US1769572A - Pencil - Google Patents

Description

l E. GRosz July 1, 1930.-

PENCIL Filed Feb. 15, 1929 In ven-for Edward @raiz By @lw man 'Attorney g e EDWARD GRosa'oFQDYs'AaT, row Y the vpencil while writing.

`lead carrier and the Patented July 1, 1930 'l 1,769,572rfl Appncation nieu February 15, 1929.Y 'serial No@ 3401585;

` This invention rrelates to -certain new and useful improvements in a pencil,` and espe-A cially in a pencil of the mechanically'operated type, and has forits vpriifnary object the provisionvof a novel connection between the pushing element 'for' the Carrier.

' `A still further toprovide a pencil of the character'above described, which is of'simplified kconstruction, whereby'fthe separate elements of the pencil may be readily and easily assembled, and otherwise well adapted forthe purpose designed.` y A'further object of the invention is to provide a' novel cushioning means for the lead holder, which will greatly enhance the writing qualities of the penCiL'and at the same.

time greatly decreasefthe danger of 4'breaking thelead when undue pressure is exertedzupon v f 'Further objects and advantages of the' invention will present themselves from time to'time during astudy of the. followingdescription taken `inv connection withvthe accompanying ydrawing whereinc; 1 *Figurelisy a longitudinal sectional view through the improved pencil, and l Figure 2 is a longitudinal viewpartlyrin section showing the improved connection between the pusheri element andethe'lead holder.` f l, a, l y Whenreference ishad tothe drawing" it will be',I seen "that the pencil comp-rises an outer casing'o'r shell which is provided at itsy opposite longitudinal ends with reduced externallyv threaded portions 6. Q Screw threadedly connected to one ofathereduced portions 6 is alconieal pointed member 7 as shown in Figure 1 lof the drawings`,while with the y other vendI .is uscrew threadedly engaged anapertured cap'8. `Suitably mounted'within theca'sing andfprojecting through theapertured cap'8 is a hollow, shaft 9. To that portion of, the hollow :shaft 9 which projectsthroughthe'opening 10 formed' in the cap 8 is fricti'onally engaged a cap 11.

" Attention lis called lto'the'factthat the shaft 9 at one end reaches well-into and-lits object' ofthe invention 'i is i The upperportion of the lead.. carrier is pro` lheny the lead holder shoulder is formed onthe upper `of the shaftadapted torestagainsttheunider surface of the cap 8jadjacent'thefapersy ture 10; and upon the topmost edge: ofthe' casing 5. Thellower endof the shaftf'lis provided with a spiral vslot 14,3 which extends vfor substantially one-halffof the shaft, trans-" forming. this .portion ofthe shaft intofxa `shaft is aconical lead-carrierfl, the walls of the leadearrier are bent'inwardly,asY at 15 to provide an internal abutmentl lifor the rear end of a'leadwithinfthe carrier' videdl witha reducedextension as fat, 16 for apurpose to be hereinafter` set forth. Also arrangedy withinffthenworm portion` ofthe shaftf9 isa lead pusher19,whichfconsistss of a relatively large section 17 having a reduced extension 18 atV oneze'ndjand a thin metallic rod or needle 19 extending from the reduced portion 18.. 'f A lateral. extending .-ingeraQO projects from; the pusher 17 through-the spiral slot 14 ofthe'shaft 9. 4Itisfyetto be mentioned that 'a slot 422L is'formedion the infnerL wall ofthe casing 5 extending longitudinally for. the fulllengthlofthe casing, and itis into this slot that the linger 20 projects and rides, up" t and down in 'the easing so as lto prevent rotation, 'of-v the pusher-v when the shaft 9 `isibeing.rotated for advancing '.Or retracting the pusher.l A 5.@ 1, 15 land the pusher 17 is assembled,fitlLwill-vbe jseen'that the needle 19 extends intothevcarrier for a` pref determined;distance,while a spring' 23 surrounds the needle ,19 ,and ,hask one suitably, fastened vto theredueed portieri' 16" of the carrier 15 andthe other end fastened to the reduced portion 18 `of the puslier17- This springi23 actsas a'ucus'hioning means ,for the lead when the-'pencil is inf use, additionto its function as'a"re`silient connection between pusher 17 andthe carrier or holder 15. i

Vhejn in position for use in the carrier the lead ssecurely'retained in the carrier,"and

means. of the abutment 15a l:formedfwithin the carrienagainstliwhich the rear -or Ainner 1 n 'end ofthe lead abutsgrthesaid rear or inner l y end of the lead will be maintained in spaced relation to the inner end of the appendage dorpen .19, soas,.at all times, tobe loutof engagement with the 'said'appendage or pen 19.A The purposeofso positioning the lead Y KVffwith'in, the. `that. ,.wheul undue pressure enerted upon thefflead when. us.-

It through. use, n.fjjfiirr fr o `bejemsa 'wornes the pencil the lead instead of breaking Ais permitted to slide inwardlyfofthe "iii ` casing' with the Vholder v15--`\-airiallyf` of the# "shaftk9,'thus permitting aisomewhat `reciprocatory movement of the carrier .or'holder' .independently of .the pusher lthe Anormal 1 space between thefinnerfor" rear end of:V the lead Aandtheinner;` endl of .theglpenf or appendage 19: permittin'gvof :such frjnovement of. .the lca'rrier.Y ...without Aerid"anger-ing A the Vbrealringof theflead.` L When; it ,fis` desired. to: .j advance the r carrierusof as."to"position@thel lead beyond the.

