US1505413A - Nicotine filter for tobacco pipes - Google Patents

Description

Patented Aug. 19, 1924.

untreu eArENrerrroE.

KENTUCKY; f Assrelv'on; l or" ONE-HALF* To' Nico-'rinnrnrrnliaf non: monfooo Prensa Applicationnieanpn. 1s,

To all .whom may concern Beit known thatI, AOman EAMllrciroLs,

to. tobacco appli- The primary obj ect i ofl this, invention; isL

the provisionl of an improvedr tob accopipe, wherebylv therdraft throughlthe pipez travelsl a tortuous pathyin order tofilternicotineI from .smoke passing therethrough, without in any way fconstricting'the free flow of the i, draft.vv n j i A`n important object of this invention is the provision .of an improved. `nicotine filtering,y member, relatively simple vin character, adaptedffor/ attachment in thel passageways of4 pipes, whereby the draft throughff the pipe is over a tortuouspath, so that nicotine; may be readily and conveniently filtered fromsmokepassingatherethrough.A n

A- further object'of this finvention is the provision' of an improved. tobaccoy pipe of th'eabove'. described-y charaeter which'A is eX- tremely-practical .-in/ nature and embodies 1an improved arrangement, enabling, 'the cleansing. of the pipe, .and 'means preventing fthey entrance of nicotine into .the mouth of the user, during` smoking. of the.same. y V

Other kobj ects and `advantages i off this invention :will ,be apparent during. the course. ofthe 'followfing fdetailed description. n In thefaccompanying drawing, forming a=- part yof JAthis specification, and whereinysimilar reference? characters: designate` corre-y spfondng.Y partsfthroughout the several views,T Figure f1. is a' :longitudinal` vcrossr'secti'o-nal view,K taken. throughthe improvedpipe, showing: the .nicotine filterK 'arrangement as'` usedin -cor'rnectiontherewith.;y c Figure 2 is an enlarged plan view o-f'anovel: :typeof f nicotine? filtering Ymember A'as used linfconnection with 'theimprovedpipfep Figure?) is :anenlarged longitudinal cross i sectionalview, taken through ithe lfiltering memberfasrillustrated finFigureQ. i

Figure* 4 isa transverse 'crossf'sectional viewf ,takenfonY theline yofFigure. y Figurer4 5J' isf fai", transverse cross Y, sectional' view,l taken on :the/'lineL-' of Figure 3a 1922; Serial No; 555,491.Y

Figure 6 isa transverse cross sectional view, `taken on the line \6--6` of Figure 8;

ln the drawing,l whereinfor the purpose' ofl illustration l isi-"shown but the preferred,V

embodimentn of thisinvention, .the letter A' designates the improved pipe',which em'- bolies the pipe :body or casing B; nicotine filter member! C, and `mouth inserting `end Referring to the pipecasing B, the same may be"ofanyy general formation includingtthe tobacco bowl10,vand` the stem 11 which is providedwith ahorizontal passageway 12Flongitudinally therethrough as isy the ordinary formation.

Referringto the construction of the nico-y tine filtering'member C, the4 sameispreferably of wood, hard rubber or` analogousmaterial andisjprovided with the :cylin- 'j drie-al shaped 'forwardA and i rear` endstl" and 16 respectively. The yforward-vend y15 is preferably` provided with a'metallic capi 17 uponfits extreme inneror forwardend, counterl sunlrthereon, and' which constru tion is Vprovided in order toI protectthe end.

15 of the member C againstwheatandfire incident to `smoking of the tobacco within the'bowl 10, .as lwillfloe understocridr,when.y explaining?,k the operation of ther improved.y pipevA.,e The end-15, as ,well as'the cap: 17, isprovided ywith a ygroove 20, which eX- tends longitudinallyr along the outerx sul-` ,facesfof said end and saidfcap and rovid'esf a.passagewayI forfthe draft ofte p-ipe A,as=will be'y res'entlyV described. Therearv` end 16, whic as before mentionedfis'ofA cylindrical formation eXtendsbeyond the end Aof the jpipef'stem and has an enlarged7 outer `endrv portiony 26v so that. it may` be' readily graspedA when inserting. `or lrem'ovinfga theflilteringmembeny- The mouth piece .D5 will berconnected with thistextended.' end-` of .fthe-filtering)member `in" any desired .man-.1. ner.- The fend (16 "isf furthermoreprovided with..afpassagewayf 31r extending@ axially: therethroughtand has its (forward end por; tionl` upturned, as at .33, and ropeningthrough an@inc'linedfor; bevelled face 3ft -which ris? p rovided.fupon' the l top; forward.. end of the-V cylinder portionflG/.f` The -endsyl/ and 161 offthe, improved `filter member C A,are connected ibya relatively fiat intermediate body portion 35,-`which preferably.V extends axially, of. the align-ingfcylindrical shaped lends 15.l

ioo

is relatively flat and is dispo-sed below the groove 2O andithe inlet opening 33. It is preferred that a projection 37, in the form of a partition be provided upwardly upon the surface 36 and being substantially semicylindrical in cross section for cooperation rwith the passageway 12 of the pipe stem 11. Apertures 38 and 39 may be provided in the intermediate portion of `the filter member C upon the forward and rear portions thereof. lt is preferred that the end face 40 ofthe projection 37 which faces the bevelled surface 34 be likewise bevelled. rllhe facing surfaces 41 andy 42 of the end 15 and projection 37 are likewise bevelled in converging relation toward the intermediate portion35. f

