US1631994A - Electrical connection - Google Patents

Description

4 1927. ,June l l A, A. WARNER ELECTRIYCAL vCONNECTION Filed Feb. l, 1923 3 1` HHM/Henkie- `Patented June 14,1927.

v`ALONZO A. WARNER, oF-NEW. BRITAIN, ooNmrcTIcUT,- AssIGNoR To rANDEns,L

cUT.

i EnncTnIcAL ooNNEoTIoNj pannen nieqiireiimgry 1, lage. serial No;.eis-,lign.f`

My invention relates tofelectrical tions, vand has special reference `to hinged Lconnections for electrically connecting con- ,luotors carried by. anoperating handle with conductors carried by the member to `which said vhandle is hinged, Without-requiringthe.

use Iofflexible conductors. l j

The principali object of the invention nis to .provide an electrical connection of this charlojacter which isso constructed that any ,nor-

Ina-1 `Wearingof thepaitsofl the handle hinge will not in any Way impair the .efficiency `of theiconnection,` v 4 y .anocliefebjee ofihfinvmion@stepw- 1'5 `v-ldoan electrical` connection of this charac- The .following :is a description of my involition, f reference being hadi to the accompany ingdrawings,'in which,-- j f .Figure lisa planlvievv, partlyn section,

of af port-ion of a vacuumgeleaner to which an electrical connection is applied embodyf ing q the lfeatures4 `of the invention in their inlside:elevatiomtaken on the lines `2 2 andl -3T3',respectively," ofFi'g. 1. 4 Y j `In. the .drawings my inventionlis yehovvn embodied in a `wiciriim cleanerjhavingabody 'or ycasing .2, 'and a .hinged j operating: handle or 4rod ,4. [havingl a socket6at1-itsrllvver end. :As ishoWn, ,the handle hinge, comprises The handle is provided with j ay ,central g bore 45. .through which :pass two? VJeleeltgcicalj conducftorsll8j, a nd the body or caSingjQIcarriestwo .electrical conductors 20. having'ftheir inner .ends connected `Witfhjthe terminals vofthe .motor of theymachine, Theelovvenjend of 'each fof the electrical condnctorfs l L Vcured' to the shank22 of a, terminal j contact" eyelet 24,;:andthe outer Lend,V of^ each\ofthe K electrical condiictos4 is secured to the shank 26 Lof'a terminal contact eyelet 28.

fIlie contact eyeletsQl andf28 arerof the` fusnaloons'triiction, they beingmade of sheet metalfwith'lips formedV on their shank which arez tightly bent around therend` of theoondoctor. The eyeletsllare pivotally mountv'ed jonfslee'ves 30 4 of insulating material that co v Aare vmounted on `the pivot'pinlQ adjacent the Vinnersides oftlie'hinge' lugsS, respectively.y The eyeletsy 28 are also"pivotally'" mounted ,on the" sleeves 30 and -`arranged adjacent to Contact with" the outer 'faces'olf the eyelets 24, respective]y.` A collfarorr Washer 4 ..32 ,of insulating material*surrounds each 1 ter`- which is of sii'nple, ,strong and durable sleeve 30 and'is interposed' between the 'eyelets 28Ijon 'the "sleeves"Y andthe vadj ace'nt hinge lngSvQjfTivo collars orblock's '34 (if-insulating material are j. loosely mounted on 4vthe pivot i pm` 12 between the two i sets of lcontact eyelets'fand in contact with the Veyelets 24,

and eachy is c ountersurik'V onitsinner face to provide seats -for the endslot'fa spring 36 fcoilefd aboittliel pivot fpin 12. f The spring `"36hyieldirigly"presses the blocks oiitwardly Y so"as Vtofcooperate Wit-li the .abutment washers y32 to' yieldingly, buftfirmly, press` the eyelets togetherv between them so as 'to 'maintain the Qeyeletsinfproper electrical Contact. Each of? Vthe blocks vis l provided A,with a countersunk recess 38 inits outerY face to enablethe block toj'ridelover the inner end-of the adjacent sleeve 3(1"50r asto` engage the eyelets and maintaiiitheinin closel contact in'spite of anry"n1rmal AWear. i A he yeletsQ/l and 28 a1ec`onnected with theoperatinghandle /l'and the casing Q so as tofca'nse themfto', turn with? these parte, respectively, v:and 'tlins maintain proper elec-"1 ftrical 4connection "betweenI the conductors `18 and 20 without'bending'fthe conductors when the openatinghandleof the cleaner is swung on yits,hinge;- To provide ,for-this each of `the blooks"84"is provided with a longitudi# ecker exis provideawah agprojeeangitongue A2 that enters Athe slots 40 and "tlmsl'iold' the blbcksufrom 'BurningV movement `with relation vemen 'fof thejblocksl 'Theslots' 40 also the casing Qby means of bushingseL lof insulatinginaterial secured iii aperturesv `inA the casing, and through whchthe slianks of the eyelets 28 extend, the shanlrs closely fitting in the inner wall ofthe bushings.

