US306776A - Vbbbswt i - Google Patents

Description

(No Model.)

` M. L", RHEEN..

, TooTH BRUSH.

No. 306,?76. Patented Oct. 2l, 1884.

a. 5a u In.

UNITED" STATES.

ylUirniifr FFCEf? l n einem, on New 'ironie Y.

room-rs nues.

,EFICAEIOM forminggparito'llietters Patent- Io; 306,776, dated October 23;, 11384.

` AinplinatilmifilmlanuahyEl,1884. (Nomio'ehl In tlf wZtmlz, it nung/y conocem- Be it kneim that LhllnrninMRIrnrm e citizen of theUnitod Stetes;,a .ncll w resident of the city of New York, in; the. cou-niiyo NewYork and State ofN'cw Yonlrlllaufc invented cer-A tain new audi usefurl lm pnonemeuts, in Booth Brushes, 'oil which` the iblloniing is: a specificantion. v

My ihirenti on consists` in; thecoustnuotion of the 'brush hereinafter described.; aind claimed. lvigure 1 shows a sifl'ef vieni oil'xuy'impnoveit brush. Fig. 2r shows :et pniiew thereof,` the lnrisizleslheing jueseniicolf upwardly..

lnkclcttcrs indicutoliikepitrtsin both igf skilled in the dental art, lorA reasons which 1re-ell not hcre be crcpi'uincigthat the. teeth shouhl he cleansecll by passingjthebristlcs of' ij., c., from the gums towardl their cutting` or grindih gsurlecesenChnottransyersely` across thetccth 51 and' alsoith at onefol'fthcireasonsnvhy tliebnelr teth, and cspecinllythe; wisdom tceiluliswe to be early extractor-li is becahse `they are iusuilieicntly cleansed; and therefore decay@ enel also, that n large; proportion ofthe eiwit-ies which occur inf the incisore originate in the inside of theseteeth forfthe saine reason. .v

L is the handle of my iinproveda` brush, mnilc v of any suitable material.. Instead; however, ot' being straight or curved beokwnrdly, as

its lengt-h, tapersqute d cei'dcdlyf from about 40 sucli brushes have' heretofore been; med'e,- I

curvethe handle; forwardly,V as shown in the drawings, thebristlesbeing onJ thenside 'of the curve. Thebaclc'oithc brushrshown at BQ) instead; of heingoithe same sizethroughout into theilgmclr, o1 are out altcrbcinggso set, in

the nimmer shown in Figi, 1., At'they are long. They then grndualiydecrcuse in length lt is non'` generally: umllerstooih by those` the face of the bristlesv is intended to follow the curve of the line of teeth on the' -sidesot the jaws.

lit'willbe oliscrued that by curving the haul- `ille', asshown, the brushyqillbe more easily and naturally/ held in` proper relation to the teeth thun Ait it were straightor curvedinthe yopposite di reetio,beea1isc the brush is usually held inthe hand which is opposite the row of teeth beingbrushe'd.' Thus the curvature of the handle and: the. curved outline given to Vthe cinlsof Lhefbristles coact to `enable the user, by simply rotating his Wrist, to cause the bristles to pass uniformly over alllf'the `teeth in juxtapositionfto the. brush from' the gums downwardly; also, that,f the bristles being cut in the curved outline shown, they rub equallyagainst all theteeth inijuxteposition to them, and, owing to the front end` of the back of the brush being reduced in width, and preferably in thickness also, it can be more y easily carried up under the check, which, opposite the` back' teeth, squite thick and heavy, tothe junction between the gums. and the teeth, tha-n if the back -of the brush were the sume width-and thickness throughout. And it will also be especially noticed that the stiff tui't of` bristles C atthe extreme eml of the brush can he made toipass around b ehinil the lastiooth, which is normally a. wisdom tooth, and' thus thoroughly brush all Sides of ii.

lVhcn used io brush the inner surfaces 01' the teeth, especially thc ncisol's, the curva-4 ture of the handle enables the user more naturally and easily lo bring the i;ui't C against such surlaiws.

