings for register with other arrangeme'nts of clamping openings in various other I standard and other fittings; This makes the adj usta'ble contact support universal inits fi g f ent I stylesfand lzesww I Adapter sula-tor l2 with flange 48 clamped or otherwise suitably secured "to fitting 49. Base flange 48 has four'equally spaced slots or elongated openings 50, four outer apertures 51 and tour inner apertures registering with "the apertures 46 of 'uppenflange42. These fitting 43 has a 'base fiange 48 and in Figure lthe adapter is shown mounted upon a fitting 49 on the upper end of'inprovide bolt receivingiapertures for re'ceiving practically ai'iy arrangement of bolts so that the adapter "is thereby adapted for by bolts 54' to agcircumferentialsegmental band type fitting 55 on the. upper end of insulator 12.

'- i 'lheswitch shown'has an'a-r'c horn 5 6 car- "riedf by and movable-with insulatorl5 'an-d at-cooperating arc horn 57 carried by the supporting base or pedes'tal '32 and cooperating "with 11 1 11356 to protect the terminal-tongue and-'blade members ofthe-switch against the.

action of arcing well, understood in the art:The lower end of arc horn 57 1s turned out. and 'back jtoliein angle 3 grooves 58 =in lugs '59 formed integralwith and proje cting pairs' from opposite sides of the g V conneeting' weh 60 between'flange's f 31, and

-4() "of pedestalj 32. Clamping straps]; ne

mounting. universally upon 'difi'erent sizes 1 and styles of insulator fittings'.: In Figure '1 lhave shown it moun'ted upon one type offit ting 49, In'Figure 2 I have shown it secured ing supp'lemental" angle grooves' are back portions"respectively? o f' thearc h'orn' f5 7 "andaredrawntogether'by bolts 64., liThe 'outa'nd back turned portions of-the archorn "clamped acr'oss'the turned 'out' and turned 7 lieipartia-lly in grooves 58;.and1partially in 1 grooves 63 and the drawing together of straps are'draivntogether. 7

between the pairs oflugs 59 so'that said-lugs 62 clamps them firmly in place therein the vangle formation of the grooves wedging into snug engagementwith the horn as the strapsv Straps 62 are arranged -.w=ill"not interfere-With drawing the straps f ail-enlarged head groove 68,

V. V o P p r groove r0. 7 V 15 53 together. .7 V i Project-mg fromone sideof pedestal 32 is ant-integral arm-66 having at itsiouter end 67 provided with an angle A strap 69 has a similar angle from its end lies between'head 67v and-strap 69, partiallyin groove 68 and partially in. groove '70 and strap 69 is clamped over the conductor and As'in 1the mounting ofjthe are born the angle secured to head'67 by bolts'l'Q.

formationof grooves 68 and 70 results in wedging into snug engagementwith'the in-' sulatingsheath of the conductor for example 'as-thestrap is clamped thereover. The end :of conductor 71 extends'on and is connected witha terminalsocket'73 secured-to a strip 74 mou'nted'underone or morejofbolts22.

' '1Recapitulating-briefly, theimportant aspeots of the present invention are the provision of meansforadjusting one or more of the separate contactsoi a switch orsimliar devgice to accurately line them up; the provision ofa universal adjustment of this sort; the provision of a mounting tor one of thereontacts through which cured and the provision of a contact mounting, which is universal in its application to "arrangements as well'as diiierent; sizes andstylesof terminal contacts. g invention in connection with therelativ'ely' V stationary terminal ofa particular switch and -boththe; relatively rmovable and relatively stationary contactsfoftheswitch; 1

V The elongation. of openings ,difierent sizes and styles of insulatorfittings and which will receive and support different I have shown the although especially adapted as an adjustable mounting for sucha terminal it isnot limited to such use but maybe embodied in either or 39 anti 453m addition topernntting variation'in posit on- ,and permitting the comhina- 7 i tion of parts ofdifferent sizes, permits ad ust ing of bolts 44 I ment of; thegpede'stal'f andthegcontact carried V ;therebybyamotion oftranslati-on in the di- 'rection'of he'l'engths ofsaid oipeningsgxThis "permits" adjustment. of, thecontact clip by a -motion of V translation: inone;plane-.I 7 Adjustment lot: thecliplb'y motion of translation in issuch'Ethat adadjusting the po- Line conductor 71lat a distance the T adj ustment is I sesaid carrying memb adjustment is secured at the base of the contact clip itself and great accuracy and convenience-of adjustmen-t are secured. v r

