US1829898A - Tooth separator - Google Patents

Description

Nov. 3, 1931. s. lvoRY 1,829,898

' TOOTH SEPARATOR Filed April 2v, 1951 1N V EN TOR. @v-5 TER 5. /vo/PY.

BY @Y ATTORNEY.

*145 My'invention further-consists of various .other novel yteaturesfof constructiony andadly jvantage all' Yas Vheremafter ydescribed andy :j .Pafendi Nov.. 3.51931 A i OFFmE errns'rnnis. rvonYLon HILADPA, aPENNsYny-NIA, nssIeNon To THE ESTATE oF s;

J. w. LVORY, or PHILADE1.21115; rEnNsYLvANm j My 'inventionrelates to a `new and useful tooth" separator, lthe saine being an improvefmentfon my prior rPatent #11,7 02,869 of Feb- .'ruaryj1'9th 1929. The' general vpurpose `and the advantages ofniy inventionware fully setV inner" surface of theV teeth, by means of a `threaded element and this consumed unnecefs- .lfsary-'rtimaand I have therefore'invented-a 15 newconstruction whereby said jaws could be set byhand to any desiredy adjustment 'after f which 'the gradual separating by means of the Y v threaded elementl could be accomplished. i f j Second, in my prior construction theouter "2.0 j aws, that is, the jaws that bear on the outer surfacefof the teeth, were individuallyad- Y justable by means ofna threaded element which by nature of the construction was lol j 'cated in close prozriinity'toy the gums and the 25 lips so that manipulation of said outer jaws was rather diicult, and: I lhave invented a A Y newconstruction wherebysaid threaded elementsareidispensed wit Y It is the'objectof my present invention to relimiiiate these disadvantagesand to provide V a toothseparator, the jaws of which couldbe set-.by hand to'anyfdesired adjustment prior g tothe application of gradual pressure by means of the threaded element which forces the jaws apart to bring aseparating action to bearkupon the teeth to be alected.

Y To the above endsmy invention consists of an inner pair of hooked jaws, pivoted at their outerfendsto'a common link, a threadedelement engaging said link, atoggleconnection adaptedito be operatedbyysaidthreaded element, apair ofY slotted bracketscarried by saidfjawsand an outerfpair ofjaws adapted to lslide in'said brackets and to beactuated` by said toggle connection.

' claimedin the drawings, in which eiin'icuop meaA ein 27.1931'.

vhereinI shown4 and 2 described.

j For thepurpose ofV illustrating invenf.`

TOQTSEPART serial nos-533,044.

tion, I havel showny in. the` accompanying drawings one form thereof which is at .present preferredfby me, :since the same has 'been found inrpractice to give satisfactory and reliable results, although it is to vbe'understoodzthat the various instrumentalities of which my invention Aconsists can be variously. arranged andorganized and't-hat my invention is notflimited to the;precisearrangement and organization' of the" instrumentalitiesy -as Fig. l'represents a plan View of atooth separatorembodying' myinvention shown I applied tothe separation oftwo contiguous l teeth-.quiv=4 .y ,Y i

A l1T-ig.: represents a view similar toFig. 1 showingfmylnovel tooth separator applied :to the separation 1of--twononcontiguous teeth. Fi ,isa-section online 2 -2 of Fig. 1.

Figgfr'epresentsa perspective View ofc-one of the inner 'jaws forming part of my tooth separator. f' f Fig. 5 yisfaplan view off one of theouter jaws whichfoi-mpart of myV tooth separator.

' Vlvigp representsa section on. line 6,-6 of Fig VTis a sectienon line 7-7 of F ig. 1. 'f

vReferring 'toV the drawings' in` which like 'i 'reference vcharacters'indicate like parts, andl jmore particularly toFig. 1, I have shown a/ novel tooth separator which comprises the inner jawshorjseparating members Sf-'and 9 *eacht ofwhich Aconsists of the hooked or deflected member 10whijch is integral with or secured to the armllwhich terminates in a sharppoint at 15. The linklll is threadedly 'engaged by the screw element 16 which carries at itsinner end the toggle links 18 and 19 pivoted thereto at 20. 2l and 22'designate outer jawswliich are provided with the sharp points 23 and pivotedat 24 to the toggle linksflS and l9. 'l `hejaws and 2Q 'are adaptedy to slide in` the Ushaped brackets 25 and 26 which are secured'to'the armsll at 29. ThefpivotsQLLcOnneeting the toggle links 18 and`19to'the' jaws L21- and 22 are adapted Fig; Iit will be seenthatI haverk illustrated il my device as applied to the separation of two l 'contiguous teeth 34' and 36 with the sharpv points'23 of the outer jaws 21 and 22 bearing upon the juxtaposed outer surfacesoi" the teeth 34 and 36 and'with they sharppoints 12 of the inner jaws 8vand'9 bearingupon the juXtaposedinner surfaces ofthe teeth y321' had ybeen inserted.y e