lpoint. of?? :the .pencilt ytoi -jbe t gusedfthez cap Y lil han` frictional engagementE with the f tube or-shaft 9fis rotated in onedirection Vtoi'rotate' thesworm.which} isi air'integral. part l eithe shaft'lffor operating thepusherl where.' by butin thepuslrerf and-carrier"aneradvarced untiflthe-deadl projects;- thev .desired distance bayern awp-ninwrthefpmu. i

cineciated,z that VwhenV et; the lead-out Vfo'ffthe' Holder andi its? sub-f Jfjstitutioni byz-arnew Ipieni-tof: l'ead, the. pusher and.'carrierk I advanceds ini the-:f man.-

v nerxfset forth; untilwthe' carrierl onholder liisprojected lieyonrtr the: lowerl end of .the

ffHBymc-:ontinually rotating the tuhulars'haft it' is obvious thatthe' needle `19 wil-lfb@ forced j thnugli. the holder, 15 so that the .flower i or inner endfof lsaidi. needle 15W will@V come into contacts withf the inner end, of. the lead within@ the holden; and.;` by

eontinuedi rotation'ofi the shaftf, `:the said needlezwilt be forced through-:thehoider' for `117 andi needle '159i' being; so ,aetuated against .`thetension of springiy :"1

is 'obvias een. :am `whenanr4 ma `of the pei-milE isin luse,` thej'lead the holder T5; being spaced from4 the needle 19 permits "reciprocating movement of t eholder upon writing.;

withdraw the" ma; win-1inh "the penal Visf*merely necessaryto rotate"`l Athe cap. lilv n in.anyopppsitedirection. wherebyft'he pusher and carrier are retractedlwithinthe-worm.

y From the 4foregoing; i it will be seen Vthat my improved pencil issimplefandi practical to` .construct`,= amdfgreatlyenhances the Writ# y. .Hevingfphueamiedaraimenemg 1,769,572' y i i I claim as `new and desire to secure by Letters Patent is 1. A pencil comprising a casing, a hollow shaft rotatable in the casing, manual operating means for the-shaft, a spiral slot formed Vengagement withV vboth slots, said lug adapted for movement within the longitudinall slot 'topreventi rotation of the Y pusheruponfactuation of said shait, andaj spring interconnecting the pusher and carrier,r and y adapted to' normally hold the. pusher in spaced.relationtosaid carrier..

2. Afpencil. comprising a tubular. cas-' ing, a lead carrier reciprocable infthecasing, said'rcarrier having mea-ns.A to gripe,v lead and". for. retainingjjthel lead `against axial move-ment `in one-fdrection relative to-fthe carrier,` a carrier-'pusher movable in the casing` above said carrier andhavi-ng a yieldable: connection (with. the carrier whereby said carrier is adapted to reciprocate-withinr the: easing independentlylo'ii the said. pushher? reason, ,the Lead requirefthe" ejectionv er;.without yaftecting thefnormalposition ofa leadgrwithin. the earrizerf and; means tor. aci-,ue

ating saidz pusher..

I Av pencil: compri'sing avtubularfcasing,

afl'ead. carrier reciprocableyin the casing; 1100. said carrier .having/means to l grip a. f lead .for retainingthe. lead against axial movement inl one'. direction relative tothe carrier;I a carrlerpusher. movable 1n. thecaszing abovesaid.` carrier.,v means. for. moving I said carrier pusher., said; carrier .pusher havf ing' `a yi'el'd'able connection with the carrier, whereby said: carrier 'is' adapted to .reeiproicate Within thecasingindependently Vof the saidl pusher; without. Vaffecting thev normal pnsition.v oa. lead within ther carrier,r and said pusher having an appendage 'proiiectingr'intovsaidl carrier normally retained spaced'. relation lto the lead; Within the adapted toengage they lead: .for ejectigng the same from: the carrier `upon continued movement ofsaid` pusher:l whensaid carrier has -reachedits limit oimovement in one directionwithinsaid easing. i.

4. A pencil-comprisingaicasmg aihollovsr shaft' rotatahlein. the'. casing,.a tubular `lead Ve'amfier reciprocable in said, shaft, `'saidcar.-

rier having means to gripthe end of aleafd, and' an". abutment for the rear end of the lead', a `carrier Vpusher reciprocable insaid shaft above said carrier, saidpusher. having `:an appendage projzectinglvinto said carrier, a. lug'extending laterally Jtrom they pusher, a spring.` connection. betwv.een.,said pusher yandl another whereby both are adapted for simultaneous movement within said shaft, and for movement relative to one another when either said carrier or said pusher is in a relatively xed position, means operatively connecting said shaft and said pusher for eliecting said simultaneous movement o the pusher and carrier for moving said pusher relative to the carrierI when the latter has reached its limit of movement in one direction, means carried by said carrier to grip one end of a lead for retaining the latter in the carrier against axial movement in one direction relative of the carrier, and said pusher. having an appendage projecting into said carrier normally spaced from the said end of a lead and adapted to engage said end oii a lead, upon continued movement of said carrier pusher when said carrier Vhas reached the limit of Vmovement in said one direction for ejecting the lead from the carrier. o

In testimony whereof I afix my signature.

EDWARD GROSZ.

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