F rom the foregoing it will be apparent that a simple, strong and durable electrical connection is provided which is particularly adapted for use on vacuum cleaners and other electrically operated machines `havinga hingedt opera-ting handleV that carries electrical conductors connected with the machine motor. coiled spring 36 will maintain the contacts Qa'aiid 28 in rubbing contact and hence in proper electrical engagement irrespective of any wearing ot the parts ot they handle hinge or any wearing ofthe contacts theinselves, and that the contacts are well insulated from the metallic parts ot tlie inachine handle and casing. The parts ot the connection may be easily assembled and taken, lapart upon removing the pivot bolt 12.

VAs will be evident to those skilledin the art, my invention permits of various modifications without departing from 4the spirit thereof or the scope oi the appendedclaims.

What I claim is l. The combination of two members hav' ing a hinged connection betweentheincomprising two adjacent perforated lugs located on said members, respectively, and apivot pin extending through an aperture in each lug, terminal contacts arranged side by side and located on the saine side of both of said lugs and surrounding said pivot pin, connections between said terminal contacts and said members to causer them to turn with said members, respectively, about the axis of said pvot pin, one of said connections comprising a block of insulating' materialV arranged at the oppositeside of said contacts Vfrom both of said lugs and mounted to slide axially on said pivot pin and revolve with the far lug, a

spring acting on the block to cause it to cooperate with the nearest lug to yieldinglyypress said. contacts toward each other, said block being located between said spring and the nearest of said terminalfcontacts and insulating said spring froinfsaidA `terminal contacts, and electrical conductorsf'secured to Vsaid contacts and carried by their? associated A members, respectively.

Y 2. The combination oftwo members hav-1 ing a hinged connection between them comprisingrtwo lugs mounted upon said members,

respectively, a pivot pin, terniinal Vcontact-s' arranged side by side on the 'same'side of vboth ot said lugs and surrounding said pivot pin. means for causing said contacts to turn electrical conductors secured to said contacts It will also be apparent that the l Ving a'. hinged connectionbetween them com spring-pressed block and cause said block to presssaid "contacts toward each other, and

and carried their associated members, re-

spectivelv.V

The combination of'two members havpijising two pairs of lugs having their corresponding elements mounted on said'members, respectively, a pivot pin, two pairs of terminal contacts spaced apart and mounted loiirsaid pivot pin between said pairsof lu with the contacts of each pair arranged sid by sidein electrical contact, and Iadapted to be relatively turned about the axis of thel pivotpin, connections between one of the contacts'of each pair and oneof saidmem bers comprising two blocks loosely mounted on'said pivot pin having connections with said member for holding the blocks from ti'iriiing-niovement with relation to said one v member and having connections with said contact of each pair to hold said contacts and the other hinged member, a spring coiled about the pivot pin and arranged between 10.5 the blocks or pressing the blocks outwardly in opposite directions, abut'inents surround- A ing the pivot pin and-lcooperating'with the blocks to hold the contacts-of each lpair in electrical engagement, and`| electrical conductors secured to said contacts and carried by their associated members, respectively.

4t. The combination'of two members having a hinged connection betweeny themcomprising two pairs of `lugs having their corresponding elements-mounted on said mem-N bers, respectively, a pivot pin,` two pairsof terminal contacts spaced apart and mounted on said pivot pin betweensaid pairs of lugs 120 with the contacts of each pair arranged side by side in electricall cont-act and adapted to" befrelatively turned aboutthe axis of the `pivot pin,\connections,between one of `the contacts oteach pair Aand one of said mem- 125 'bers comprising two blocks movable in a direction parallel to the axis of said pivot pin and havin u suitableV connections with said last mentioned member 4for holding. them from turning movement with relation to said member, and having connections with said Contact of each pair to hold said contacts from turning movement with relationto said blocks and said member, connections between 5 the other terminal contact of each pair and the other hinged member, means for yieldingly pressing the blocks outwardly in oppositev directions, abutments cooperating with the .blocks to hold the contacts of each pair in electrical engagement, and electrical conductors secured to said contacts and carried iby their assooiated'hinged members, respec-

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