In the mounting of the improved filter member C within the pipe stem 12, the end 15, of course, extends inwardly of the passageway 12 so that the same is disposed adjacent the bowl 10. The ends15 and 16 snugly fit within'the passageway 12 soy that a draft passing through the pipe stem 11 will necessarily pass through the groove 2O andthe passageway 31. 'l/Vhen the improved filter arrangement C is thus disposed within the passageway 12, the passageway is subdivided into a forward upper vchamber 45 and a rear upper chamber 46, which are respectively disposed intermediate the end 15 and projection 37, and the end 16 and pro j ection 37. A relatively long lower chamber'k 47 is lalso provided, which communicates with the chambers 45 and 46 through the K respective apertures 38 and l39.

The mouth piece D is provided with a stem portion'50, the outer surface of which is disposed flush with the peripheral surface of `the outer end portion of the filter member, as can readily be seen in. Figure 1 of the drawing; This mouth piece D of the improved pipe A is provided with a passageway 52 extending axially therethrough and aligning with the passageway 31.

In operation, as the user rdraws upon the pipe, so to' speak, the draft will be downwardly through the chamber 54 of the bowl 10 and through the groove 20 in themember (l, entering 'the forward'top chamber 45. The partition 37 completely fills the upper part of the passageway 12 intermediate the chambers 45 and 46, so that the draft is baflied by` this partition 37 and directed downwardly through the aperture 38 into the mouth of the user. By the provision of such structure, the draft is forced to pursue a tortuous path so that the nicotine from the smoke prior to entering the mouth of the smoker is ltered in chambers 45 and 46 and enters the relatively long chamber 47, as can readily be under-stood. The main baille and filtering `operation takes place in the foremost upper chamber 45, so that the nicotine in its condensed form settles into the lower chamber 47. Due to the fact that the passageway 31 is offset as at 33, and communi catas with the upper chamber 46, the nicotine will `not enter the passageway 31 and consequently is prevented from entering lthe mouth of the'user, so that the smoke is refined and enters the mouth of the user in a desired condition.

' From the foregoing description of this invention, it can readily be seen that a nicotine filter arrangement for pipes has been Vprovided in which the draft is not unduly obstructed as by absorbent masses and like expedients heretofore adopted. The construction of thel pipe is practical and the diameters of the cylinder portions of the improved filter member C are relatively small, so that the improved arrangement is not cumbersome. f

-Various changes in Vthe shape, size and arrangement of parts may be made to the form of the invention shown, without departing from the spirit ofthe'i'nvention or the scope o f the claims.V

1. As an article of manufacture, a filter for tobacco pipes including cylindrical shaped ends connected by a relatively flat reduced intermediate portion, one'l of said ends having a groove extending longitudinally ythrough the samey to communicate above the top surface of said reduced intel mediate portion, the other of said ends having a passageway extending axially and longitudinally therethrough provided with an offset forward end opening upwardly above the top surface of said reduced flat intermediate portion, said intermediate 'flat portion having a project-ion of arcuate cross section extending upwardly of the'top sur? site sides of said upwardly extending proj ec-' tion. f

2. A pipe comprising a casing including a bowl and a hollow stem portion extending from said bowl, a filter member removably fitting in said hollow stem and havinga cyjlindrical inner forward endportion positioned adjacent the bowl and filling `the stem and a cylindrical rear end portion lling the outer end portion of the stem, aflat intermediatev strip-like vportion connecting the Cylindrical forward and rear end portions of the filter member and having its side edges engaging the walls of the stem and its upper and lower faces in spaced relation to the walls of the stem to provide spaces above and below the strip, the'forward cylindrical end portion being provided with a smoke passage leading from said bowl to a point above the forward end of the intermediate strip and the rear end portion of the filter member having a longitudif nally extending smoke passage extending substantially axially thereoffor the major portion of its length and having its inner end portion directed upwardly and opening ate strip, and an enlargement extending upwardly from the intermediate strip intermediate the length thereof and forming a partition having close engagement' with the walls of the stein to divide the space above the intermedi-arte. strip into separate end oompartments,` said intermediate strip beingy provided with openings between the partitionand enlarged end portions to providek communication between the spaces above and below the intermediate strip.

OLLIEEARL NICHOLS.

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