Tooth hr :shes as usually made have no ineansliy which they can be suspended1 and consmpiriitly are usually placed in a mug 'on ure in the brush docs. not readily evaporate latingaround the brush dries it rapidly. 4-l am aware that a hole has been made through the handle of culinary utensils, whereby they may be suspended; but never to my knowledge has any provision been heretofore made for suspendiu g a tooth-brush and whereas the hole'in the handle of said culinary utensils has been provided simply and solely as a means whereby the same may be'kept in the place provided for it, without any special benefits resulting'to such utensil by reason of Aits occupying a suspended position, it is not so with a tooth-brusl1,because, as heretofore stated, special-advantages are incident to the Suspension of a toothbrush; and not only is this true, but, furthermore, special advantages result from ha'viug the means of suspension arigid support and a hole in the handle of the brush, passing through it from front to rear,

because if the meansof suspension were a vstring o r a ring passing throughsuch ahole,

then the brush could twist on the string or ring and the wet bristles come in contact with `the wall orother thing againstwhieh the brush was suspended, thus injuring the bristles,and being also unpleasant to the user of the brush; but, ou the contrary, the hole being made in the handle, as shown, and the brush hung with the bristles pointing outwardly, they cannot come in Contact with anything, and

because ofthe curvature of the handle the brush will assume the positionshown in Fig. l, 4o

X representing the vertical surface against which the brush is hung, and Xthe peg.

'I am also aware that prior to my invention tooth-brushes have Vbeen made in which the bristles have beentrimmed or out on the aro of a circle, so Athat the central bristles'were [shorter than those at the ends, and also that that portion .of the handle which constituted .the back of t-hebrush, into which the bristles were inserted, has been given a curved form, so thatthe outer ends of the bristles, although ,the bristles were all of thesame length, have had 'a curved outline. '.Ilherefore do not claim these features, broadly.

' Having .Il pAS'ja-:lnew"article of manufacture, the

thus described my `invention YI Y herein-described improved tooth-brush, ha\* ing a handle curved one way throughout substantially its entire length, and tapered edgewise toward the end of -the brush at the part which forms 'the back of the brush, provided with bristles placed on the inside of the curve` a projecting tuft'of bristles on the ext-reine end of the brush, and a hole in the end' of the han- (lle, substantially as and for vthe purposes set forth.

2. A tooth-brush comprising a handle curved one way vthroughout substantially its entire length, and provided with bristles on the inside of the curve, that portion of the back which contains the bristles being tapered edgewise toward the end of the brush, and a tuft of bristles at the extremity ol' the brush projecting beyond the surface of the adjoining bristles, substantially as and for the purposes Set forth.

3. A tooth-brush provided with two or more converging lines of bristles,which extend substantiall y the ent-ire length of the brush, and terminate at the extremity of the brush in a tuff. of bristles, which projects at right angles l to the handle of the brush and beyond the l surface ofthe adjoining bristles, substantially as and for the-purposes set forth.

4. A tooth-brush in which the back of thebrush tapers from the end of the brush nearest the handle toward the extremity of the brush, and also is reduced in thickness toward the extremity, substautiall y as and for the purposes set forth.

Atooth-brush haring ahaudle formed in substantially the are of a circle, the bristles being 'placed on the inside of the are `andat one end of the handle, and a hole through the handle from the front to the back side thereof 9 at the end opposite the bristles, so that when the brush issuspended by-Incansmf a peg passing through the hole, with' the bristles presented outwardly, the seniicircular o'r arc shape of the handle will cause that part of the brush which contains the bristles to be held away from the wall or other object against which the brush is hung, substantially as and -for the purposes set forth.

Signed at New York, in the county of New York and State of New York, this 31st dayy of December, A. l)'.. 1883.

v MEYERL. RHEIN. lVitnessea;

BNN Loan/Y,

. WALTER H. CRITTENDEN.

Images