,Iolaimz. I

1,. In combination, a pedestal having a spherical seating, surface "and means for mounting same: upon a support, -a contact carrying member having complementary supporting means. adj ustably seated f upon said.

surface, a contact carried I by ,saidgcontact apertured lug'sfon the f pedestal and contact, carrying -members and carrying member,

bolt means extending throughsaid apertured hws for clamping the "contact carryingmempedestal;

bers 1n adjusted sitionupon thesuppor ting 2. In a ,afvice'tr the Case?database; 'combinationoi a supporting pedestal having i a spherical seating surface, amountingfiange ,umversal 1n" difierentslzesmnd a connectlng web between the mounting flange {and spherical seating on said connecting web and a projecting arm having a 1 grooved head a c'ontact supporting its application to i supports of surface,"js aid pedestal having {grooved lugs member adjustably seated uponthespherical 5 seating suri'aeeof thepedestal, a contact on:

said supporting membier saidcontact having 7 a terminal carried by; the contact, support;

ing member, a

conductor] clamped in the t grooved headof the projecting armrofthe V,

pedestal and connected to said terminal, and

the pedestal. V y

3. In combination; a pedestal" having a} spherical seat ng surface {and means for f' mount ng same upon; a support, 3 a contact an arc horn'clamped in the grooved lugs of carrying member having complementary supportingmeans adjustably seated upon said surface acontact carr ed by said contact carrying membenaplurality ofopenings in V er and means for vsecuring saidcontact at one'of said openings." 1

94; In a switch; in eombination, a pair of' contacts, and means for permitting angular adjustment and ad ustment bya notionof translation in; a plurality of planes of one oi -said contacts relative th-e other contact; i

i In ja: sw1tch,: the combination of I a supp V 1-15 1y spaced rad ally extending lugs having".

porting member having :a plurality ofequalapertures therein 'afoot' integral "with and depe i from a polygonal flange memberjranaperture 'in each corner of said flange; "the lower'ends of said ieet bein'g finished and'adapfted wco- I I c said: spherical'seating surface, Q i and bolt means extending through the aper- I tures in said lugs and fflanges .fforflocking the-supporting member in "place "upon the r operate with spherical: seating: surfaceq f 3 6. 'In a sw1tch, 1n combinat on, relatively movable contacts, means for angu- 7 from the under surfacei'ofeach x l of sa d lugs, a spher cal" seating surface raised p,

a par-er. I g

.larly adjusting one .ofsaid contacts relative jtogi gw if too the other contact about a point center, means, for locking said contact in angularly adjusted position, and means for adjusting said contact by motion of translation and at an angle to the relative movement of the contacts after said'contact has been lockedin its angularly adjusted position. a

' 7. In a switch, a pair of contacts, one contact being relativelyfixed, a switch arm 'pivoted to engage said contact, means for'adjusting said contact angularly about a spherical center, and means-for adjusting said contact by motion of translation in two dimensions. 7 8. In a switch, a pair of contacts, one contact being relatively fixed, a switch arm piv- I oted to engage said contact,j1ne an's foradjust- H ing" said latter contact angularly about a spherical center, means "for I adjusting said contact by motion of translation in two di-' mensions, and means for'locking-said contact in adjusted position." v

9. In a switch, two serially positioned sup ports having slotted companion lugs, the slots in the lugs of one support beingangularly displaced with respect to the slots in the lugs of the other support, and a contact rockably mounted'on one of said supports,

10. In a sWitch," two serially positioned supports having slotted companion lugs, the. slots in the lugs of one support being angularly displaced with respect to the slots in the lugs of the other support, a third support rockably mounted onone of said supports, and a contact adjustably mounted on said third support.

In witness whereof, I'hereunto subscribe my name this 30th day of November, 1923.

ALFRED F. GgLOTZ.

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