'and 36. To separate the teethk34 and 36 it is necessary to turn thestem'l which forces the toggle links'18fandf19jforwardjuntil the".` -V pivots 24 reach the vinner ends of thes'lots* and 31. Further turning of the screw16 v results in lateral pressure exerted `onthe outer jaws 8 and 9, 21 and 22l to separate thepointsv 12 and 23, thus forcing apart the 'teethf34t` .andi36 between `which the'points-12 and 23 In the positionof lthe parts illustratedin Fig.'1 thefj'aws 8,9, 21 and 22 are locked against a'n'yrmovementJ and to'be abletofadi Y ,vjust'the spacingofthe-'jaws 8, 9, 21fand 22, f ,j by hand, ".without turning the screw -16, Vit

fis'qn'ecessaryto turn the screw 16 lto move the 2v5- centerf20 ofrthe toggle connections 18V and'19 Y towards the jaws.l .When this has'been kdon-e the jaws can beopened andfclosed through av screw`16 is turned to eiect separation to theY desired extent..

v Itv will thus be seenk that I havedevised a novel tooth vseparator'which constitutes a distinct improvement over Ymy: priorv Patent Havingithus described myinvention what l claim as new and Vdesire to secureby-Letters Patent,fis:-Y A f' "Inl adevice ot-fthe' character stated, a pair otfiiin'eraws`,fsl6ttedguide brackets carried thereby,`-a pair of outer awsY adapted to slide "witliinh'said brackets, a: pivoted connection commonjto the outer ends of said inner jaws, a vscrew' yelement threadedly Vengaging said pivotedconnection, toggle linkspivotallycjau'.-V ried by; the-inner fend of said. screw element,- theotherfendsofsaid toggle linksbeing piv- 'otally connected to saidfouterjaws, the pivetal connections ofsaid toggle links and said outer jaws engaging the slots in saidfbrackets. "In testimony whereofl affix mysignature.

- 1 IVORY.

predetermined range without the turning of or both sides of the intermediate teeth41,"the

- thescrew16, sothatif it is desired to separate A. 1two nonlcontiguous teeth 38 and 40 from one L f toggle link center 20is movedv awayffrom the .v ,l

mits 1 the jaws 8, 9, 21- and .22 toi be separated by .Y hand andv particularlyv itpe'rrrritsfthe ad- 1j u'stment 'of the jaws21"and 22 to theparticuflar position ofthe teeth to'be'separated.

After such adjustment hasbeemmade the screwf16is-turnedtoeiiect gradualse'p aration Las 'abwe described. In -Fig."2 rIhave illus` 'Y y tratedmy novel tooth separatorV in its yposilink; 14; by turning-the screw 16. yIjlhis per- Y tion of maximum separation wherein is l shown as having separated two non-contiguous teeth 38 and' L10V-from an intermediate Y tooth 41 resulting'in the space 12 on either side ofthe toothfll-v yIn the position of the v part-sfillusti"ated*in Fig. 2'the jaws 8,79, "21 Y Y and 22are in their position of maximum'separationl and cannot be manipulatedv by hand,

'this'posi'tionbeing the other or opposite exfV y l' treme of the position shown in Fig. 2. To ma- .y i

nipulate the jaws 8, 9, 21and 22'by hand it is necessary that the Ytoggle center20' oc- *V cupy a position intermediate of its positions flin Figsjl and 2. VIn orderto effect individual adjustment ofthe ljaws 21 and 22 before ap- {plyingpres'sure by turning the screw16`,'i t is merely necessary to'posYitionithe toggle center j 2O -infany intermediate `as opposedtdthe en*VVV treme positionsA thereof` so .as toV render' vthe Y' aws 8, 9, 21 and 22 manually movable.' ff .Y I

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